CN220292140U

CN220292140U - Optical communication device and optical network apparatus

Info

Publication number: CN220292140U
Application number: CN202223089880.3U
Authority: CN
Inventors: 刘霖瑜; 张迎; 周恩宇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-07-28
Filing date: 2022-11-17
Publication date: 2024-01-02
Anticipated expiration: 2032-11-17
Also published as: WO2024021910A1

Abstract

The embodiment of the application discloses an optical communication device and optical network equipment. The optical communication device provided by the application comprises: a first optical component and a second optical component; the first optical component is used for transmitting a first wavelength optical signal, and the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal and/or receiving a third wavelength optical signal, and service data are carried in the second wavelength optical signal and the third wavelength optical signal. Therefore, the technical scheme realizes the detection of the optical fiber through the first wavelength optical signal emitted by the first optical component. And the visual function of the optical fiber distribution network is realized. Business data are carried in the second wavelength optical signal and the third wavelength optical signal, and the communication function and the visual function of the optical communication device are integrated.

Description

Optical communication device and optical network apparatus

The present application claims priority from the chinese patent office filed at 28, 7, 2022, under application number 202221968980.0, entitled "optical module and optical network device", the entire contents of which are incorporated herein by reference.

Technical Field

The present disclosure relates to the field of optical communications, and in particular, to an optical communications device and an optical network device.

Background

Currently, in a passive optical network (passive optical network, PON), an upstream optical signal of an optical network unit (optical network unit, ONU) is transmitted to an optical line terminal (optical line terminal, OLT) side via an optical fiber, and received by the OLT. Similarly, the downlink optical signal of the OLT is transmitted to the ONU side through the optical fiber, and is received by the ONU.

Normal upstream or downstream communication can be performed between the ONU and the OLT, but it is not known which fibers are occupied, free or broken in the fiber distribution network (optical distribution network, ODN). At present, a red light pen is mainly used for accessing an optical fiber so as to judge whether the optical fiber breaks or not, so that the visual management of the ODN is realized.

However, the red light pen is independent of the PON network as a fiber breakage detection means, and cannot realize automatic visual management of the ODN network.

Disclosure of Invention

The application provides an optical communication device and optical network equipment, which realize automatic detection of optical fibers in an ODN network and integrate a communication function and a visual function of the optical communication device.

A first aspect of the present application provides an optical communication apparatus, comprising: the first optical component, the second optical component, the first coupler and the first optical fiber connection port; the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler through the second optical transmission channel, and the third end of the first coupler is connected with the first optical fiber connection port;

The first optical component is used for sending a first wavelength optical signal to the first coupler, wherein the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal to the first coupler, and service data is carried in the second wavelength optical signal; the first coupler is used for coupling the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmitting the combined signal to the first optical fiber connection port.

In the above technical solution, the optical communication device integrates a first optical component and a second optical component, where the first optical component is configured to transmit a first wavelength optical signal, and the first wavelength optical signal is a visible light signal or a near infrared light signal. The human eye can recognize the light generated by the first wavelength light signal. Therefore, the optical fiber in the ODN network is automatically detected through the first wavelength optical signal, and the automatic visual management of the ODN network is realized. For example, the first wavelength optical signal may detect whether an optical fiber in the ODN network is occupied, idle, or broken, and so on. The second optical component is used for transmitting a second wavelength optical signal. Business data is carried in the second wavelength optical signal, and the communication function and the visual function of the optical communication device are integrated. The second optical component may be an emitting optical component, i.e. the optical communication device comprises a unidirectional optical component, on the basis of which the first optical component is integrated. Thereby realizing the integration of the communication function and the visualization function of the optical communication device.

A second aspect of the present application provides an optical communication apparatus, comprising: the first optical component, the second optical component, the first coupler and the first optical fiber connection port; the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler through the second optical transmission channel, and the third end of the first coupler is connected with the first optical fiber connection port;

the first optical component is used for sending a first wavelength optical signal to the first coupler; the second optical component is used for receiving the third wavelength optical signal; carrying service data in the third wavelength optical signal; the first coupler is used for separating the first wavelength optical signal and the third wavelength optical signal from the first optical fiber connection port so that the first wavelength optical signal is sent to the first optical fiber connection port and the third wavelength optical signal is sent to the second optical component.

A third aspect of the present application provides an optical communication apparatus, comprising: the first optical component, the second optical component, the first coupler and the first optical fiber connection port; the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler through the second optical transmission channel, and the third end of the first coupler is connected with the first optical fiber connection port;

The first optical component is used for sending a first wavelength optical signal to the first coupler; the second optical component is used for sending a second wavelength optical signal to the first coupler; the first coupler is used for coupling the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmitting the combined signal to the first optical fiber connection port; and a first optical component for transmitting a first wavelength optical signal to the first coupler; the second optical component is used for receiving the third wavelength optical signal; the first coupler is configured to separate the first wavelength optical signal and the third wavelength optical signal from the first optical fiber connection port such that the first wavelength optical signal is transmitted to the first optical fiber connection port and the third wavelength optical signal is transmitted to the second optical assembly.

In one possible implementation manner, the first optical component is connected to the first end of the first coupler through a first optical transmission channel, the second optical component is connected to the second end of the second coupler through a second optical transmission channel, and the third end of the first coupler is connected to the first optical fiber connection port through a third optical transmission channel. In this implementation, one connection between the first optical component and the first coupler, one connection between the second optical component and the second coupler, and one connection between the second coupler and the first fiber optic connection port are shown.

In one possible implementation manner, the first optical transmission channel is a first optical fiber, the second optical transmission channel is a second optical fiber, and the third optical transmission channel is a third optical fiber. In this implementation, the optical transmission channel may be an optical fiber, thereby facilitating implementation of the scheme.

In one possible implementation manner, when the second optical component is an emission optical component, the optical communication device further includes a first housing, and the first optical transmission channel, the second optical transmission channel, and the third optical transmission channel are optical transmission channels disposed on the first housing; the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel; the first shell is provided with a first optical transmission port communicated with the first optical transmission channel and a second optical transmission port communicated with the second optical transmission channel; the first optical component is encapsulated in the first optical transmission port, and the second optical component is encapsulated in the second optical transmission port.

In this implementation, the second optical component is an emission optical component, and the first optical component and the second optical component may be integrated in the first housing, so as to integrate the first optical component and the second optical component in the optical communication device, and implement integration of a communication function and a visual function of the optical communication device.

In one possible implementation manner, when the second optical component is a receiving optical component, the optical communication apparatus further includes a first housing, and the first optical transmission channel, the second optical transmission channel, and the third optical transmission channel are optical transmission channels disposed on the first housing; the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel; the first shell is provided with a first light transmitting port communicated with the first light transmission channel and a light receiving port communicated with the second light transmission channel; the first optical component is encapsulated in the first optical transmitting port, and the second optical component is encapsulated in the optical receiving port.

In this implementation manner, the second optical component is a receiving optical component, and the first optical component and the second optical component may be integrated in the first housing, so as to integrate the first optical component and the second optical component in the optical communication device, and implement integration of a communication function and a visual function of the optical communication device.

In one possible implementation manner, when the second optical component is a transceiver optical component, the optical communication device further includes a first housing, and the first optical transmission channel, the second optical transmission channel, and the third optical transmission channel are optical transmission channels disposed on the first housing; the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel; the first shell is provided with a first optical transmitting port communicated with the first optical transmission channel and an optical receiving and transmitting port communicated with the second optical transmission channel; the first optical component is encapsulated in the first optical transmitting port, and the second optical component is encapsulated in the optical receiving and transmitting port.

In this implementation manner, the second optical component is a transceiver optical component, and the first optical component and the second optical component may be integrated in the first housing, so as to integrate the first optical component and the second optical component in the optical communication device, and implement integration of a communication function and a visual function of the optical communication device.

A fourth aspect of the present application provides an optical communication apparatus, comprising: the first optical component, the second optical component, the third optical component, the first coupler, the second coupler and the first optical fiber connection port; the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, the third end of the first coupler is connected with the first end of the second coupler, the second end of the second coupler is connected with the third optical component, and the third end of the second coupler is connected with the first optical fiber connection port; the first optical component is used for sending a first wavelength optical signal to the first coupler, wherein the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal to the first coupler, and service data is carried in the second wavelength optical signal; the third optical component is used for receiving a fourth wavelength optical signal, and business data is carried in the fourth wavelength optical signal; the first coupler is used for coupling the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and sending the combined signal to the second coupler; the second coupler is used for sending the combined wave signal to the first optical fiber connection port, receiving the fourth wavelength optical signal from the first optical fiber connection port and sending the fourth wavelength optical signal to the third optical component.

In the above technical solution, the optical communication device integrates the first optical component, the second optical component and the third optical component. A connection of the first optical assembly, the second optical assembly, the third optical assembly, the first coupler and the second coupler is provided. The first optical component is used for transmitting a first wavelength optical signal, and the first wavelength optical signal is a visible light signal or a near infrared light signal. The second optical component is used for transmitting a second wavelength optical signal, the third optical component is used for receiving a fourth wavelength optical signal, and service data are carried in the second wavelength optical signal and the fourth wavelength optical signal. Since the wavelength of the first wavelength optical signal is a visible light signal or a near infrared light signal, the human eye can recognize light generated by the first wavelength optical signal. Therefore, the optical fiber in the ODN network is automatically detected through the first wavelength optical signal, and the automatic visual management of the ODN network is realized. For example, whether an optical fiber in the ODN network is occupied, idle, broken, or the like is detected by the first wavelength optical signal. Business data can be carried in the second wavelength optical signal and the fourth wavelength optical signal, and the communication function and the visual function of the optical communication device are integrated.

Based on the fourth aspect, in one possible implementation manner, the first optical component is connected with the first end of the first coupler through the first optical transmission channel, the second optical component is connected with the second end of the first coupler through the second optical transmission channel, the third end of the first coupler is connected with the first end of the second coupler through the third optical transmission channel, the second end of the second coupler is connected with the third optical component through the fourth optical transmission channel, and the third end of the second coupler is connected with the first optical fiber connection port through the fifth optical transmission channel. In this implementation, one connection mode of the first optical component, the second optical component, the third optical component, the first coupler, the second coupler, and the first optical fiber connection port is shown, facilitating implementation of the scheme.

Based on the fourth aspect, in one possible implementation manner, the optical communication device further includes a first housing; the first optical transmission channel, the second optical transmission channel, the third optical transmission channel, the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the first shell; the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel, and the second coupler is arranged at the junction of the third optical transmission channel and the fourth optical transmission channel; the first shell is provided with a first optical transmission port communicated with the first optical transmission channel, a second optical transmission port communicated with the second optical transmission channel and an optical receiving port communicated with the fourth optical transmission channel; the first optical component is packaged at the first optical transmission port, the second optical component is packaged at the second optical transmission port, and the third optical component is packaged at the optical receiving port.

In this implementation, the first optical component, the second optical component, and the third optical component may be integrated in the first housing, thereby implementing integration of the first optical component, the second optical component, and the third optical component in the optical communication device, and implementing integration of a communication function and a visualization function of the optical communication device.

Based on the fourth aspect, in one possible implementation manner, the optical communication device further includes a second housing and a third housing; the first optical transmission channel and the second optical transmission channel are optical transmission channels arranged on the second shell; the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the third shell; the third light transmission channel is arranged between the second shell and the third shell; the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel, and the second coupler is arranged at the junction of the third optical transmission channel and the fourth optical transmission channel; the second shell is provided with a first optical transmission port communicated with the first optical transmission channel and a second optical transmission port communicated with the second optical transmission channel; the third shell is provided with a light receiving port communicated with the fourth light transmission channel; the first optical component is packaged at the first optical transmission port, the second optical component is packaged at the second optical transmission port, and the third optical component is packaged at the optical receiving port.

In this implementation, the first optical component and the second optical component may be integrated in the second housing, and the second housing and the third optical component may be integrated in the third housing, thereby implementing integration of the first optical component, the second optical component, and the third optical component in the optical communication device, and implementing integration of a communication function and a visualization function of the optical communication device.

A fifth aspect of the present application provides an optical communication apparatus, comprising: the first optical component, the second optical component, the third optical component, the first coupler, the second coupler and the first optical fiber connection port;

the first optical component is connected with the first end of the first coupler, the third optical component is connected with the second end of the first coupler, the third end of the first coupler is connected with the first end of the second coupler, the second end of the second coupler is connected with the second optical component, and the third end of the second coupler is connected with the first optical fiber connection port;

the first optical component is used for sending a first wavelength optical signal to the first coupler, wherein the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal to the second coupler, and service data is carried in the second wavelength optical signal; the third optical component is used for receiving a fourth wavelength optical signal, and business data is carried in the fourth wavelength optical signal; the first coupler is used for separating the first wavelength optical signal and the fourth wavelength optical signal from the second coupler, so that the first wavelength optical signal is sent to the first coupler and the fourth wavelength optical signal is sent to the third optical component; the second coupler is used for coupling the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, sending the combined signal to the first optical fiber connection port, receiving the fourth wavelength optical signal from the first optical fiber connection port, and sending the fourth wavelength optical signal to the first coupler.

In the above technical solution, the optical communication device integrates the first optical component, the second optical component and the third optical component. Another way of connecting the first optical assembly, the second optical assembly, the third optical assembly, the first coupler and the second coupler is provided. The first optical component is used for transmitting a first wavelength optical signal, and the first wavelength optical signal is a visible light signal or a near infrared light signal. The second optical component is used for transmitting a second wavelength optical signal, the third optical component is used for receiving a fourth wavelength optical signal, and service data are carried in the second wavelength optical signal and the fourth wavelength optical signal. Since the wavelength of the first wavelength optical signal is a visible light signal or a near infrared light signal, the human eye can recognize light generated by the first wavelength optical signal. Therefore, the optical fiber in the ODN network is automatically detected through the first wavelength optical signal, and the automatic visual management of the ODN network is realized. For example, whether an optical fiber in the ODN network is occupied, idle, broken, or the like is detected by the first wavelength optical signal. Business data can be carried in the second wavelength optical signal and the fourth wavelength optical signal, and the communication function and the visual function of the optical communication device are integrated.

In a possible implementation manner according to the fifth aspect, the first optical component is connected to the first end of the first coupler through the first optical transmission channel, the third optical component is connected to the second end of the first coupler through the second optical transmission channel, the third end of the first coupler is connected to the first end of the second coupler through the third optical transmission channel, the second end of the second coupler is connected to the second optical component through the fourth optical transmission channel, and the third end of the second coupler is connected to the first optical fiber connection port through the fifth optical transmission channel. In this implementation, another connection mode of the first optical component, the second optical component, the third optical component, the first coupler, the second coupler, and the first optical fiber connection port is shown, facilitating implementation of the scheme.

Based on the fifth aspect, in one possible implementation manner, the optical communication device further includes a first housing; the first optical transmission channel, the second optical transmission channel, the third optical transmission channel, the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the first shell; the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel, and the second coupler is arranged at the junction of the third optical transmission channel and the fourth optical transmission channel; the first shell is provided with a first optical transmission port communicated with the first optical transmission channel, an optical receiving port communicated with the second optical transmission channel and a second optical transmission port communicated with the fourth optical transmission channel; the first optical component is packaged in the first optical transmission port, the second optical component is packaged in the optical receiving port, and the third optical component is packaged in the second optical transmission port. In this implementation, the first optical component, the second optical component, and the third optical component may be integrated in the first housing, thereby implementing integration of the first optical component, the second optical component, and the third optical component in the optical communication device, and implementing integration of a communication function and a visualization function of the optical communication device.

Based on the fifth aspect, in one possible implementation manner, the optical communication device further includes a second housing and a third housing; the first optical transmission channel and the second optical transmission channel are optical transmission channels arranged on the second shell; the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the third shell; the third light transmission channel is arranged between the second shell and the third shell; the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel, and the second coupler is arranged at the junction of the third optical transmission channel and the fourth optical transmission channel; the second shell is provided with a first light transmitting port communicated with the first light transmission channel and a light receiving port communicated with the second light transmission channel; the third shell is provided with a second optical transmission port communicated with the fourth optical transmission channel; the first optical component is packaged in the first optical transmission port, the second optical component is packaged in the optical receiving port, and the third optical component is packaged in the second optical transmission port. In this implementation, the first optical component and the third optical component may be integrated in the second housing, and the second housing and the second optical component may be integrated in the third housing, thereby implementing integration of the first optical component, the second optical component, and the third optical component in the optical communication device, and implementing integration of a communication function and a visualization function of the optical communication device.

A sixth aspect of the present application provides an optical communication apparatus, comprising: the first optical component, the second optical component, the third optical component, the first coupler, the second coupler and the first optical fiber connection port;

the first optical component is connected with the first end of the second coupler, the second optical component is connected with the first end of the first coupler, the third optical component is connected with the second end of the first coupler, the third end of the first coupler is connected with the second end of the second coupler, and the third end of the second coupler is connected with the first optical fiber connection port;

the first optical component is used for sending a first wavelength optical signal to the second coupler, wherein the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal to the first coupler, and service data is carried in the second wavelength optical signal; the third optical component is used for receiving a fourth wavelength optical signal, and business data is carried in the fourth wavelength optical signal; the first coupler is used for separating the second wavelength optical signal and the fourth wavelength optical signal from the second coupler, so that the second wavelength optical signal is sent to the second coupler and the fourth wavelength optical signal is sent to the third optical component; the second coupler is used for coupling the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, sending the combined signal to the first optical fiber connection port, receiving the fourth wavelength optical signal from the first optical fiber connection port, and sending the fourth wavelength optical signal to the first coupler.

Based on the sixth aspect, in one possible implementation manner, the first optical component is connected with the first end of the second coupler through a first optical transmission channel, the second optical component is connected with the first end of the first coupler through a second optical transmission channel, the third optical component is connected with the second end of the first coupler through a third optical transmission channel, the third end of the first coupler is connected with the second end of the second coupler through a fourth optical transmission channel, and the third end of the second coupler is connected with the first optical fiber connection port through a fifth optical transmission channel. In this implementation, another connection of the first optical component, the second optical component, the third optical component, the first coupler, and the second coupler is shown, facilitating implementation of the scheme.

Based on the sixth aspect, in one possible implementation manner, the optical communication device further includes a first housing, where the first optical transmission channel, the second optical transmission channel, the third optical transmission channel, the fourth optical transmission channel, and the fifth optical transmission channel are optical transmission channels provided on the first housing; the first coupler is arranged at the junction of the second optical transmission channel and the third optical transmission channel, and the second coupler is arranged at the junction of the first optical transmission channel and the fourth optical transmission channel; the first shell is provided with a first optical transmission port communicated with the second optical transmission channel, an optical receiving port communicated with the third optical transmission channel and a second optical transmission port communicated with the first optical transmission channel; the first optical component is encapsulated in the second optical transmission port, the second optical component is encapsulated in the first optical transmission port, and the third optical component is encapsulated in the optical receiving port. In this implementation, the first optical component, the second optical component, and the third optical component may be integrated in the first housing, thereby implementing integration of the first optical component, the second optical component, and the third optical component in the optical communication device, and implementing integration of a communication function and a visualization function of the optical communication device.

Based on the sixth aspect, in one possible implementation manner, the optical communication device further includes a second housing and a third housing; the second optical transmission channel and the third optical transmission channel are optical transmission channels arranged on the second shell; the first optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the third shell; the fourth light transmission channel is arranged between the second shell and the third shell; the first coupler is arranged at the junction of the second optical transmission channel and the third optical transmission channel, and the second coupler is arranged at the junction of the first optical transmission channel and the fourth optical transmission channel; the second shell is provided with a first light transmitting port communicated with the second light transmission channel and a light receiving port communicated with the third light transmission channel; the third shell is provided with a second optical transmission port communicated with the first optical transmission channel; the first optical component is encapsulated in the second optical transmission port, the second optical component is encapsulated in the first optical transmission port, and the third optical component is encapsulated in the optical receiving port.

In this implementation, the second optical component and the third optical component may be integrated in the second housing, and the second housing and the first optical component may be integrated in the third housing, so as to integrate the first optical component, the second optical component, and the third optical component in the optical communication device, and to implement integration of a communication function and a visualization function of the optical communication device.

In a possible implementation manner according to any one of the fourth to sixth aspects, the first optical transmission channel is a first optical fiber, the second optical transmission channel is a second optical fiber, the third optical transmission channel is a third optical fiber, the fourth optical transmission channel is a fourth optical fiber, and the fifth optical transmission channel is a fifth optical fiber. In the implementation manner, the first optical component, the second optical component, the third optical component, the first coupler and the second coupler can be connected through optical fibers, so that the first optical component is integrated in the optical communication device, and the communication function and the visual function of the optical communication device are integrated.

With reference to any one of the fourth to sixth aspects, one possible implementation manner of the present invention is that the second wavelength optical signal and the fourth wavelength optical signal are both communication optical signals.

Based on the first aspect or the third aspect, in a possible implementation manner, the second wavelength optical signal and the third wavelength optical signal are both communication optical signals.

Based on the second aspect, in one possible implementation manner, the third wavelength optical signals are all communication optical signals.

In one possible implementation manner, the first optical component and the second optical component are packaged in a same coaxial shell (TO-CAN) according TO any one of the first aspect TO the third aspect.

In this implementation, the first optical component and the second optical component in the optical communication device may be packaged in the same coaxial enclosure. For example, the first optical component and the second optical component are packaged in the same coaxial tube shell, so that the visible light or near infrared light and communication light in the same coaxial tube shell are integrated.

With reference to any one of the fourth to sixth aspects, in one possible implementation manner, the first optical component and the second optical component are packaged in the same coaxial tube shell; alternatively, the first optical component and the third optical component are packaged in the same coaxial tube shell; alternatively, the second optical component and the third optical component are packaged in the same coaxial package.

In this implementation, any two optical components of the first optical component, the second optical component, and the third optical component in the optical communication device may be packaged in the same coaxial shell. For example, the first optical component and the second optical component are packaged in the same coaxial tube shell, so that the visible light or near infrared light and communication light in the same coaxial tube shell are integrated. For example, the first optical component and the third optical component are packaged in the same coaxial tube, so that the visible light or near infrared light and communication light in the same coaxial tube shell are integrated. For example, the second optical component and the third optical component are packaged in the same coaxial tube shell, so that the communication optical transceiver in the same coaxial tube shell is realized.

In one possible implementation manner, the first optical component includes a first Laser Diode (LD), the second optical component includes a second laser diode, and the third optical component includes an avalanche photodiode (avalanche photo diode, APD).

Based on the first aspect, in one possible implementation manner, the first optical component includes a first laser diode, and the second optical component includes a second laser diode.

Based on the second aspect, in one possible implementation manner, the first optical component includes a first laser diode, and the second optical component includes an avalanche photodiode.

Based on the third aspect, in one possible implementation manner, the first optical component includes a first laser diode, and the second optical component includes a second laser diode and an avalanche photodiode.

In one possible implementation manner, the first optical component includes a first laser diode LD, and an anode of the first laser diode is connected to a power supply pin of the second optical component through a soft-hard combination board or a soft board.

In this implementation, the power pin of the second optical component is connected to one end of the soft and hard combination board or flexible board, and the positive electrode of the first laser diode is connected to the other end of the soft and hard combination board or flexible board. The power is supplied to the first optical assembly by taking power from the power supply pins of the second optical assembly through the soft and hard combination board or the soft board. There is no need to change the form of a single board in an optical network device (e.g., OLT or ONU in which the optical communication apparatus is deployed).

In a possible implementation manner of the first to sixth aspects, the first optical component further includes a power locking structure, the power locking structure is connected to the first laser diode, and the power locking structure is used to control the power of the first wavelength optical signal output by the first laser diode.

In this implementation manner, since the power of the optical signal that can be identified by the human eye is limited, the power of the optical signal with the first wavelength can be locked by the power locking structure, so that the human eye can be ensured to be able to implement the optical signal of the visible light or the near infrared light, and the visual management of the ODN network is implemented. Further, the power of the first wavelength optical signal is locked, which is beneficial to prolonging the service life of the optical communication device. For example, the optical communication device is integrated in a chip, and the power of the first wavelength optical signal is locked within a constant value or a range, which is beneficial to prolonging the service life of the chip.

In one possible implementation manner, the power locking structure includes a backlight photodiode, a metal-oxide-semiconductor field-effect transistor (MOS) transistor, an operational amplifier, a first resistor, a second resistor, a third resistor, and a fourth resistor;

The drain electrode of the MOS tube is connected with the cathode of the first laser diode, the grid electrode of the MOS tube is connected with the output port of the operational amplifier, the source electrode of the MOS tube is connected with one end of the first resistor, and the other end of the first resistor is grounded;

the negative electrode of the backlight photodiode is connected with the power supply pin, the positive electrode of the backlight photodiode is connected with one end of the second resistor in parallel with the negative electrode input port of the operational amplifier, and the other end of the second resistor is grounded;

one end of the third resistor and one end of the fourth resistor are connected with the positive input port of the operational amplifier in parallel, the other end of the third resistor is connected with the power supply pin, and the other end of the fourth resistor is grounded.

In this implementation, one possible circuit configuration of the power lock structure is provided, and the first laser diode is driven together by the low-driving-capability operational amplifier and the MOS transistor. The power locking structure realizes the power control of the first wavelength optical signal output by the first laser diode by utilizing a negative feedback loop formed by optical coupling between the first laser diode and the backlight photodiode.

In one possible implementation manner, the power locking structure includes a backlight photodiode, an operational amplifier, a first resistor, a second resistor, a third resistor, and a fourth resistor;

One end of the first resistor is connected with the cathode of the first laser diode, and the other end of the first resistor is connected with the output port of the operational amplifier;

the negative electrode of the backlight photodiode is connected with a power supply pin, the positive electrode of the backlight photodiode is connected with one end of a second resistor in parallel with the negative electrode input port of the operational amplifier, and the other end of the second resistor is grounded;

In this implementation, another possible circuit configuration of the power lock structure is provided, the first laser diode being directly driven by an operational amplifier with a high driving capability. The power locking structure realizes the power control of the first wavelength optical signal output by the first laser diode by utilizing a negative feedback loop formed by optical coupling between the first laser diode and the backlight photodiode.

In one possible implementation manner, the power locking structure further includes a capacitor, one end of the capacitor is connected to the output port of the operational amplifier, and the other end of the capacitor is connected to the negative input port of the operational amplifier.

In this implementation, a capacitance is connected between the output port and the negative input port of the operational amplifier, thereby preventing the operational amplifier from self-oscillation.

A seventh aspect of the present application provides an optical network device, including an optical communication apparatus as in the technical solution of any one of the first aspect to the sixth aspect.

Alternatively, in some possible embodiments, the optical network device may be an OLT or an ONU.

Drawings

Fig. 1 is a schematic diagram of a network structure of a PON scenario according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an optical transceiver according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of an optical transmitting assembly and an optical receiving assembly of the embodiment of the present application using a coaxial package;

fig. 4 is a schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 5 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 6 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 7 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 8 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 9 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

Fig. 10 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 11 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

FIG. 12 is a schematic view of a first housing according to an embodiment of the present application;

fig. 13 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 14 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 15 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 16 is another schematic structural view of an optical communication apparatus according to an embodiment of the present application;

fig. 17 is another schematic structural diagram of an optical communication apparatus according to an embodiment of the present application;

fig. 18 is another schematic structural diagram of an optical communication apparatus according to an embodiment of the present application;

fig. 19 is another schematic structural view of an optical communication apparatus according to an embodiment of the present application;

fig. 20 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 21 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 22 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

fig. 23 is another schematic structural view of an optical communication apparatus according to an embodiment of the present application;

fig. 24 is another schematic structural diagram of an optical communication device according to an embodiment of the present application;

FIG. 25 is a schematic diagram of a power lock structure according to an embodiment of the present application;

fig. 26 is another schematic diagram of a power lock structure according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides an optical communication device and optical network equipment. The optical communication device integrates a first optical component and a second optical component, wherein the first optical component is used for transmitting a first wavelength optical signal, and the first wavelength optical signal is a visible light signal or a near infrared light signal. The first wavelength optical signal may detect whether an optical fiber in the ODN network is occupied, idle, or broken. Therefore, the automatic detection of the optical fibers in the ODN network is realized, and the automatic visual management of the ODN network is realized. The second optical component is used for transmitting the second wavelength optical signal and/or receiving the third wavelength optical signal. And carrying service data in the second wavelength optical signal and the third wavelength optical signal. Thereby realizing the integration of the communication function and the visualization function of the optical communication device.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein.

Concepts related to the embodiments of the present application are described below:

passive optical network (passive optical network, PON): a passive optical network refers to an optical fiber distribution network (optical distribution network, ODN) between an optical line terminal (optical line terminal, OLT) and an optical network unit (optical network unit, ONU), without any active electronic equipment.

The technical solution of the embodiment of the present application may be applied to compatibility between various passive optical network (passive optical network, PON) systems, including, for example, next-generation PON (NG-PON), NG-PON1, NG-PON2, gigabit PON (gigabit-capable PON, GPON), 10gigabit per second PON (10gigabit per second PON,XG-PON), symmetrical 10gigabit passive optical network (10-gigabit-capable symmetric passive optical network, XGS-PON), ethernet PON (Ethernet PON, EPON), 10gigabit per second EPON (10gigabit per second EPON,10G-EPON), next-generation EPON, NG-EPON), wavelength division multiplexing (wavelenth-division multiplexing, WDM) PON, time-and wavelength-division stacked multiplexing (TWDM) PON, point-to-point (P2P) WDM PON (P2P-WDM PON), asynchronous-transfer mode PON (asynchronous transfer mode PON, APON), broadband PON (BPON), etc., as well as 25gigabit per second PON (25gigabit per second PON,25G-PON), 50gigabit per second PON (50gigabit per second PON,50G-PON), 100gigabit per second PON (100gigabit per second PON,100G-PON), 25gigabit per second EPON (25gigabit per second EPON,25G-EPON), 50gigabit per second EPON (50gigabit per second EPON,50G-EPON), 100gigabit per second EPON (100gigabit per second EPON,100G-EPON), and other rates of GPON, EPON, etc.

Fiber distribution network (optical distribution network, ODN): the ODN is a PON device based fiber-to-the-home optical cable network. The function of the optical network unit is to provide an optical transmission channel between the OLT and the ONU.

Wavelength division multiplexing (wavelength division multiplexing, WDM): wavelength division multiplexing is a technology of converging two or more optical carrier signals (carrying various information) with different wavelengths together at a transmitting end through a multiplexer (also called a combiner) and coupling the signals into the same optical fiber of an optical line for transmission; at the receiving end, the optical carriers of various wavelengths are separated by a demultiplexer (also known as a demultiplexer) and then further processed by an optical receiver to recover the original signal. This technique of transmitting two or more different wavelength optical signals simultaneously in the same optical fiber is known as wavelength division multiplexing.

An emission light component: the function of the emitting optical component is to convert the electric signal into an optical signal and input the optical signal into an optical fiber for transmission.

A light receiving assembly: the function of the receiving optical component is to receive the optical signal transmitted by the optical fiber and convert the optical signal into an electric signal.

And the light receiving and transmitting assembly comprises: mainly comprises an emitting light component and a receiving light component.

Referring to fig. 1, the present application is mainly applied to a passive optical network (passive optical network, PON), and under the overall situation that the optical network is fully popularized, a huge number of communication devices, such as OLT and ONUs, are needed, and the related communication devices mainly include optical modules (may also be referred to as optical communication devices) and a board and a frame where the optical modules are placed, where each optical module corresponds to one ODN and serves a certain number of users (each ONU represents one user). As a key structure in the optical network, the optical modules in the OLT and the ONU are responsible for performing the tasks of photoelectric conversion and transmission on the network signals, which is a basis for enabling the entire network to communicate normally.

In the technical solution of the present application, the optical communication device may include a unidirectional optical component, for example, a transmitting optical component or a receiving optical component, and may also include a bidirectional optical component, for example, a transmitting optical component and a receiving optical component. The specific application is not limited.

A schematic structure of a possible transceiver module is described below with reference to fig. 2.

Referring to fig. 2, an important component in the optical module is a transceiver module, and the transceiver module is used to transmit and receive an optical signal. As can be seen from fig. 2, the transceiver module includes a housing 201, a transmitting module 202 embedded in the housing 201, a receiving module 203, a WDM structure 204 (combiner or demultiplexer) arranged in the housing 201, and an optical fiber connection ferrule 205 and an optical fiber 206 connected to the ends of the housing 201. Wherein the emitting optical component 202 is used to convert the electrical signal into an optical signal and input the optical signal into the optical fiber 206 for transmission. The function of the receiving optical module 203 is to receive the optical signal transmitted by the optical fiber and convert the optical signal into an electrical signal, and in general, since the wavelengths of the transmitted and received light are different, a WDM structure 204 needs to be disposed in a metal housing to separate the two wavelengths, and the WDM structure 204 functions as follows: light of some wavelengths is transmitted while light of other wavelengths is reflected. The optical transmission path is shown by the solid arrows in fig. 2, and the light from the transmitting optical component 202 is transmitted in a straight line through the WDM structure 204 and then enters the optical fiber 206 for transmission; the optical receiving path is shown by the dashed arrow in fig. 2, and the optical signal transmitted by the optical fiber 206 is reflected when passing through the WDM structure 204, and the receiving optical component 203 is located on the reflected optical path, so as to implement the receiving of the optical signal.

The transceiver module shown in fig. 2 includes the optical fiber connection ferrule 205 and the optical fiber 206, and in practical application, the transceiver module may not include the optical fiber connection ferrule 205 and the optical fiber 206.

Alternatively, the different optical components may be packaged in the form of a coaxial shell CAN (TO-CAN). The following describes the packaging of the coaxial packages, taking the example that the transmitting optical component and the receiving optical component may be packaged in the form of coaxial packages (TO-CAN).

Referring to fig. 3, the transmitting optical component and the receiving optical component may be packaged in a coaxial tube shell, and are formed by combining a metal base 1 with pins and a cap 6 with a lens, and a Laser Diode (LD) 4 and a Photodiode (PD) 2 are placed on the metal base 1 according to a certain form. The pins on the metal base 1 are respectively connected with the signal electrodes on the LD4 and the transimpedance amplifier (trans-impedance amplifier, TIA) by gold wires, so that external electric signals can be transmitted to the LD4 for electro-optical conversion. The package further comprises a carrier 3, a heat sink 5 and a window 7. In general, the pins and the substrate are separated by glass cement, the pins and the substrate are electrically in an isolation state, the whole substrate is used for making a ground wire plane, and the pins are connected with the outside through a special pin connected with the substrate, and the various connections can be realized by adopting gold wire welding. The transmitting optical component and the receiving optical component are connected with peripheral circuits through pins for receiving and transmitting, and then are arranged in the optical module shell, so that the optical module structure is formed.

In PON networks, normal upstream or downstream communication can be performed between the ONT and the OLT, but it is not known which fibers in the ODN are occupied, idle or broken. At present, a red light pen is mainly used for accessing an optical fiber so as to judge whether the optical fiber breaks or not, so that the visual management of the ODN is realized. However, the red light pen is independent of the PON network as a fiber breakage detection means, and cannot realize automatic visual management of the ODN network. Furthermore, the red light pen can only be used for detecting whether the optical fiber breaks, and the optical fiber detection function is single.

The application provides a corresponding technical scheme, which is used for detecting whether an optical fiber in an ODN network is occupied, idle or broken through a first wavelength optical signal emitted by a first optical component in an optical communication device. The optical fiber detection method and the optical fiber detection device realize automatic detection of the optical fiber in the ODN, realize automatic visual management of the ODN, and have more comprehensive optical fiber detection function. And the second optical component is used for transmitting the second wavelength optical signal and/or receiving the third wavelength optical signal, and the second wavelength optical signal and the third wavelength optical signal bear business data. Thereby realizing the integration of the communication function and the visualization function of the optical communication device.

The following describes the technical scheme of the present application in connection with specific embodiments.

An embodiment of the present application provides an optical communication apparatus, including: the first optical module, the second optical module, the first coupler, and the first fiber optic connection port.

The first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, and the third end of the first coupler is connected with the first optical fiber connection port.

The first optical component is used for transmitting a first wavelength optical signal. The first wavelength optical signal is a visible light signal or a near infrared light signal. The second optical component is used for sending the second wavelength optical signal and/or receiving the third wavelength optical signal, and service data are carried in the second wavelength optical signal and the third wavelength optical signal.

The first wavelength optical signal is used for optical fiber detection. It is understood that the wavelength of the first wavelength optical signal may be a wavelength of light that can be recognized by the human eye. For example, visible light has a wavelength between 360 nm and 830 nm and near infrared light has a wavelength between 780 nm and 1100 nm. The wavelength of the first wavelength optical signal may be one of visible light or near infrared light. For example, the wavelength of the first wavelength optical signal is 650 nanometers.

Optionally, the first wavelength optical signal is used to detect whether the optical fiber is idle, occupied, or broken. Thereby realizing the visual management of the ODN network. For example, the optical communication device is disposed in the OLT, and the first wavelength optical signal may be used to detect whether an optical fiber between the OLT and the ODN network is idle, occupied, or broken. For example, the optical communication device is disposed in the ONU, and the first wavelength optical signal may be used to detect whether an optical fiber between the ONU and the ODN network is idle, occupied, or broken.

The second wavelength optical signal and the third wavelength optical signal may be communication optical signals. For example, the wavelength of the communication light is 1260 nm to 1600 nm. For example, the second wavelength optical signal has a wavelength between 1260 nm and 1330 nm and the third wavelength optical signal has a wavelength between 1340 nm and 1600 nm. Alternatively, the second wavelength optical signal has a wavelength between 1340 nanometers and 1600 nanometers and the third wavelength optical signal has a wavelength between 1260 nanometers and 1330 nanometers.

Alternatively, the second optical component may be a transmitting optical component, a receiving optical component, or a transceiving optical component.

For example, the optical communication device is disposed in the OLT, and the second wavelength optical signal may be a downstream communication optical signal sent by the OLT to the ONU. The third wavelength optical signal is an upstream communication optical signal that the OLT receives from the ONU transmission. Thereby realizing the integration of the communication function and the visualization function of the optical communication device.

For example, the optical communication device is disposed in the ONU, and the second wavelength optical signal may be an upstream communication optical signal sent by the ONU to the OLT. The third wavelength optical signal is a downstream communication optical signal that the ONU receives from the OLT. Thereby realizing the integration of the communication function and the visualization function of the optical communication device.

Optionally, the optical communication device further comprises a first coupler and a first fiber optic connection port. The first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, and the third end of the first coupler is connected with the first optical fiber connection port.

Optionally, the first optical component is connected to the first end of the first coupler through a first optical transmission channel, the second optical component is connected to the second end of the first coupler through a second optical transmission channel, and the third end of the first coupler is connected to the first optical fiber connection port through a third optical transmission channel. In the embodiments that follow, the function of the first coupler will be described in connection with the function of the second optical component.

It should be noted that, alternatively, the coupling mode of the first coupler may be a wavelength division coupling mode, a power division coupling mode, or a polarization division coupling mode, which is not limited in this application.

Alternatively, the first coupler may be a WDM structure or a prism.

Two possible implementations of the first, second and third optical transmission channels are described below.

Mode 1: the first optical transmission channel is a first optical fiber, the second optical transmission channel is a second optical fiber, and the third optical transmission channel is a third optical fiber.

The following description will be made with reference to the optical communication device shown in fig. 4. Fig. 4 is a schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 4, the optical communication apparatus 400 includes a first optical component 401, a second optical component 402, a first coupler 403, and a first optical fiber connection port 404.

The first optical assembly 401 is connected to a first end of a first coupler 403 by a first optical fiber 405. The second optical assembly 402 is connected to a second end of the first coupler 403 by a second optical fiber 406. The third end of the first coupler 403 is connected to the first fiber connection port 404 by a third optical fiber 407.

The first optical component 401, the second optical component 402 and the first coupler 403 are connected by optical fibers, and this connection mode may be referred to as an out-coupling connection.

Alternatively, the first optical component 401 may be connected to the first end of the first coupler 403 through a fiber optic connection port in the first optical component 401, and the second optical component 402 may be connected to the second end of the first coupler 403 through a fiber optic connection port in the second optical component 402.

The function of the first coupler 403 is described below in connection with the type of second optical component 402.

Case 1: the second optical component 402 is a transceiver optical component.

Specifically, the first optical component 401 is configured to send a first wavelength optical signal to the first coupler 403 through the first optical fiber 405. The second optical component 402 is configured to transmit a second wavelength optical signal to the first coupler 403 via the second optical fiber 406 and receive a third wavelength optical signal via the second optical fiber 406. The first coupler 403 is configured to receive a first wavelength optical signal from the first optical component 401 via a first optical fiber 405 and a second wavelength optical signal from the second optical component 403 via a second optical fiber 406; and then the first wavelength optical signal and the second wavelength optical signal are coupled to obtain a combined signal, and the combined signal is sent to the first optical fiber connection port 407 through the third optical fiber 407. Thereby realizing that the optical communication apparatus 400 emits the combined signal through the optical fiber connected to the first optical fiber connection port 404. The first coupler 403 is configured to receive the third wavelength optical signal from the first optical fiber connection port 404 via the third optical fiber 407 and transmit the third wavelength optical signal to the second optical component 402 via the second optical fiber 406.

Case 2: the second optical component 402 is an emitting optical component.

Specifically, the first optical component 401 is configured to send a first wavelength optical signal to the first coupler 403 through the first optical fiber 405. The second optical assembly 402 is configured to transmit a second wavelength optical signal to the first coupler 403 via a second optical fiber 406. The first coupler 403 is configured to receive a first wavelength optical signal sent from the first optical component 401 through the first optical fiber 405 and a second wavelength optical signal from the second optical component 403 through the second optical fiber 406; and then the first wavelength optical signal and the second wavelength optical signal are coupled to obtain a combined signal, and the combined signal is sent to the first optical fiber connection port 407 through the third optical fiber 407. Thereby realizing that the optical communication apparatus 400 emits the combined signal through the optical fiber connected to the first optical fiber connection port 404.

Case 3: the second optical component 402 is a receiving optical component.

Specifically, the first optical component 401 is configured to send a first wavelength optical signal to the first coupler 403 through the first optical fiber 405. The second optical assembly 402 is configured to receive a third wavelength optical signal via a second optical fiber 406. The first coupler 403 is configured to receive the third wavelength optical signal from the first optical fiber connection port 404 via the third optical fiber 407 and transmit the third wavelength optical signal to the second optical component 402 via the second optical fiber 406.

Mode 2: the first optical transmission channel, the second optical transmission channel and the third optical transmission channel are optical transmission channels arranged in the first housing, which can be understood as a pipe space in the first housing for transmission of optical signals.

The following description will be made with reference to the optical communication device shown in fig. 5. Fig. 5 is a schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 5, the optical communication apparatus 500 includes a first optical module 501, a second optical module 502, a first coupler 503, a first optical fiber connection port 504, and a first housing 505.

The first casing 505 is provided with a first optical transmission channel 506, a second optical transmission channel 507, and a third optical transmission channel 508. The first coupler 503 is disposed at the junction of the first optical transmission channel 506 and the second optical transmission channel 507. The first housing 505 is provided with a first optical transmission port communicating with the first optical transmission channel 506. The first optical component 501 is packaged in a first optical transmission port.

When the second optical module 502 is a transceiver module, the first housing 505 is provided with an optical transceiver port that communicates with the second optical transmission channel 507. The second optical component 502 is packaged in the optical transceiver port.

Specifically, the first optical component 501 is configured to send a first wavelength optical signal to the first coupler 503 through the first optical transmission channel 506. The second optical component 502 is configured to transmit a second wavelength optical signal to the first coupler 503 via the second optical transmission channel 506 and receive a third wavelength optical signal via the second optical transmission channel 506. The first coupler 503 is configured to couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and send the combined signal to the first optical fiber connection port 504 through the third optical transmission channel 508. The first coupler 503 is configured to split the first wavelength optical signal and the third wavelength optical signal from the first optical fiber connection port 504 such that the first wavelength optical signal is transmitted to the first optical fiber connection port 504 through the third optical transmission channel 508 and the third wavelength optical signal is transmitted to the second optical assembly 502 through the second optical transmission channel 506.

For this implementation, two possible configurations of the optical communication device will be described in detail below using the first coupler 503 as a first wdm configuration, and reference will be made to the description related to fig. 6 and fig. 7.

When the second optical module 502 is an emission optical module, the first housing 505 is provided with a second optical transmission port communicating with the second optical transmission channel 507. The second optical component 502 is packaged in a second optical transmission port.

Specifically, the first optical component 501 is configured to send a first wavelength optical signal to the first coupler 503 through the first optical transmission channel 506. The second optical component 502 is configured to transmit a second wavelength optical signal to the first coupler 503 via a second transmission channel 507. The first coupler is configured to receive the first wavelength optical signal through the first optical transmission channel 506 and the second wavelength optical signal through the second optical transmission channel 507, couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and send the combined signal to the first optical fiber connection port 504 through the third optical transmission channel 508.

For this implementation, two possible configurations of the optical communication device will be described in detail below using the first coupler 503 as a first wdm configuration, and reference will be made specifically to the description related to fig. 8 and fig. 9.

When the second optical module 502 is a light receiving module, the first casing 505 is provided with a light receiving port communicating with the second light transmission channel 507. The second optical component 502 is packaged in the light receiving port.

Specifically, the first optical component 501 is configured to send a first wavelength optical signal to the first coupler 503 through the first optical transmission channel 506. The second optical component 502 is configured to receive the third wavelength optical signal through the second optical transmission channel 507. The first coupler 503 is configured to receive the third wavelength optical signal from the first optical fiber connection port 504 through the third optical transmission channel 508 and transmit the third wavelength optical signal to the second optical component 502 through the second optical transmission channel 507, and to receive the first wavelength optical signal through the first optical transmission channel 506 and transmit the first wavelength optical signal to the first optical fiber connection port 504 through the third optical transmission channel 508.

For this implementation, two possible configurations of the optical communication device will be described in detail below with respect to the first coupler 503 as a first wdm configuration, and reference will be made to the following descriptions of fig. 10 and 11.

In one possible implementation, the first housing may be a coaxial envelope, i.e. the first optical component and the second optical component are integrated in the same coaxial envelope. Thereby realizing the double-emission integration of visible light or near infrared light and communication light in the same coaxial tube shell.

For example, the first optical component includes a first laser diode. When the second optical component is an emitting optical component, the second optical component comprises a second laser diode, and the first laser diode and the second laser diode are packaged in the same coaxial tube shell.

For example, the first optical component includes a first laser diode. When the second optical component is a receiving optical component, the second optical component includes an avalanche photodiode. The first laser diode and the avalanche photodiode are packaged in the same coaxial package.

In another possible implementation, the first housing is a metal housing.

For example, as shown in fig. 12, the metal casing 1201 may be a metal square casing, with six sides of the metal square casing being perforated with corresponding circular openings 1201. The first optical component is positioned at the opening of the first surface, and the second optical component is positioned at the opening of the second surface. The first fiber optic connection port may be located at the opening of the third face.

For example, the second optical component is a transceiver optical component. The technical scheme of the application can be understood as adding the first optical component at the openings of the four remaining surfaces in the metal shell on the basis of the conventional bidirectional optical component, so as to form the three-way optical component. Thereby realizing the communication function and the visual function of the optical communication device and integrating the communication function and the visual function.

In this implementation, the first optical component may be understood as a visible light emitting coaxial envelope or a near infrared light emitting coaxial envelope, and the second optical component may be a communication light emitting coaxial envelope, or a communication light receiving coaxial envelope, or a communication light transceiving coaxial envelope. Two coaxial shells are integrated in the first shell.

Two possible configurations of the optical communication device will be described below with reference to fig. 6 and 7, in which the second optical component is a transceiver optical component and the first coupler is a first wavelength division multiplexing structure.

Fig. 6 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 6, the optical communication apparatus 600 includes a first optical module 601, a transceiver module 602, a first wavelength division multiplexing structure 603, a first optical fiber connection port 604, and a first housing 605.

The first housing 605 is provided with a first optical transmission channel 606, a second optical transmission channel 607, and a third optical transmission channel 608. The first wavelength division multiplexing structure 603 is disposed at the junction of the first optical transmission channel 606 and the second optical transmission channel 607.

The first housing 605 is provided with a first optical transmission port communicating with the first optical transmission channel 606 and an optical transceiver port communicating with the second optical transmission channel 607. The first optical component 601 is encapsulated in the first optical transmission port. The transceiver 602 is packaged in the optical transceiver port.

The first optical component 601 is connected to a first wavelength division multiplexing structure 603 via a first optical transmission channel 606. The light receiving and emitting component 602 is connected to the first wavelength division multiplexing structure 603 through the second optical transmission channel 607. The first wavelength division multiplexing structure 603 is connected to the first optical fiber connection port 604 through a third optical transmission channel 608.

The first optical component 601 is configured to emit a first wavelength optical signal, which is emitted to the first wavelength division multiplexing structure 603 through the first optical transmission channel 606. The transceiver module 602 is configured to transmit a second wavelength optical signal and receive a third wavelength optical signal through the second optical transmission channel 607, where the second wavelength optical signal is transmitted to the first wavelength division multiplexing structure 603 through the second optical transmission channel 607.

The first wavelength division multiplexing structure 603 is configured to reflect the first wavelength optical signal to the first optical fiber connection port 604, transmit the second wavelength optical signal to the first optical fiber connection port 604, and transmit the third wavelength optical signal to the transceiver module 602.

Specifically, the first wavelength division multiplexing structure 603 combines the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmits the combined signal to the first optical fiber connection port 604 through the third optical transmission channel 608. The first wavelength division multiplexing structure 603 receives the third wavelength optical signal from the first optical fiber connection port 604 through the third optical transmission channel 608, and transmits the third wavelength optical signal to the transceiver module 602 through the second optical transmission channel 607.

Fig. 7 is a schematic diagram of another structure of an optical communication device according to an embodiment of the present application. The optical communication apparatus shown in fig. 7 is similar in structure to the optical communication apparatus shown in fig. 6, except that: the first optical component 701 and the transceiver optical component 702 are interchanged. In particular, an optical communication apparatus 700 is shown in fig. 7.

In the implementation shown in fig. 7, the first optical component 701 is configured to emit a first wavelength optical signal that is emitted to the first wavelength division multiplexing structure 703 through the first optical transmission channel 706. The transceiver module 702 is configured to transmit a second wavelength optical signal and receive a third wavelength optical signal through the second optical transmission channel 707, where the second wavelength optical signal is transmitted to the first wavelength division multiplexing structure 703 through the second optical transmission channel 707.

The first wavelength division multiplexing structure 703 is configured to transmit a first wavelength optical signal to the first optical fiber connection port 704, transmit a second wavelength optical signal to the first optical fiber connection port 704, and reflect a third wavelength optical signal to the transceiver module 702.

Specifically, the first wavelength division multiplexing structure 703 combines the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmits the combined signal to the first optical fiber connection port 704 through the third optical transmission channel 708. The first wavelength division multiplexing structure 703 receives the third wavelength optical signal from the first optical fiber connection port 704 through the optical transmission channel 708 and reflects the third wavelength optical signal. The transceiver 602 is located on the reflected light path, so that the third wavelength optical signal is sent to the transceiver 702 through the second optical transmission channel 707.

As can be seen from fig. 6 and fig. 7, in the technical solutions of the present application, the optical transceiver and the first optical module may be integrated in the optical communication device. Therefore, the detection of the optical fiber of the ODN network is realized through the first wavelength optical signal emitted by the first optical component. For example, whether an optical fiber in the ODN network is occupied, idle, broken, or the like is detected by the first wavelength optical signal. The optical fiber in the ODN is automatically detected, and the automatic visual management of the ODN is realized. The second optical component is a transceiver optical component, and the transceiver optical component is used for transmitting a second wavelength optical signal and receiving a third wavelength optical signal, wherein the second wavelength optical signal and the third wavelength optical signal are communication optical signals. Thereby realizing the integration of the communication function and the visualization function of the optical communication device.

Two possible configurations of the optical communication device are described below in connection with fig. 8 and 9, where the second optical component is an emitting optical component and the first coupler is a first wavelength division multiplexing structure in the optical communication device.

Fig. 8 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 8, an optical communication apparatus 800 includes a first optical module 801, an emitting optical module 802, a first wavelength division multiplexing structure 803, a first optical fiber connection port 804, and a first housing 805.

The first housing 805 is provided with a first optical transmission channel 806, a second optical transmission channel 807, and a third optical transmission channel 808. The first wavelength division multiplexing structure 803 is disposed at the junction of the first optical transmission channel 806 and the second optical transmission channel 807.

The first housing 805 is provided with a first optical transmission port communicating with the first optical transmission channel 806 and a second optical transmission port communicating with the second optical transmission channel 807. The first optical component 801 is encapsulated in a first optical transmit port. An emission optical component 802 is packaged at the second optical transmission port.

The first optical component 801 is connected to the first wavelength division multiplexing structure 803 by a first optical transmission channel 806, and the transmitting optical component 802 is connected to the first wavelength division multiplexing structure 803 by a second optical transmission channel 807. The first wavelength division multiplexing structure 803 is connected to the first optical fiber connection port 804 through a third optical transmission channel 808.

The first optical component 801 is configured to emit a first wavelength optical signal that is transmitted to the first wavelength division multiplexing structure 803 via a first optical transmission channel 806. The transmitting optical component 802 is configured to transmit a second wavelength optical signal, which is transmitted to the first wavelength division multiplexing structure 803 through the second optical transmission channel 807. The first wavelength division multiplexing structure 803 is configured to combine the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmit the combined signal to the first optical fiber connection port 804 through the third optical transmission channel 808. Specifically, the first wavelength division multiplexing structure 803 is configured to reflect the first wavelength optical signal to the first optical fiber connection port 804, and transmit the second wavelength optical signal to the first optical fiber connection port 804.

Fig. 9 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. The optical communication apparatus shown in fig. 9 is similar in structure to the optical communication apparatus shown in fig. 8, except that: the first light assembly 901 and the emitting light assembly 902 are interchanged. Specifically, an optical communication apparatus 900 is shown in fig. 9.

In the implementation shown in fig. 9, the first optical component 901 is configured to emit a first wavelength optical signal that is emitted to the first wavelength division multiplexing structure 903 through the first optical transmission channel 906. The transmitting component 902 is configured to transmit a second wavelength optical signal, which is transmitted to the first wavelength division multiplexing structure 903 via the second optical transmission channel 907.

The first wavelength division multiplexing structure 903 is configured to transmit the first wavelength optical signal to the first optical fiber connection port 904, and reflect the second wavelength optical signal to the first optical fiber connection port 904.

Specifically, the first wavelength division multiplexing structure 903 combines the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmits the combined signal to the first optical fiber connection port 904 through the third optical transmission channel 908.

Two possible configurations of the optical communication device will be described below with reference to fig. 10 and 11, in which the second optical component is a receiving optical component and the first coupler is a first wavelength division multiplexing structure.

Fig. 10 is a schematic diagram of another structure of an optical communication device according to an embodiment of the present application. Referring to fig. 10, the optical communication apparatus 1000 includes a first optical module 1001, a receiving optical module 1002, a first wavelength division multiplexing structure 1003, a first optical fiber connection port 1004, and a first housing 1005.

The first housing 1005 is provided with a first optical transmission channel 1006, a second optical transmission channel 1007, and a third optical transmission channel 1008. The first wdm structure 1003 is disposed at the junction of the first optical transmission channel 1006 and the second optical transmission channel 1007.

The first housing 1005 is provided with a first optical transmission port communicating with the first optical transmission channel 1006 and a reception optical port communicating with the second optical transmission channel 1007. The first optical component 1001 is packaged in the first optical transmission port. The transceiver 1002 is packaged in the receiving port.

The first optical component 1001 is connected to the first wavelength division multiplexing structure 1003 via a first optical transmission channel 1006, and the receiving optical component 1002 is connected to the first wavelength division multiplexing structure 1003 via a second optical transmission channel 1007. The first wavelength division multiplexing structure 1003 is connected to the first optical fiber connection port 1004 through the third optical transmission channel 1008.

The first optical component 1001 is configured to emit a first wavelength optical signal that is emitted to the first wavelength division multiplexing structure 1003 via the first optical transmission channel 1006. The receiving optical component 1002 is configured to receive the third wavelength optical signal through the second optical transmission channel 1007.

The first wavelength division multiplexing structure 1003 is configured to reflect the first wavelength optical signal to the first optical fiber connection port 1004 and transmit the third wavelength optical signal to the receiving optical component 1002.

Specifically, the first wavelength division multiplexing structure 1003 reflects the first wavelength optical signal to the first optical fiber connection port 1004. The first wavelength division multiplexing structure 1003 receives the third wavelength optical signal from the first optical fiber connection port 1004 through the third optical transmission channel 1008, and transmits the third wavelength optical signal to the reception optical component 1002 through the second optical transmission channel 1007.

Fig. 11 is a schematic diagram of another structure of an optical communication device according to an embodiment of the present application. The optical communication apparatus shown in fig. 11 is similar in structure to the optical communication apparatus shown in fig. 10, except that: the first optical assembly 1101 and the receiving optical assembly 1102 are interchanged. As shown in particular in fig. 11.

In the implementation shown in fig. 11, the first optical assembly 1101 is configured to emit a first wavelength optical signal that is emitted to the first wavelength division multiplexing structure 1103 by the first optical transmission channel 1106. The receiving component 1102 is configured to receive the third wavelength optical signal via the second optical transmission channel 1107.

The first wavelength division multiplexing structure 1103 is configured to reflect the first wavelength optical signal to the first optical fiber connection port 1104 and transmit the third wavelength optical signal to the receiving optical assembly 1102.

Specifically, the first wavelength division multiplexing structure 1103 transmits the first wavelength optical signal to the first optical fiber connection port 1104 via the third optical transmission channel 1108. The first wavelength division multiplexing structure 1103 receives the third wavelength optical signals from the first optical fiber connection port 1104 via a third optical transmission channel 1108 and transmits the third wavelength optical signals to the receiving assembly 1102 via a second optical transmission channel 1107.

As can be seen from fig. 8 to fig. 11, in the technical solutions of the present application, the optical communication device may integrate the unidirectional optical component and the first optical component. The first optical component is used for transmitting a first wavelength optical signal, and the first wavelength optical signal is a visible light signal or a near infrared light signal. Thereby realizing the detection of the optical fiber by the first wavelength optical signal emitted by the first optical component in the optical communication device. Automatic visual management of the ODN network is achieved. And the second optical component is used for transmitting the second wavelength optical signal or receiving the third wavelength optical signal. The second wavelength optical signal and the third wavelength optical signal may be communication optical signals, thereby realizing the integration of the communication function and the visualization function of the optical communication device.

For example, the optical communication device is disposed in an OLT that emits a first wavelength optical signal through a first optical component in the optical communication device, which can be used to detect an optical fiber between the OLT and an ODN network (e.g., an optical splitter). For example, the optical communication device is disposed at an ONU, and the ONU emits a first wavelength optical signal through a first optical component in the optical communication device, where the first wavelength optical signal can be used to detect an optical fiber (which may include at least one optical fiber) between the ONU and an ODN network (e.g., an optical splitter).

Further, if the red light leakage on a certain optical fiber is obvious after the first optical component emits the first wavelength optical signal, it is known that the optical fiber is broken. After the first optical component emits the first wavelength optical signal, if the optical fiber is flashed at the port on the splitter side corresponding to the optical fiber, it represents that the optical fiber is occupied. If the fiber is not illuminated at the port on the splitter side, it is indicated that the fiber is idle.

An embodiment of the present application provides another optical communication apparatus, including: the optical fiber connector comprises a first optical component, a second optical component, a third optical component, a first coupler, a second coupler and a first optical fiber connection port.

The coupling mode of the second coupler is similar to that of the first coupler, and reference may be made to the description of the coupling mode of the first coupler.

Several possible ways of connecting the various devices in the optical communication apparatus are described below in connection with the second optical assembly and the functionality of the second optical assembly.

The first connection mode is as follows: the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, the third end of the first coupler is connected with the first end of the second coupler, the second end of the second coupler is connected with the third optical component, and the third end of the second coupler is connected with the first optical fiber connection port.

Optionally, the first optical component is connected to the first end of the first coupler through a first optical transmission channel, the second optical component is connected to the second end of the first coupler through a second optical transmission channel, the third end of the first coupler is connected to the first end of the second coupler through a third optical transmission channel, the second end of the second coupler is connected to the third optical component through a fourth optical transmission channel, and the third end of the second coupler is connected to the first optical fiber connection port through a fifth optical transmission channel.

And the connection mode II is as follows: the second optical component is connected with the first end of the first coupler, the third optical component is connected with the second end of the first coupler, the third end of the first coupler is connected with the first end of the second coupler, the second end of the second coupler is connected with the first optical component, and the third end of the second coupler is connected with the first optical fiber connection port.

Optionally, the second optical component is connected to the first end of the first coupler through the first optical transmission channel, the third optical component is connected to the second end of the first coupler through the second optical transmission channel, the third end of the first coupler is connected to the first end of the second coupler through the third optical transmission channel, the second end of the second coupler is connected to the first optical component through the fourth optical transmission channel, and the third end of the second coupler is connected to the first optical fiber connection port through the fifth optical transmission channel.

In the first or second connection mode, optionally, the second optical component is a transmitting optical component, and the third optical component is a receiving optical component. The second optical component is used for transmitting a second wavelength optical signal. The third optical component is used for receiving the optical signal with the fourth wavelength.

For the second wavelength optical signal, please refer to the related description above. The fourth wavelength optical signal is a communication optical wavelength optical signal. For example, the wavelength of the fourth wavelength optical signal falls within 1260 nm to 1600 nm. For example, the fourth wavelength optical signal is between 1340 nanometers and 1600 nanometers.

For example, the optical communication device is disposed in the OLT, and the second wavelength optical signal may be a downstream communication optical signal transmitted by the OLT to the ONU, and the fourth wavelength optical signal is an upstream communication optical signal transmitted by the OLT to be received by the OLT.

For example, the optical communication device is disposed in the ONU, and the second wavelength optical signal may be an upstream communication optical signal sent by the ONU to the OLT. The fourth wavelength optical signal may be a downstream communication optical signal that the ONU receives from the OLT.

In the first or second connection mode, optionally, the second optical component is a receiving optical component, and the third optical component is an emitting optical component. The second optical component is used for receiving the optical signal with the third wavelength. The third optical component is used for transmitting the fifth wavelength optical signal.

For the third wavelength optical signal, please refer to the related description above, the fifth wavelength optical signal is a communication optical signal. For example, the fifth wavelength optical signal falls within 1260 nm to 1600 nm. For example, the fifth wavelength optical signal has a wavelength between 1260 nanometers and 1330 nanometers.

For example, the optical communication device is disposed in the OLT, and the fifth wavelength optical signal may be a downstream communication optical signal transmitted by the OLT to the ONU, and the third wavelength optical signal is an upstream communication optical signal transmitted by the OLT to the ONU.

For example, the optical communication device is disposed in an ONU, and the fifth wavelength optical signal may be an upstream communication optical signal that the ONU transmits to the OLT. The third wavelength optical signal may be a downstream communication optical signal that the ONU receives from the OLT.

Two possible implementations of the first to fifth optical transmission channels are described below.

Implementation 1: the first optical transmission channel is a first optical fiber, the second optical transmission channel is a second optical fiber, the third optical transmission channel is a third optical fiber, the fourth optical transmission channel is a fourth optical fiber, and the fifth optical transmission channel is a fifth optical fiber.

Based on the first connection mode, the first to fifth optical transmission channels are described below in connection with the optical communication device shown in fig. 13. Fig. 13 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 13, the optical communication apparatus 1300 includes a first optical component 1301, a second optical component 1302, a third optical component 1303, a first coupler 1304, a second coupler 1305, and a first optical fiber connection port 1306.

The first optical assembly 1301 is connected to a first end of a first coupler 1304 by a first optical fiber 1307. The second optical assembly 1302 is coupled to a second end of the first coupler 1304 by a second optical fiber 1308. The third end of the first coupler is connected to the first end of the second coupler 1305 through a third optical fiber 1310. The second end of the second coupler is connected to a third optical component 1303 by a fourth optical fiber 1309. The third end of the second coupler is connected to the first fiber optic connection port 1306 through a fifth optical fiber 1311.

The first optical component 1301, the second optical component 1302 and the third optical component 1303 are connected by optical fibers, which may be referred to as an outcoupling connection.

Alternatively, the first optical assembly 1301 may be connected to the first end of the first coupler 1304 through a fiber optic connection port in the first optical assembly 1301. The second optical assembly 1302 may be coupled to the second end of the first coupler 1304 through a fiber optic connection port in the second optical assembly 1302. The third optical component 1303 may be connected to the second end of the second coupler 1305 through an optical fiber connection port in the third optical component 1303.

The function of the first coupler 1304 and the second coupler 1305 is described below in connection with the type of second optical assembly and the third optical assembly.

Case 1: the second optical component is a transmitting optical component, and the third optical component is a receiving optical component.

As shown in fig. 13, the first optical component 1301 is configured to transmit a first wavelength optical signal to the first coupler 1304 via the first optical fiber 1307. The second optical assembly 1302 is configured to transmit a second wavelength optical signal through a second optical fiber 1308. The third optical assembly is configured to receive a fourth wavelength optical signal via a fourth optical fiber 1309. The first coupler 1304 is configured to couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and send the combined signal to the second coupler 1305 through the third optical fiber 1310. The second coupler 1305 is configured to receive the combined signal through the third optical fiber 1310 and transmit the combined signal to the first optical fiber connection port 1306 through the fifth optical fiber 1311. The second coupler 1305 is configured to receive the fourth wavelength optical signal from the first optical fiber connection port 1306 through the fifth optical fiber 1311 and transmit the fourth wavelength optical signal to the third optical assembly 1303 through the fourth optical fiber 1309.

Case 2: the second optical component is a receiving optical component, and the third optical component is an emitting optical component.

As shown in fig. 13, the first optical component 1301 is configured to transmit a first wavelength optical signal to the first coupler 1304 via the first optical fiber 1307. The second optical assembly 1302 receives a third wavelength optical signal through a second optical fiber 1308. The third optical component 1303 is configured to transmit a fifth wavelength optical signal to the second coupler 1305 through the fourth optical fiber 1309. The first coupler 1304 is configured to receive the first wavelength optical signal via a first optical fiber 1307 and to transmit the first wavelength optical signal via a third optical fiber 1310 to a second coupler 1305. The first coupler 1304 is configured to receive the third wavelength optical signal transmitted by the second coupler 1305 through the third optical fiber 1310, and transmit the third wavelength optical signal to the second optical assembly 1302 through the second optical fiber 1308. The second coupler 1305 is configured to receive the fifth wavelength optical signal through the fourth optical fiber 1309 and the first wavelength optical signal through the third optical fiber 1310, couple the first wavelength optical signal and the fifth wavelength optical signal to obtain a combined signal, and send the combined signal to the first optical fiber connection port 1306 through the fifth optical fiber 1311. The second coupler 1305 is configured to receive the third wavelength optical signal from the first fiber connection port 1306 through the fifth optical fiber 1311 and transmit the third wavelength optical signal to the first coupler 1304 through the third optical fiber 1310.

Based on the second connection mode, the first to fifth optical transmission channels are described below in connection with the optical communication device shown in fig. 14. Fig. 14 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 14, the optical communication apparatus 1400 includes a first optical component 1401, a second optical component 1402, a third optical component 1403, a first coupler 1404, a second coupler 1405, and a first optical fiber connection port 1406.

The second optical assembly 1402 is connected to a first end of a first coupler 1404 by a first optical fiber 1407. Third optical subassembly 1403 is coupled to a second end of first coupler 1404 via a second optical fiber 1408. The third end of the first coupler 1404 is connected to the first end of the second coupler 1405 through a third optical fiber 1410. The second end of the second coupler 1405 is connected to the first optical assembly 1401 by a fourth optical fiber 1409. The third end of the second coupler 1405 is connected to the first fiber connection port 1406 via a fifth fiber 1411.

The first optical subassembly 1401, the second optical subassembly 1402, and the third optical subassembly 1403 are coupled by optical fibers, which may be referred to as an outcoupling connection.

Alternatively, the first optical assembly 1401 may be connected to the second end of the second coupler 1405 through a fiber optic connection port in the first optical assembly 1401. The second optical assembly 1402 may be connected to the first end of the first coupler 1404 through a fiber optic connection port in the second optical assembly 1402. Third optical component 1403 may be connected to the second end of first coupler 1404 through a fiber optic connection port in third optical component 1403.

The function of the first coupler 1404 and the second coupler 1405 will be described below in connection with the types of second optical components and third optical components.

As shown in fig. 14, the first optical component 1401 is configured to transmit a first wavelength optical signal to the second coupler 1405 through the fourth optical fiber 1409. The second optical assembly 1402 is configured to transmit a second wavelength optical signal to the first coupler 1403 via the first optical fiber 1407. Third optical subassembly 1403 is configured to receive a fourth wavelength optical signal via second optical fiber 1408. The first coupler 1404 is configured to receive a second wavelength optical signal via the first optical fiber 1407 and transmit the second wavelength optical signal to the second coupler 1405 via the third optical fiber 1410. The first coupler 1404 is configured to receive the fourth wavelength optical signal transmitted by the first coupler 1404 via the third optical fiber 1410 and transmit the fourth wavelength optical signal to the third optical component 1403 via the second optical fiber 1408. The second coupler 1405 is configured to receive the second wavelength optical signal through the third optical fiber 1410 and the first wavelength optical signal through the fourth optical fiber 1409, couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and send the combined signal to the first optical fiber connection port 1406 through the fifth optical fiber 1411. The second coupler 1405 is configured to receive the fourth wavelength optical signal from the first optical fiber connection port 1406 via the fifth optical fiber 1411 and transmit the fourth wavelength optical signal to the first coupler 1404 via the third optical fiber 1410.

As shown in fig. 14, the first optical component 1401 is configured to transmit a first wavelength optical signal to the second coupler 1405 through the fourth optical fiber 1409. The second optical module 1402 is configured to receive a third wavelength optical signal via the first optical fiber 1407. Third optical subassembly 1403 is used to transmit a fifth wavelength optical signal to first coupler 1404 via second optical fiber 1408. The first coupler 1404 is configured to receive a third wavelength optical signal via a third optical fiber 1410 and transmit the third wavelength optical signal to the second optical assembly 1402 via a first optical fiber 1407. The first coupler 1404 is configured to receive the fifth wavelength optical signal via the second optical fiber 1408 and transmit the fifth wavelength optical signal to the second coupler 1405 via the third optical fiber 1410. The second coupler 1405 is configured to receive the fifth wavelength optical signal through the third optical fiber 1410 and the first wavelength optical signal through the fourth optical fiber 1409, couple the first wavelength optical signal and the fifth wavelength optical signal to obtain a combined signal, and send the combined signal to the first wavelength optical fiber connection port 1406 through the fifth optical fiber 1411. The second coupler 1405 is configured to receive the third wavelength optical signal from the first optical fiber connection port 1406 through the fifth optical fiber 1411 and transmit the third wavelength optical signal to the first optical module 1401 through the fourth optical fiber 1409.

Mode 2: the first to fifth light transmission channels are light transmission channels provided in the first housing.

In this mode 2, the optical transmission channel can be understood as a pipe space within the first housing for transmission of an optical signal.

Based on the first connection mode, the optical communication device provided in the present application is described below with reference to fig. 15. Fig. 15 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 15, an optical communication apparatus 1500 includes: a first optical component 1501, a second optical component 1502, a third optical component 1503, a first coupler 1504, a second coupler 1505, a first fiber optic connection port 1506, and a first housing 1507.

The first housing 1507 is provided therein with an optical transmission channel 1508, an optical transmission channel 1509, an optical transmission channel 1511, an optical transmission channel 1510, and an optical transmission channel 1512. The first coupler 1504 is disposed at the junction of the optical transmission channel 1508 and the optical transmission channel 1509. The second coupler 1505 is disposed at the junction of the optical transmission channel 1511 and the optical transmission channel 1510.

The first housing 1507 is provided with a first light transmission port communicating with the light transmission channel 1508. The first optical component 1501 is packaged in a first optical transmit port.

When the second optical component 1502 is an emitting optical component, the third optical component 1503 is a receiving optical component, the first housing 1507 is provided with a second optical transmitting port communicating with the optical transmission channel 1509 and an optical receiving port communicating with the optical transmission channel 1510. The second optical component 1502 is packaged in the second optical transmission port, and the third optical component 1503 is packaged in the optical reception port.

Specifically, first optical component 1501 is configured to transmit a first wavelength optical signal to first coupler 1504 via optical transmission channel 1508. The second optical assembly 1502 is configured to transmit a second wavelength optical signal to the first coupler 1504 via the optical transmission channel 1509. The third optical component 1503 is configured to receive and transmit a fourth wavelength optical signal via the optical transmission channel 1510. The first coupler 1504 is configured to couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and send the combined signal to the second coupler 1505 through the optical transmission channel 1511. The second coupler 1505 is configured to receive the combined signal via the optical transmission channel 1511 and to transmit the combined signal to the first fiber connection port 1506 via the optical transmission channel 1512. The second coupler 1505 is configured to receive a fourth wavelength optical signal from the first fiber optic connection port 1506 via the optical transmission channel 1512 and to transmit the fourth wavelength optical signal to the third optical component 1503 via the optical transmission channel 1510.

When the second optical component 1502 is a receiving optical component, the third optical component 1503 is an emitting optical component, the first housing 1507 is provided with a light receiving port communicating with the light transmission channel 1509 and a second light transmitting port communicating with the light transmission channel 1510. The second optical component 1502 is packaged in the optical receiving port, and the third optical component 1503 is packaged in the second optical transmitting port.

Specifically, first optical component 1501 is configured to transmit a first wavelength optical signal to first coupler 1504 via optical transmission channel 1508. The second optical assembly 1502 is configured to receive a third wavelength optical signal through the optical transmission channel 1509. The third optical component 1503 is configured to transmit a fifth wavelength optical signal to the second coupler 1505 via the optical transmission channel 1510. The first coupler 1504 is configured to receive a first wavelength optical signal via an optical transmission channel 1508 and transmit the first wavelength optical signal to the second coupler 1505 via an optical transmission channel 1511. The first coupler 1504 is configured to receive the third wavelength optical signal through the optical transmission channel 1511 and transmit the third wavelength optical signal to the second optical assembly 1502 through the optical transmission channel 1509. The second coupler 1505 is configured to receive the first wavelength optical signal through the optical transmission channel 1511 and the fifth wavelength optical signal through the optical transmission channel 1510, and couple the first wavelength optical signal and the fifth wavelength optical signal to obtain a combined signal. The second coupler 1505 then transmits the combined signal to the first fiber optic connection port 1506 via the optical transmission path 1512. The second coupler 1505 is configured to receive a third wavelength optical signal from the first fiber optic connection port 1506 via the optical transmission channel 1512 and to transmit the third wavelength optical signal to the first coupler 1504 via the optical transmission channel 1511.

For this implementation, two possible configurations of the optical communication device will be described in detail below with the first coupler 1504 as a first wdm structure and the second coupler 1505 as a second wdm structure, and refer to the related descriptions of fig. 19 to 22.

Based on the second connection mode, the optical communication device provided in the present application is described below with reference to fig. 16. Fig. 16 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 16, the optical communication apparatus 1600 includes: a first optical assembly 1601, a second optical assembly 1602, a third optical assembly 1603, a first coupler 1604, a second coupler 1605, a first fiber optic connection port 1606, and a first housing 1607.

The first housing 1607 is provided therein with an optical transmission channel 1609, an optical transmission channel 1608, an optical transmission channel 1611, an optical transmission channel 1610, and an optical transmission channel 1612.

The first coupler 1604 is disposed at the junction of the optical transmission channel 1609 and the optical transmission channel 1608. The second coupler 1605 is disposed at the junction of the optical transmission channel 1611 and the optical transmission channel 1610.

The first housing 1607 is provided with a first optical transmission port communicating with the optical transmission channel 1610, and the first optical module 1601 is packaged on the first optical transmission port.

When the second optical component 1602 is an emitting optical component and the third optical component 1603 is a receiving optical component, the first housing 1607 is provided with a second optical transmitting port in communication with the optical transmission channel 1609 and an optical receiving port in communication with the optical transmission channel 1608. The second optical component 1602 is packaged in the second optical transmit port and the third optical component 1603 is packaged in the optical receive port.

Specifically, the first optical component 1601 is configured to transmit a first wavelength optical signal to the second coupler 1605 through the optical transmission channel 1610. The second optical assembly 1602 is configured to transmit a second wavelength optical signal to the first coupler 1604 via the optical transmission channel 1609. The third optical component 1603 is configured to receive a fourth wavelength optical signal via the optical transmission channel 1608. The first coupler 1604 is for transmitting a second wavelength optical signal to the second coupler 1605 via the optical transmission channel 1611. The first coupler 1604 receives the fourth wavelength optical signal via the optical transmission channel 1611 and transmits the fourth wavelength optical signal to the third optical component 1603 via the optical transmission channel 1608. The second coupler 1605 is configured to receive the fourth wavelength optical signal from the first fiber optic connection port 1606 via the optical transmission channel 1612 and to transmit the fourth wavelength optical signal to the first coupler 1604 via the optical transmission channel 1611. The second coupler 1605 is configured to receive the first wavelength optical signal via the optical transmission channel 1610 and the second wavelength optical signal via the optical transmission channel 1611, couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmit the first wavelength optical signal to the first optical fiber connection port 1606 via the optical transmission channel 1612.

For this implementation, two possible configurations of the optical communication device will be described in detail below with the first coupler 1604 as the first wdm structure and the second coupler 1605 as the second wdm structure, and refer to the related descriptions of fig. 23-24.

In a possible implementation, the first housing shown in fig. 15 or fig. 16 may be a coaxial housing, that is, the first optical component, the second optical component, and the third optical component are integrated in the same coaxial housing. Thereby realizing the integration of visible light or near infrared light and communication light in the same coaxial tube shell.

For example, the first optical component comprises a first laser diode, and when the second optical component is a transmitting optical component and the third optical component is a receiving optical component, the second optical component comprises a second laser diode and the third optical component comprises an avalanche photodiode. Alternatively, when the second optical component is a receiving optical component and the third optical component is an emitting optical component, the second optical component includes an avalanche photodiode and the third optical component includes a second laser diode. The first laser diode, the second laser diode and the avalanche photodiode are packaged in the same coaxial package.

In another possible implementation, the first housing shown in fig. 15 or fig. 16 is a metal housing.

In this implementation, the first optical component may be understood as a visible light emitting coaxial envelope or a near infrared light emitting coaxial envelope. The second optical component is a communication light emitting coaxial tube shell, and the third optical component is a communication light receiving coaxial tube shell. Alternatively, the second optical component is a communication light receiving coaxial tube shell, and the third optical component is a communication light emitting coaxial tube shell. The three coaxial shells are integrated within the first shell.

Mode 3: the first optical transmission channel and the second optical transmission channel are optical transmission channels provided in the second housing. The fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels provided in the third housing. The third light transmission channel is disposed between the second housing and the third housing.

In this mode 3, the first and second light transmission channels can be understood as a pipe space in the first housing, and the fourth and fifth light transmission channels can be understood as a pipe space in the second housing. The third light transmission channel may be understood as a duct space for connecting the second housing with the third housing.

Based on the first connection mode, the optical communication device provided in the present application is described below with reference to fig. 17. Fig. 17 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 17, the optical communication apparatus 1700 includes a first optical module 1701, a second optical module 1702, a third optical module 1703, a first coupler 1704, a second coupler 1705, a first fiber optic connection port 1706, a second housing 1708, and a third housing 1709.

The second housing 1708 is provided with an optical transmission passage 1710 and an optical transmission passage 1711 therein. The second housing 1709 is provided with an optical transmission channel 1713, an optical transmission channel 1712, and an optical transmission channel 1714.

The first coupler 1704 is disposed at the junction of the optical transmission channel 1710 and the optical transmission channel 1711. The second coupler 1705 is disposed at the junction of the optical transmission channel 1713 and the optical transmission channel 1712.

The second housing 1708 is provided with a first optical transmission port communicating with the optical transmission channel 1710, and the first optical module 1701 is packaged in the first optical transmission port.

When the second optical module 1702 is an emitting optical module, the third optical module 1703 is a receiving optical module, a second optical transmitting port communicating with the optical transmission channel 1711 is provided on the second housing 1708, and the second optical module is packaged in the second optical transmitting port. The third housing 1709 is provided with a third light transmitting port communicating with the light transmitting channel 1713 and a light receiving port communicating with the light transmitting channel 1712. The second housing 1708 is packaged in a third optical transmission port and the third optical subassembly 1703 is packaged in the optical reception port.

Specifically, the first optical assembly 1701 is configured to transmit a first wavelength optical signal to the first coupler 1704 via the optical transmission channel 1710. The second optical assembly 1702 is configured to transmit a second wavelength optical signal to the first coupler 1704 via the optical transmission channel 1711. The third optical assembly 1703 is configured to receive a fourth wavelength optical signal via the optical transmission channel 1712. The first coupler 1704 is configured to couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and send the combined signal to the second coupler 1705 through the optical transmission channel 1713. The second coupler 1705 is configured to receive the combined signal via the optical transmission channel 1713 and transmit the combined signal to the first fiber optic connection port 1706 via the optical transmission channel 1714. The second coupler 1705 is configured to receive a fourth wavelength optical signal from the first fiber optic connection port 1706 via the optical transmission channel 1714 and to transmit the fourth wavelength optical signal to the third optical assembly 1703 via the optical transmission channel 1712.

When the second optical module 1702 is a receiving optical module, the third optical module 1703 is an emitting optical module, and the second housing 1708 is provided with a light receiving port communicating with the light transmission channel 1711, and the second optical module is packaged in the light receiving port. The third housing 1709 is provided with an optical transmission/reception port communicating with the optical transmission channel 1713 and a second optical transmission port communicating with the optical transmission channel 1712. The second housing 1708 is packaged in the optical transceiver port, and the third optical module 1703 is packaged in the second optical transmitter port.

Specifically, the first optical assembly 1701 is configured to transmit a first wavelength optical signal to the first coupler 1704 via the optical transmission channel 1710. The second optical module 1702 is configured to receive a third wavelength optical signal through the optical transmission channel 1711. The third optical assembly 1703 is configured to transmit a fifth wavelength optical signal via the optical transmission channel 1712. The first coupler 1704 is configured to transmit the first wavelength optical signal to the second coupler 1705 through the optical transmission channel 1713, receive the third wavelength optical signal transmitted by the second coupler 1705 through the optical transmission channel 1713, and transmit the third wavelength optical signal to the second optical module 1702 through the optical transmission channel 1711. The second coupler 1705 is configured to receive a third wavelength optical signal from the first fiber optic connection port 1706 via the optical transmission channel 1714 and to transmit the third wavelength optical signal to the first coupler 1704 via the optical transmission channel 1713. The second coupler 1705 receives the fifth wavelength optical signal sent by the third optical component 1703 through the optical transmission channel 1712 and receives the first wavelength optical signal through the optical transmission channel 1713, couples the first wavelength optical signal and the fifth wavelength optical signal to obtain a combined signal, and sends the combined signal to the first optical fiber connection port 1706 through the optical transmission channel 1714.

Based on the second connection mode, the optical communication device provided in the present application is described below with reference to fig. 18. Fig. 18 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 18, the optical communication apparatus 1800 includes a first optical assembly 1801, a second optical assembly 1802, a third optical assembly 1803, a first coupler 1804, a second coupler 1805, a first fiber optic connection port 1806, a second housing 1808, and a third housing 1809.

The second housing 1808 has an optical transmission passage 1810 and an optical transmission passage 1811 disposed therein. The third housing 1809 is provided with an optical transmission channel 1813, an optical transmission channel 1812, and an optical transmission channel 1814.

The first coupler 1804 is disposed at the junction of the optical transmission channel 1810 and the optical transmission channel 1811. The second coupler 1805 is disposed at the junction of the optical transmission channel 1813 and the optical transmission channel 1812.

The third housing 1809 is provided with a first optical transmission port in communication with the optical transmission channel 1812, and the first optical assembly 1801 is packaged in the first optical transmission port.

When the second optical assembly 1802 is an emitting optical assembly and the third optical assembly 1803 is a receiving optical assembly, the second housing 1808 is provided with a second optical transmit port in communication with the optical transmit channel 1811 and an optical receive port in communication with the optical transmit channel 1810. The second optical component 1802 is packaged in a second optical transmit port and the third optical component 1803 is packaged in an optical receive port. The third housing 1809 is further provided with an optical transceiver port in communication with the optical transmission channel 1813, and the second housing 1808 is enclosed in the optical transceiver port.

Specifically, the first optical assembly 1801 transmits a first wavelength optical signal to the second coupler 1805 via the optical transmission channel 1812. The second optical assembly 1802 transmits a second wavelength optical signal to the first coupler 1804 through an optical transmission channel 1811. The third optical assembly 1803 receives a fourth wavelength optical signal via an optical transmission channel 1810. The first coupler 1804 is configured to receive a fourth wavelength optical signal via the optical transmission channel 1813 and transmit the fourth wavelength optical signal to the third optical assembly 1803 via the optical transmission channel 1810. The second coupler 1805 is configured to receive a second wavelength optical signal via the optical transmission channel 1813 and to receive a first wavelength optical signal via the optical transmission channel 1812. The second coupler 1805 couples the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and transmits the combined signal to the first optical fiber connection port 1806 through the optical transmission channel 1814. The second coupler 1805 receives the fourth wavelength optical signal from the first fiber optic connection port 1806 via an optical transmission channel 1814 and transmits the fourth wavelength optical signal to the first coupler 1804 via an optical transmission channel 1813.

When the second optical module 1802 is a receiving optical module and the third optical module 1803 is an emitting optical module, a second optical transmitting port communicating with the optical transmission channel 1810 and an optical receiving port communicating with the optical transmission channel 1811 are provided on the second housing 1808. The second optical component 1802 is packaged in an optical receiving port and the third optical component 1803 is packaged in a second optical transmitting port. The third housing 1809 is further provided with an optical transceiver port in communication with the optical transmission channel 1813, and the second housing 1808 is enclosed in the optical transceiver port.

Specifically, the first optical assembly 1801 transmits a first wavelength optical signal to the first coupler 1805 via an optical transmission channel 1812. The second optical module 1802 is configured to receive a third wavelength optical signal through the optical transmission channel 1811. The third optical assembly 1803 transmits a fifth wavelength optical signal to the first coupler 1804 via an optical transmission channel 1810. The first coupler 1804 receives the third wavelength optical signal via the optical transmission channel 1813 and transmits the third wavelength optical signal to the second optical assembly 1802 via the optical transmission channel 1811. The first coupler 1804 receives the fifth wavelength optical signal via an optical transmission channel 1810 and transmits the fifth wavelength optical signal via an optical transmission channel 1813 to the second coupler 1805. The second coupler 1805 receives the fifth wavelength optical signal via the optical transmission channel 1813 and the first wavelength optical signal via the optical transmission channel 1812. The second coupler 1805 couples the first wavelength optical signal and the fifth wavelength optical signal to obtain a combined signal, and transmits the combined signal to the first optical fiber connection port 1806 through the fifth optical transmission channel 1814. The second coupler 1805 receives the third wavelength optical signal from the first fiber optic connection port 1806 via the optical transmission channel 1814 and transmits the third wavelength optical signal to the first coupler 1804 via the optical transmission channel 1813.

In a possible implementation manner, in the optical communication device shown in fig. 17 or fig. 18, the second housing may be a coaxial shell, and the third housing may be a metal housing. Reference is made to the coaxial shells and metal shells as described above and will not be repeated here.

For example, the second optical component is a transmitting optical component and the third optical component is a receiving optical component. The first optical component and the second optical component are packaged in one coaxial tube shell, and the third optical component is packaged in the other coaxial tube shell, so that the visible light or near infrared light and communication light in the same coaxial tube shell are integrated. Alternatively, the first optical component and the third optical component are packaged in one coaxial tube shell, and the second optical component is packaged in the other coaxial tube shell. Thereby realizing the integration of the visible light or near infrared light and communication light in the same coaxial tube shell. Alternatively, the second optical component and the third optical component are packaged in one coaxial tube shell, and the first optical component is packaged in the other coaxial tube shell. Thereby realizing the integration of communication light receiving and transmitting in the same coaxial tube shell.

For example, the first optical component comprises a first laser diode, the second optical component comprises a second laser diode, and the third optical component comprises an avalanche photodiode. The first laser diode and the second laser diode are packaged in the same coaxial package TO. Alternatively, the first laser diode and avalanche photodiode are packaged in the same coaxial package TO. Alternatively, the second laser diode and avalanche photodiode are packaged in the same coaxial package TO.

In another possible implementation manner, in the optical communication device shown in fig. 17 or fig. 18, the second housing and the third housing are both metal housings.

In this implementation, the first optical assembly, the second optical assembly, and the third optical assembly are three coaxial packages.

For example, as shown in fig. 17, the first optical component is a visible light emitting coaxial envelope or a near infrared light emitting coaxial envelope, the second optical component is a communication light emitting coaxial envelope, and the third optical component is a communication light receiving coaxial envelope. The visible light emitting coaxial tube shell or the near infrared light emitting coaxial tube shell and the communication light emitting coaxial tube shell are integrated into a second shell, and the second shell and the communication light receiving coaxial tube shell are integrated into a third shell.

Some possible configurations of the optical communication device are described below with respect to a first wavelength division multiplexing configuration using a first coupler and a second wavelength division multiplexing configuration using a second coupler.

Fig. 19 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 19, an optical communication apparatus 1900 includes: a first optical subassembly 1901, a transmitting optical subassembly 1902, a receiving optical subassembly 1903, a first wavelength division multiplexing structure 1904, a second wavelength division multiplexing structure 1905, a first fiber connection port 1906, and a first housing 1907.

The first housing 1907 is provided with an optical transmission channel 1908, an optical transmission channel 1909, an optical transmission channel 1910, an optical transmission channel 1911, and an optical transmission channel 1912.

The first wdm structure 1904 is disposed at the junction of the optical transmission channel 1908 and the optical transmission channel 1909. The second wdm structure 1905 is disposed at the junction of the optical transmission channel 1910 and the optical transmission channel 1911.

The first housing 1907 is provided with a first light transmitting port communicating with the light transmission channel 1908, a second light transmitting port communicating with the light transmission channel 1909, and a light receiving port communicating with the light transmission channel 1910. The first optical component 1901 is packaged in a first optical transmission port, the transmitting optical component 1902 is packaged in a second optical transmission port, and the receiving optical component 1903 is packaged in an optical reception port.

The first wavelength division multiplexing structure 1904 is capable of reflecting a first wavelength optical signal emitted by the first optical component 1901 to the second wavelength division multiplexing structure 1905 and transmitting a second wavelength optical signal emitted by the emission optical component 1902 to the second wavelength division multiplexing structure 1905. The second wavelength division multiplexing structure 1905 is capable of combining the first wavelength optical signal and the second wavelength optical signal, transmitting to the first optical fiber connection port 1906, and reflecting the fourth wavelength optical signal from the first optical fiber connection port 1906 to the receiving optical component 1903.

Specifically, the first wavelength optical signal sent by the first optical component 1901 is reflected when passing through the first wavelength division multiplexing structure 1904, and is reflected to the second wavelength division multiplexing structure 1905, and the first wavelength optical signal is directly transmitted to the first optical fiber connection port 1906 when passing through the second wavelength division multiplexing structure 1905. The second wavelength optical signal emitted by the emission optical component 1902 is directly transmitted through the first wavelength division multiplexing structure 1904 and transmitted to the second wavelength division multiplexing structure 1905. The second wavelength optical signal is transmitted directly to the first fiber optic connection port 1906 as it passes through the second wavelength division multiplexing structure 1905. The fourth wavelength optical signal transmitted from the first optical fiber connection port 1906 is reflected when passing through the second wavelength division multiplexing structure 1905, and the receiving optical component 1903 is exactly located on the reflected optical path, so as to receive the fourth wavelength optical signal.

Fig. 20 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 20, the optical communication apparatus 2000 includes: a first optical assembly 2001, a transmitting optical assembly 2002, a receiving optical assembly 2003, a first wavelength division multiplexing structure 2004, a second wavelength division multiplexing structure 2005, a first fiber connection port 2006, and a first housing 2007.

Referring to fig. 20, the optical communication apparatus shown in fig. 20 is similar to the optical communication apparatus shown in fig. 19 in that: the positions of the first optical assembly 2001 and the emission optical assembly 2002 are changed. As shown in fig. 20, the first wdm structure 2004 is disposed at the junction of the optical transmission channel 2008 and the optical transmission channel 2009. The second wdm structure 2005 is disposed at the junction of the optical transmission channel 2010 and the optical transmission channel 2011.

The first housing 2007 is provided with a first light transmitting port communicating with the light transmission channel 2008, a second light transmitting port communicating with the light transmission channel 2009, and a light receiving port communicating with the light transmission channel 2010. The first optical component 2001 is packaged in the second optical transmission port, the transmitting optical component 2002 is packaged in the first optical transmission port, and the receiving optical component 2003 is packaged in the optical reception port.

The first wavelength division multiplexing structure 2004 is capable of transmitting the first wavelength optical signal emitted by the first optical component 2001 to the second wavelength division multiplexing structure 2005, and reflecting the second wavelength optical signal emitted by the emission optical component 2002 to the second wavelength division multiplexing structure 2005. The second wavelength division multiplexing structure 2005 is capable of combining the first wavelength optical signal and the second wavelength optical signal, transmitting to the first optical fiber connection port 2006, and reflecting the fourth wavelength optical signal from the first optical fiber connection port 2006 to the receiving optical assembly 2003.

Specifically, the first wavelength optical signal sent by the first optical component 2001 is transmitted when passing through the first wavelength division multiplexing structure 2004 and transmitted to the second wavelength division multiplexing structure 2005, and the first wavelength optical signal is transmitted when passing through the second wavelength division multiplexing structure 2005, so that the first wavelength optical signal is transmitted to the first optical fiber connection port 2006. The second wavelength optical signal emitted by the emission optical component 2002 is reflected when passing through the first wavelength division multiplexing structure 2004, so that the second wavelength optical signal is reflected to the second wavelength division multiplexing structure 2005. The second wavelength optical signal is transmitted directly to the first fiber-optic connection port 2006 as it passes through the second wavelength division multiplexing structure 2005. The fourth wavelength optical signal transmitted from the first optical fiber connection port 2006 is reflected when passing through the second wavelength division multiplexing structure 2005, and the receiving optical component 2003 is just located on the reflected optical path, so as to receive the fourth wavelength optical signal.

Fig. 21 is a schematic view of another embodiment of an optical communication apparatus according to an embodiment of the present application. Referring to fig. 21, an optical communication apparatus 2100 includes: a first optical assembly 2101, a receiving optical assembly 2102, a transmitting optical assembly 2103, a first wavelength division multiplexing structure 2104, a second wavelength division multiplexing structure 2105, a first fiber optic connection port 2106 and a first housing 2107.

The first housing 2107 is provided with an optical transmission channel 2108 to an optical transmission channel 2112. The first housing is provided with a first optical transmission port communicating with the optical transmission channel 2108, an optical reception port communicating with the optical transmission channel 2109, and a second optical transmission port communicating with the optical transmission channel 2110. The first optical assembly 2101 is packaged at a first optical transmit port and the receiving optical assembly 2102 is packaged at an optical receive port. The transmitting optical assembly 2103 is packaged at the second optical transmission port.

The first wavelength division multiplexing structure 2104 is disposed at the junction between the optical transmission channels 2108 and 2109, and the second wavelength division multiplexing structure 2105 is disposed at the junction between the optical transmission channels 2110 and 2111.

The first wavelength division multiplexing structure 2104 is capable of transmitting first wavelength optical signals emitted by the first optical assembly 2101 to the second wavelength division multiplexing structure 2105 and reflecting fourth wavelength optical signals from the second wavelength division multiplexing structure 2105 to the receiving optical assembly 2102. The second wavelength division multiplexing structure 2105 is capable of combining the first wavelength optical signal and the second wavelength optical signal and transmitting to the first optical fiber connection port 2106, and transmitting the fourth wavelength optical signal from the first optical fiber connection port 2106 to the first wavelength division multiplexing structure 2104.

Specifically, the first wavelength optical signal emitted by the first optical component 2101 is directly transmitted through the first wavelength division multiplexing structure 2104 and transmitted to the second wavelength division multiplexing structure 2105. The fourth wavelength optical signal incoming from the first optical fiber connection port 2106 is directly transmitted through the second wavelength division multiplexing structure 2105 and transmitted to the first wavelength division multiplexing structure 2104. The fourth wavelength optical signal is reflected when passing through the first wavelength division multiplexing structure 2104, and the receiving optical component 2102 is located on the reflected optical path, so that the receiving of the fourth wavelength optical signal is realized. The second wavelength optical signal emitted by the transmitting optical assembly 2103 is reflected when passing through the second wavelength division multiplexing device 2105 and is reflected to the first optical fiber connection interface 2106.

Fig. 22 is a schematic view of another embodiment of an optical communication apparatus according to an embodiment of the present application. Referring to fig. 22, the optical communication apparatus 2200 includes: a first optical assembly 2201, a receiving optical assembly 2202, a transmitting optical assembly 2203, a first wavelength division multiplexing structure 2204, a second wavelength division multiplexing structure 2205, a first fiber connection port 2206, and a first housing 2207.

The first housing 2207 is provided with an optical transmission passage 2208 to an optical transmission passage 2212. The first housing is provided with a first optical transmission port communicating with the optical transmission channel 2208, and an optical reception port communicating with the optical transmission channel 2209, and a second optical transmission port communicating with the optical transmission channel 2210. The first optical component 2201 is packaged in a first optical transmit port and the receiving optical component 2202 is packaged in an optical receive port. The transmitting optical component 2203 is packaged in a second optical transmission port.

The first wavelength division multiplexing structure 2204 is disposed at the junction between the optical transmission channels 2208 and 2209, and the second wavelength division multiplexing structure 2205 is disposed at the junction between the optical transmission channels 2210 and 2211.

The first wavelength division multiplexing structure 2204 is capable of reflecting a first wavelength optical signal from the first optical component 2201 to the second wavelength division multiplexing structure 2205 and transmitting a third wavelength optical signal from the second wavelength division multiplexing structure 2205 to the receiving optical component 2202.

The second wavelength division multiplexing structure 2005 is capable of combining the first wavelength optical signal and the fifth wavelength optical signal to obtain a combined signal, and transmitting the combined signal to the first optical fiber connection port 2206, and transmitting the third wavelength optical signal from the first optical fiber connection port 2206 to the first wavelength division multiplexing structure 2204.

Specifically, the first wavelength optical signal emitted by the first optical component 2201 is reflected when passing through the first wavelength division multiplexing structure 2204 and is reflected to the second wavelength division multiplexing structure 2205. The first wavelength optical signal is transmitted directly through the second wavelength division multiplexing structure 2205 and transmitted to the first fiber connection port 2206. The third wavelength optical signal transmitted from the first optical fiber connection port 2206 is directly transmitted through the second wavelength division multiplexing structure 2205 and transmitted to the first wavelength division multiplexing structure 2204. The third wavelength optical signal is directly transmitted when passing through the first wavelength division multiplexing structure 2204 and transmitted to the receiving optical component 2202, so as to realize the receiving of the third wavelength optical signal by the receiving optical component 2202. The second wavelength optical signal emitted by the emitting optical component 2203 is reflected when passing through the second wavelength division multiplexing structure 2205 and is reflected to the first optical fiber connection port 2206.

Fig. 23 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 23, the optical communication apparatus 2300 includes: a first optical component 2301, a transmitting optical component 2302, a receiving optical component 2303, a first wavelength division multiplexing structure 2304, a second wavelength division multiplexing structure 2305, a first optical fiber connection port 2306 and a first housing 2307.

The first housing 2307 is provided with an optical transmission channel 2308 to an optical transmission channel 2312. The first housing is provided with a first optical transmission port communicating with the optical transmission channel 2308, a second optical transmission port communicating with the optical transmission channel 2309, and an optical reception port communicating with the optical transmission channel 2310. The first optical component 2301 is packaged in a first optical transmission port, and the emitting optical component 2302 is packaged in a second optical transmission port. The receiving optical element 2303 is packaged in the optical receiving port.

The first wavelength division multiplexing structure 2304 is disposed at the junction between the optical transmission channel 2309 and the optical transmission channel 2310, and the second wavelength division multiplexing structure 2305 is disposed at the junction between the optical transmission channel 2308 and the optical transmission channel 2311.

The first wavelength division multiplexing structure 2304 is capable of reflecting the second wavelength optical signal emitted from the emitting optical element 2302 to the second wavelength division multiplexing structure 2305 and transmitting the fourth wavelength optical signal from the second wavelength division multiplexing structure 2305 to the receiving optical element 2303. The second wavelength division multiplexing structure 2305 is capable of transmitting the fourth wavelength optical signal from the first fiber optic connection port 2306 to the first wavelength division multiplexing structure 2304. The second wavelength division multiplexing structure 2305 combines the second wavelength optical signal and the first wavelength optical signal from the first optical element 2301 to obtain a combined signal, and transmits the combined signal to the first optical fiber connection port 2306.

Specifically, the second wavelength optical signal emitted by the emitting optical component 2302 is reflected when passing through the first wavelength division multiplexing structure 2304, and is reflected to the second wavelength division multiplexing structure 2305. The fourth wavelength optical signal transmitted from the first optical fiber connection port 2306 is directly transmitted when passing through the second wavelength division multiplexing structure 2305 and transmitted to the first wavelength division multiplexing structure 2304, and the fourth wavelength optical signal is directly transmitted when passing through the first wavelength division multiplexing structure 2304, and the receiving optical component 2303 is just in the transmitting optical path, so that the receiving of the fourth wavelength optical signal is realized. The first wavelength optical signal from the first optical component 2301 is reflected when passing through the second wavelength division multiplexing structure 2305 and is reflected to the first optical fiber connection port 2306. The second wavelength optical signal is directly transmitted through the second wavelength division multiplexing structure 2305 and transmitted to the first optical fiber connection port 2306.

Fig. 24 is another schematic structural diagram of an optical communication device according to an embodiment of the present application. Referring to fig. 24, the optical communication apparatus 2400 includes: a first optical assembly 2401, a transmitting optical assembly 2402, a receiving optical assembly 2403, a first wavelength division multiplexing structure 2404, a second wavelength division multiplexing structure 2405, a first fiber connection port 2406, and a first housing 2407.

The first housing 2407 is provided with light-transmitting channels 2408 to 2412. The first housing 2407 is provided with a first light-transmitting port communicating with the light-transmitting channel 2408, a second light-transmitting port communicating with the light-transmitting channel 2409, and a light-receiving port communicating with the light-transmitting channel 2410. The first optical component 2401 is packaged in a first optical transmission port, and the emitting optical component 2402 is packaged in a second optical transmission port. The receiving optical component 2403 is packaged in a light receiving port.

The first wavelength division multiplexing structure 2404 is disposed at the junction between the optical transmission channel 2409 and the optical transmission channel 2410, and the second wavelength division multiplexing structure 2405 is disposed at the junction between the optical transmission channel 2408 and the optical transmission channel 2411.

The first wavelength division multiplexing structure 2404 is capable of transmitting the fifth wavelength optical signal emitted from the emission optical component 2402 to the second wavelength division multiplexing structure 2405, and reflecting the third wavelength optical signal from the second wavelength division multiplexing structure 2405 to the reception optical component 2403. The second wavelength division multiplexing structure 2405 is capable of transmitting the third wavelength optical signal from the first fiber connection port 2406 to the first wavelength division multiplexing structure 2404. The second wavelength division multiplexing structure 2405 may combine the fifth wavelength optical signal with the first wavelength optical signal from the first optical component 2401 to obtain a combined signal, and send the combined signal to the first optical fiber connection port 2406.

Specifically, the fifth wavelength optical signal emitted by the light emitting component 2402 is directly transmitted when passing through the first wavelength division multiplexing structure 2404, and is transmitted to the second wavelength division multiplexing structure 2405. The first optical component 2401 transmits a first wavelength optical signal to the second wavelength division multiplexing structure 2405. The second wavelength division multiplexing structure 3405 performs a combination of the first wavelength optical signal and the fifth wavelength optical signal to obtain a combined signal, and sends the combined signal to the first optical fiber connection port 2406. The third wavelength optical signal transmitted from the first optical fiber connection port 2406 is directly transmitted when passing through the second wavelength division multiplexing structure 2405 and transmitted to the first wavelength division multiplexing structure 2404, the third wavelength optical signal is reflected when passing through the first wavelength division multiplexing structure 2404, and the receiving optical component 2403 is just on the reflected optical path, so that the receiving of the third wavelength optical signal is realized.

As can be seen from fig. 19 to 24, in the technical solutions of the present application, the optical communication device may integrate the transmitting optical component, the receiving optical component and the first optical component. Therefore, the detection of the optical fiber of the ODN network is realized through the first wavelength optical signal emitted by the first optical component. For example, the first wavelength optical signal may be used to detect whether an optical fiber in the ODN network is occupied, idle, or broken. Automatic visual management of the ODN network is achieved. And the optical signals transmitted by the transmitting optical component and the optical signals received by the receiving optical component bear service data, thereby integrating the communication function and the visual function of the optical communication device.

One possible implementation of the present application for powering the first optical component is described below.

Optionally, in the case that the optical communication device includes a first optical component and a second optical component, the optical communication device further includes a flexible board or a rigid-flexible board, and the first optical component includes a first laser diode. The positive pole of the first laser diode is connected with the power supply pin of the second optical component through the soft and hard combination board or the soft board.

The power supply pin of the second optical component is understood to be a pin of the second optical component which is able to supply a voltage or a current to the first optical component. Alternatively, pins capable of providing voltage or current in the second optical component can be preferentially selected, and signals of the pins are not affected when the pins are led to the soft and hard combination board or the soft board.

The pin is connected with one end of the soft and hard combination board or the soft board, and the positive electrode of the first laser diode is connected with the other end of the soft and hard combination board or the soft board. The power is supplied to the first optical assembly by taking power from the power supply pins of the second optical assembly through the soft and hard combination board or the soft board. There is no need to change the form of a single board in an optical network device (e.g., OLT or ONU in which the optical communication apparatus is deployed). For example, there are tens of OLTs in a Passive Optical LAN (POL) park scenario, and there is a great need for a scenario in which the form of a board of the OLT is not changed, and the function of visualizing the ODN network is implemented without changing the form of the board.

The negative electrode of the first laser diode can be directly grounded, or can be connected with one end of the first resistor, and the other end of the first resistor is grounded.

For example, as shown in fig. 25, the power supply pin 2510 of the second optical component is a 3.3V (volt) power supply pin, and the positive electrode of the first laser diode 2501 is connected to this power supply pin 2510.

Optionally, in the case that the optical communication device includes the first optical component, the second optical component, and the third optical component, the optical communication device further includes a soft and hard board or a flexible board, and the first optical component includes a first laser diode. The positive pole of the first laser diode is connected with the power supply pin of the second optical component or the power supply pin of the third optical component through the soft and hard combination board or the soft board.

Reference may be made to the previous description regarding the power pin of the third optical component with respect to the power pin of the second optical component.

The scheme that the first optical component is connected with the power supply pin of the second optical component or the power supply pin of the third optical component through the soft and hard combination board or the soft board is used for supplying power to the first optical component is introduced. In practical application, the first optical component may also be connected to a power supply pin on the board, so as to realize that the board supplies power to the first optical component.

The technical scheme of the present application will be mainly described below by taking an implementation manner in which the anode of the first laser diode is connected to the power supply pin of the second optical component as an example.

Optionally, the first optical assembly further comprises a power locking structure connected to the first laser diode, the power locking structure being configured to control the power of the first wavelength optical signal output by the first laser diode.

Because the power of the optical signal which can be identified by human eyes is limited, the power of the optical signal with the first wavelength can be locked through the power locking structure, so that the human eyes can realize the optical signal of the visible light or the near infrared light, and the visual management of the ODN is realized. Further, the power of the first wavelength optical signal is locked, which is beneficial to prolonging the service life of the optical communication device. For example, the optical communication device is integrated in a chip, and the power of the first wavelength optical signal is locked within a constant value or a range, which is beneficial to prolonging the service life of the chip.

Alternatively, the power lock structure may be integrated on a rigid-flex board or a flex board.

Two possible implementations of the power lock structure are described below. The application is still applicable to other implementations, and the following two implementations do not belong to the limitation of the technical scheme of the application.

Fig. 25 is a schematic structural diagram of a power locking structure according to an embodiment of the present application. Referring to fig. 25, the power locking structure includes a first laser diode 2501, a MOS transistor 2502, a back light photodiode 2503, an operational amplifier 2504, a first resistor 2505, a second resistor 2506, a third resistor 2507, and a fourth resistor 2508.

The positive electrode of the first laser diode 2501 is connected with a power supply pin 2510 of the second optical component, the drain electrode of the MOS tube 2502 is connected with the negative electrode of the first laser diode 2501, the grid electrode of the MOS tube 2502 is connected with the output port of the operational amplifier 2504, the source electrode of the MOS tube 2502 is connected with one end of the first resistor 2505, and the other end of the first resistor 2505 is grounded.

The cathode of the back light photodiode 2503 is connected to the power supply pin 2510 of the second optical component, the anode of the back light photodiode 2503 and one end of the second resistor 2506 are connected in parallel to the cathode input port of the operational amplifier 2504, and the other end of the second resistor 2506 is grounded.

One end of the third resistor 2507 and one end of the fourth resistor 2508 are connected in parallel with the positive input port of the operational amplifier 2504, the other end of the third resistor 2507 is connected with the power supply pin 2510 of the second optical component, and the other end of the fourth resistor 2508 is grounded.

Optionally, the power lock structure further includes a capacitor 2509, one end of the capacitor 2509 is connected to the output port of the operational amplifier 2504, and the other end of the capacitor 2509 is connected to the negative input port of the operational amplifier 2504. Thereby preventing self-oscillation of the operational amplifier.

In the power lock structure shown in fig. 25, the positive electrode of the operational amplifier 2504 is connected in parallel to the third resistor 2507 and the fourth resistor 2508, and these two resistors may be constant value resistors, and the voltage dividing ratio is set by the ratio of the third resistor 2507 to the fourth resistor 2508, so that the input voltage of the operational amplifier 2504 is set, and the target value of the power of the first wavelength optical signal is set.

When the voltage at the positive input port of the operational amplifier 2504 is unchanged and the power of the first wavelength optical signal output by the first laser diode 2501 is changed, the backlight photodiode 2503 absorbs the visible light or the near infrared light emitted by the first laser diode 2501, and when the power of the first wavelength optical signal is changed, the current of the branch where the backlight photodiode 2503 is located is changed, and the operational amplifier 2504 adjusts the output voltage thereof. When the output voltage of the operational amplifier 2504 changes and the conduction depth of the MOS transistor 2502 is different, the current passing through the first laser diode 2501 also changes, so as to control the power of the first wavelength optical signal output by the first laser diode 2501. The resistance of the second resistor 2506 affects the adjustment range of the power of the second wavelength optical signal. The power lock structure shown in fig. 25 drives the first laser diode 2501 together by the operational amplifier 2504 and the MOS transistor 2502 with low driving capability. The power of the first wavelength optical signal output from the first laser diode 2501 can be locked by the power locking structure shown in fig. 25 described above, or the power of the first wavelength optical signal output from the first laser diode 2501 can be controlled to fall within a certain range.

Fig. 26 is another schematic diagram of a power lock structure according to an embodiment of the present application. Referring to fig. 26, the power lock structure includes: a first laser diode 2601, a backlight photodiode 2602, an operational amplifier 2603, a first resistor 2604, a second resistor 2605, a third resistor 2606, and a fourth resistor 2607.

The positive electrode of the first laser diode 2601 is connected to the power supply pin 2609 of the second optical module, one end of the first resistor 2604 is connected to the negative electrode of the first laser diode 2601, and the other end of the first resistor 2604 is connected to the output port of the operational amplifier 2603.

The cathode of the backlight photodiode 2602 is connected to the power supply pin 2609 of the second optical module, one end of the second resistor 2605 and the anode of the backlight photodiode 2602 are connected in parallel to the cathode input port of the operational amplifier 2603, and the other end of the second resistor 2605 is grounded.

One end of the third resistor 2606 and one end of the fourth resistor 2607 are connected in parallel with the positive input port of the operational amplifier 2603, the other end of the third resistor 2606 is connected with the power supply pin 2609 of the second optical module, and the other end of the fourth resistor 2607 is grounded.

The third resistor 2606 and the fourth resistor 2607 in the power lock-in structure shown in fig. 26 described above function similarly to the third resistor 2507 and the fourth resistor 2508 in the power lock-in structure shown in fig. 25 described above, and the description thereof will be referred to in detail.

When the voltage of the positive input port of the operational amplifier 2603 is unchanged and the power of the first wavelength optical signal output by the first laser diode 2601 is changed, the backlight photodiode 2602 absorbs the visible light or the near infrared light emitted by the first laser diode 2601. Since the power of the first wavelength optical signal changes, the current of the branch where the back light photodiode 2602 is located changes, the operational amplifier 2603 adjusts the output voltage thereof, and the output voltage of the operational amplifier 2603 changes, so that the current supported by the first laser diode 2601 changes, and the control of the power of the first wavelength optical signal output by the first laser diode 2601 is realized. The power lock structure shown in fig. 26 directly drives the first laser diode 2601 through the operational amplifier 2603 having a strong driving capability. The resistance of the second resistor 2605 affects the adjustment range of the power of the second wavelength optical signal.

Optionally, the power locking structure further includes a capacitor 2608, where one end of the capacitor 2608 is connected to the output port of the operational amplifier 2603, and the other end of the capacitor 2608 is connected to the negative input port of the operational amplifier 2603. Thereby preventing self-oscillation of the operational amplifier 2603.

As is clear from the above, the power lock structure shown in fig. 25 or 26 is to realize the power control (i.e., the visible light output optical power or the near infrared light output optical power) of the first wavelength optical signal output by the first laser diode by using the negative feedback loop formed by the optical coupling between the first laser diode and the backlight photodiode.

It should be noted that, in the above embodiments, the packaging mode of coaxial tube shells is mainly adopted for packaging different optical components in the optical communication device. The present application is also applicable to other packaging modes, and is not limited in particular. For example, chip On Board (COB) packaging is used between different optical components.

In the optical communication apparatus shown in fig. 5 to 11, the second optical component may be electrically connected to the peripheral electronic component.

In the optical communication apparatus shown in fig. 13 to 24, the second optical module and the third optical module may be electrically connected to the peripheral electronic module.

The optical communication device is connected to a single board and placed in a frame to form an optical network device, where the optical network device may be an OLT, an ONU, or an optical transmission device in an optical transport network (optical transport network, OTN), and the specific point is not limited.

The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An optical communication apparatus, comprising: the first optical component, the second optical component, the first coupler and the first optical fiber connection port; the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, and the third end of the first coupler is connected with the first optical fiber connection port;

the first optical component is used for sending a first wavelength optical signal to the first coupler, and the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal to the first coupler, and service data is carried in the second wavelength optical signal; the first coupler is configured to couple the first wavelength optical signal and the second wavelength optical signal to obtain a composite signal, and send the composite signal to the first optical fiber connection port.

2. An optical communication apparatus, comprising: the first optical component, the second optical component, the first coupler and the first optical fiber connection port; the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, and the third end of the first coupler is connected with the first optical fiber connection port;

the first optical component is used for sending a first wavelength optical signal to the first coupler, and the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for receiving a third wavelength optical signal; carrying service data in the third wavelength optical signal; the first coupler is configured to split the first wavelength optical signal and a third wavelength optical signal from the first optical fiber connection port such that the first wavelength optical signal is sent to the first optical fiber connection port and the third wavelength optical signal is sent to the second optical component.

3. An optical communication apparatus, comprising: the first optical component, the second optical component, the first coupler and the first optical fiber connection port; the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, and the third end of the first coupler is connected with the first optical fiber connection port;

The first optical component is used for sending a first wavelength optical signal to the first coupler, and the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal to the first coupler, and service data is carried in the second wavelength optical signal; the first coupler is used for coupling the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and sending the combined signal to the first optical fiber connection port; and the first optical component is configured to transmit the first wavelength optical signal to the first coupler; the second optical component is used for receiving a third wavelength optical signal, and service data is carried in the third wavelength optical signal; the first coupler is configured to separate the first wavelength optical signal and the third wavelength optical signal from the first optical fiber connection port such that the first wavelength optical signal is sent to the first optical fiber connection port and the third wavelength optical signal is sent to the second optical component.

4. An optical communication apparatus according to any one of claims 1 to 3, wherein the first optical component is connected to the first end of the first coupler by a first optical transmission channel, the second optical component is connected to the second end of the second coupler by a second optical transmission channel, and the third end of the first coupler is connected to the first optical fiber connection port by a third optical transmission channel.

5. The optical communication device of claim 4, wherein the first optical transmission channel is a first optical fiber, the second optical transmission channel is a second optical fiber, and the third optical transmission channel is a third optical fiber.

6. The optical communication device of claim 4, wherein when the second optical component is an emitting optical component, the optical communication device further comprises a first housing, the first optical transmission channel, the second optical transmission channel, and the third optical transmission channel being optical transmission channels provided on the first housing;

the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel;

the first shell is provided with a first optical transmission port communicated with the first optical transmission channel and a second optical transmission port communicated with the second optical transmission channel;

the first optical component is encapsulated in the first optical transmission port, and the second optical component is encapsulated in the second optical transmission port.

7. The optical communication device of claim 4, wherein when the second optical component is a receiving optical component, the optical communication device further comprises a first housing, the first optical transmission channel, the second optical transmission channel, and the third optical transmission channel being optical transmission channels provided on the first housing;

the first shell is provided with a first light transmitting port communicated with the first light transmission channel and a light receiving port communicated with the second light transmission channel;

the first optical component is encapsulated in the first optical transmitting port, and the second optical component is encapsulated in the optical receiving port.

8. The optical communication device according to claim 4, wherein when the second optical component is a transceiver optical component, the optical communication device further comprises a first housing, and the first optical transmission channel, the second optical transmission channel, and the third optical transmission channel are optical transmission channels provided on the first housing;

the first shell is provided with a first optical transmitting port communicated with the first optical transmission channel and an optical receiving and transmitting port communicated with the second optical transmission channel;

the first optical component is encapsulated in the first optical transmitting port, and the second optical component is encapsulated in the optical receiving and transmitting port.

9. An optical communication apparatus, comprising: the first optical component, the second optical component, the third optical component, the first coupler, the second coupler and the first optical fiber connection port;

the first optical component is connected with the first end of the first coupler, the second optical component is connected with the second end of the first coupler, the third end of the first coupler is connected with the first end of the second coupler, the second end of the second coupler is connected with the third optical component, and the third end of the second coupler is connected with the first optical fiber connection port;

the first optical component is used for sending a first wavelength optical signal to the first coupler, and the first wavelength optical signal is a visible light signal or a near infrared light signal; the second optical component is used for sending a second wavelength optical signal to the first coupler, and service data is carried in the second wavelength optical signal;

the third optical component is used for receiving a fourth wavelength optical signal, and service data is carried in the fourth wavelength optical signal; the first coupler is used for coupling the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, and sending the combined signal to the second coupler; the second coupler is configured to send the combined signal to the first optical fiber connection port, receive the fourth wavelength optical signal from the first optical fiber connection port, and send the fourth wavelength optical signal to the third optical component.

10. The optical communication device of claim 9, wherein the first optical component is connected to the first end of the first coupler by a first optical transmission channel, the second optical component is connected to the second end of the first coupler by a second optical transmission channel, the third end of the first coupler is connected to the first end of the second coupler by a third optical transmission channel, the second end of the second coupler is connected to the third optical component by a fourth optical transmission channel, and the third end of the second coupler is connected to the first optical fiber connection port by a fifth optical transmission channel.

11. The optical communication device of claim 10, further comprising a first housing; the first optical transmission channel, the second optical transmission channel, the third optical transmission channel, the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the first shell;

the first coupler is arranged at the junction of the first optical transmission channel and the second optical transmission channel, and the second coupler is arranged at the junction of the third optical transmission channel and the fourth optical transmission channel;

The first shell is provided with a first light transmitting port communicated with the first light transmission channel, a second light transmitting port communicated with the second light transmission channel and a light receiving port communicated with the fourth light transmission channel;

the first optical component is encapsulated in the first optical transmission port, the second optical component is encapsulated in the second optical transmission port, and the third optical component is encapsulated in the optical receiving port.

12. The optical communication device of claim 10, further comprising a second housing and a third housing; the first optical transmission channel and the second optical transmission channel are optical transmission channels arranged on the second shell; the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the third shell; the third light transmission channel is arranged between the second shell and the third shell;

The second shell is provided with a first optical transmission port communicated with the first optical transmission channel and a second optical transmission port communicated with the second optical transmission channel; the third shell is provided with a light receiving port communicated with the fourth light transmission channel;

13. An optical communication apparatus, comprising: the first optical component, the second optical component, the third optical component, the first coupler, the second coupler and the first optical fiber connection port;

the first optical component is used for sending a first wavelength optical signal to the first coupler, and the first wavelength optical signal is a visible light signal or a near infrared light signal;

The second optical component is used for sending a second wavelength optical signal to the second coupler, and service data is carried in the second wavelength optical signal; the third optical component is used for receiving a fourth wavelength optical signal, and service data is carried in the fourth wavelength optical signal; the first coupler is configured to separate the first wavelength optical signal and the fourth wavelength optical signal from the second coupler such that the first wavelength optical signal is sent to the first coupler and the fourth wavelength optical signal is sent to the third optical component; the second coupler is configured to couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, send the combined signal to the first optical fiber connection port, receive the fourth wavelength optical signal from the first optical fiber connection port, and send the fourth wavelength optical signal to the first coupler.

14. The optical communication device of claim 13, wherein the first optical component is connected to the first end of the first coupler by a first optical transmission channel, the third optical component is connected to the second end of the first coupler by a second optical transmission channel, the third end of the first coupler is connected to the first end of the second coupler by a third optical transmission channel, the second end of the second coupler is connected to the second optical component by a fourth optical transmission channel, and the third end of the second coupler is connected to the first optical fiber connection port by a fifth optical transmission channel.

15. The optical communication device of claim 14, further comprising a first housing; the first optical transmission channel, the second optical transmission channel, the third optical transmission channel, the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the first shell;

the first shell is provided with a first light transmitting port communicated with the first light transmission channel, a light receiving port communicated with the second light transmission channel and a second light transmitting port communicated with the fourth light transmission channel;

the first optical component is encapsulated in the first optical transmission port, the second optical component is encapsulated in the optical receiving port, and the third optical component is encapsulated in the second optical transmission port.

16. The optical communication device of claim 14, further comprising a second housing and a third housing; the first optical transmission channel and the second optical transmission channel are optical transmission channels arranged on the second shell; the fourth optical transmission channel and the fifth optical transmission channel are optical transmission channels arranged on the third shell; the third light transmission channel is arranged between the second shell and the third shell;

the second shell is provided with a first light transmitting port communicated with the first light transmission channel and a light receiving port communicated with the second light transmission channel; a second light transmitting port communicated with the fourth light transmission channel is arranged on the third shell;

17. An optical communication apparatus, comprising: the first optical component, the second optical component, the third optical component, the first coupler, the second coupler and the first optical fiber connection port;

The first optical component is used for sending a first wavelength optical signal to the second coupler, and the first wavelength optical signal is a visible light signal or a near infrared light signal;

the second optical component is used for sending a second wavelength optical signal to the first coupler, and service data is carried in the second wavelength optical signal; the third optical component is used for receiving a fourth wavelength optical signal, and service data is carried in the fourth wavelength optical signal; the first coupler is configured to separate the second wavelength optical signal and the fourth wavelength optical signal from the second coupler such that the second wavelength optical signal is sent to the second coupler and the fourth wavelength optical signal is sent to the third optical component; the second coupler is configured to couple the first wavelength optical signal and the second wavelength optical signal to obtain a combined signal, send the combined signal to the first optical fiber connection port, receive the fourth wavelength optical signal from the first optical fiber connection port, and send the fourth wavelength optical signal to the first coupler.

18. The optical communication device of claim 17, wherein the first optical component is connected to the first end of the second coupler by a first optical transmission channel, the second optical component is connected to the first end of the first coupler by a second optical transmission channel, the third optical component is connected to the second end of the first coupler by a third optical transmission channel, the third end of the first coupler is connected to the second end of the second coupler by a fourth optical transmission channel, and the third end of the second coupler is connected to the first optical fiber connection port by a fifth optical transmission channel.

19. The optical communication device of claim 18, further comprising a first housing, wherein the first optical transmission channel, the second optical transmission channel, the third optical transmission channel, the fourth optical transmission channel, and the fifth optical transmission channel are optical transmission channels provided on the first housing;

the first coupler is arranged at the junction of the second optical transmission channel and the third optical transmission channel, and the second coupler is arranged at the junction of the first optical transmission channel and the fourth optical transmission channel;

a first light transmitting port communicated with the second light transmission channel, a light receiving port communicated with the third light transmission channel and a second light transmitting port communicated with the first light transmission channel are arranged on the first shell;

the first optical component is encapsulated in the second optical transmission port, the second optical component is encapsulated in the first optical transmission port, and the third optical component is encapsulated in the optical receiving port.

20. The optical communication device of claim 18, further comprising a second housing and a third housing; the second optical transmission channel and the third optical transmission channel are optical transmission channels arranged on the second shell; the first light transmission channel and the fifth light transmission channel are light transmission channels arranged on the third shell; the fourth light transmission channel is arranged between the second shell and the third shell;

the second shell is provided with a first light transmitting port communicated with the second light transmission channel and a light receiving port communicated with the third light transmission channel; a second light transmitting port communicated with the first light transmission channel is arranged on the third shell;

21. The optical communication device according to any one of claims 10 to 12, 14 to 16 and 18 to 20, wherein the first optical transmission channel is a first optical fiber, the second optical transmission channel is a second optical fiber, the third optical transmission channel is a third optical fiber, the fourth optical transmission channel is a fourth optical fiber, and the fifth optical transmission channel is a fifth optical fiber.

22. The optical communication apparatus according to any one of claims 1 to 3, 5 to 20, wherein the first optical component comprises a first laser diode LD, and wherein the positive electrode of the first laser diode is connected to the power supply pin of the second optical component through a rigid-flex board or a flexible board.

23. The optical communication device of claim 22, wherein the first optical assembly further comprises a power lock structure coupled to the first laser diode, the power lock structure configured to control the power of the first wavelength optical signal output by the first laser diode.

24. The optical communication device of claim 23, wherein the power lock-in structure comprises a backlight photodiode, a metal oxide semiconductor field effect transistor, a op amp, a first resistor, a second resistor, a third resistor, and a fourth resistor;

25. The optical communication device of claim 23, wherein the power-locking structure comprises a backlit photodiode, an operational amplifier, a first resistor, a second resistor, a third resistor, and a fourth resistor;

26. The optical communication device of claim 24, wherein the power lock structure further comprises a capacitor, one end of the capacitor being connected to the output port of the operational amplifier, the other end of the capacitor being connected to the negative input port of the operational amplifier.

27. The optical communication device of claim 25, wherein the power lock structure further comprises a capacitor, one end of the capacitor being connected to the output port of the operational amplifier, the other end of the capacitor being connected to the negative input port of the operational amplifier.

28. An optical network apparatus comprising the optical communication device of any one of claims 1 to 27.

29. The optical network device according to claim 28, characterized in that the optical network device comprises an optical line terminal OLT or an optical network unit ONU.