WO2020024698A1

WO2020024698A1 - Optical module, method, device, and system for obtaining optical signal, and storage medium

Info

Publication number: WO2020024698A1
Application number: PCT/CN2019/089921
Authority: WO
Inventors: 朱虎; 陈雷
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-08-01
Filing date: 2019-06-04
Publication date: 2020-02-06
Also published as: CN110798265A

Abstract

Disclosed are an optical module, a method, device, and system for obtaining an optical signal, a storage medium, and an electronic device. The optical module comprises: an input port and a light modulation assembly. The input port is configured to input light generated by an external light source located outside the optical module to the light modulation assembly; the light modulation assembly is configured to modulate the light generated by the external light source to obtain an optical signal.

Description

Optical module, method, device, system and storage medium for obtaining optical signal

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on August 01, 2018 with application number 201810866611.2, the entire contents of which are incorporated herein by reference.

Technical field

The present application relates to the field of communications, for example, to an optical module, a method, a device, a system, a storage medium, and an electronic device for obtaining an optical signal.

Background technique

The functional architecture of an optical transceiver module (also referred to as an optical module) in the related art is shown in FIG. 1. It is composed of a light transmitting component, a light receiving component, and a drive control circuit. These components and chips are packaged in Small Form-factor Pluggables (SFP), Quad Channel Small Form-factor Pluggables (QSFP), 100G Pluggable Package (Centum, Form Factor, Pluggable, CFP), etc. Inside the standard housing, a pluggable optical transceiver module is formed. The light-emitting component in the optical transceiver module is the core component that completes the conversion from electrical signals to optical signals. It encapsulates a semiconductor laser with a specific wavelength to form a transmission unit. When the system needs to send information, the driver chip modulates the semiconductor laser, loads the electrical signal onto the optical carrier of a specific wavelength of the semiconductor laser, and couples it to an optical fiber to send it.

The optical module with a built-in light source at the transmitting end has the following disadvantages:

First: Each optical module requires one or more semiconductor laser chips, and cannot share light sources. Semiconductor laser chips are the main cost element of optical modules, especially laser chips with speeds of 25G and above, which are controlled by only a few suppliers. The cost is extremely high and the availability of the supply chain is low.

Second: Poor versatility. Once the module's emission wavelength is determined, it cannot be changed (although the tunable module has a tunable wavelength, the adjustment range is limited, and the tunable chip package is complex and costly). Modules with specific wavelengths require semiconductor laser chips with specific wavelengths. Once the module's emission wavelength is determined, they are fixed at a specific wavelength and cannot be mixed with other wavelength modules. Whether it is R & D management or engineering application, it needs to be classified and managed.

Third: Encapsulation is complex. The laser is the largest heat source and the component that is most prone to failure in the optical module. In the package of the optical module, the heat dissipation of the laser must be specially considered and hermetically sealed.

Fourth: Poor compatibility with silicon light integration process. In addition to the inability to integrate semiconductor light sources, silicon light can integrate chips such as receiver detectors, drivers, amplifiers, and control integrated circuits (Integrated Circuits, ICs). It is a drive technology for optical modules to achieve low cost, small size, and high rate density. . The architecture of the built-in light source in related modules has hindered the large-scale application of silicon light to a certain extent.

In view of at least one of the above problems in the related technology, no effective solution is currently proposed.

Summary of the invention

Embodiments of the present invention provide an optical module, a method, a device, a system, a storage medium, and an electronic device for obtaining an optical signal, so as to at least solve the problem that the optical transceivers in the related art cannot share light sources, have poor versatility, have complicated packaging, and At least one of the problems of poor integration with silicon light.

According to an embodiment of the present application, an optical module is provided, including: an input port configured to input light generated by an external light source located outside the optical module to a light modulation component; the light modulation component, configured In order to modulate the light generated by the external light source, an optical signal is obtained.

According to another embodiment of the present application, a method for obtaining an optical signal is provided, which includes: using an input port in an optical module to obtain light generated from an external light source, wherein the external light source is located in the optical module Outside; using the light modulation component in the optical module to modulate the obtained light to obtain an optical signal.

According to another embodiment of the present application, a device for obtaining an optical signal is further provided, including: an obtaining module configured to obtain light generated from an external light source by using an input port in the optical module, wherein the external light source Located outside the optical module; a modulation module configured to modulate the obtained light by using a light modulation component in the optical module to obtain an optical signal.

According to another embodiment of the present application, an optical transceiver system is also provided, including: a light processing module and an external light source, wherein the number of the optical transceiver module is one or more, and the number of the external light source is As one or more, the light processing module includes the light module according to any one of the above.

According to yet another embodiment of the present application, a storage medium is also provided. The storage medium stores a computer program, and the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.

According to another embodiment of the present application, an electronic device is further provided, which includes a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to execute any one of the foregoing. Steps in a method embodiment.

Overview of the drawings

The drawings described here are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

FIG. 1 is a functional architecture of an optical transceiver module in the related art;

2 is a structural block diagram of an optical module according to an embodiment of the present invention;

3 is a structural block diagram of an optical transceiver module according to an embodiment of the present invention;

4 is a flowchart of a method for transmitting an optical signal according to an embodiment of the present invention;

5 is a structural block diagram of an optical signal transmitting device according to an embodiment of the present invention;

6 is a block diagram of a system structure according to an embodiment of the present invention;

7 is a schematic diagram of a module with a single external light source input port according to the first exemplary embodiment of the present invention;

FIG. 8 is a schematic diagram of a silicon optical module with multiple external light source input ports according to the second exemplary embodiment of the present invention; FIG.

FIG. 9 is a schematic diagram of a connection between a silicon optical chip and an optical interface according to a second embodiment of the present invention;

10 is a schematic diagram of an external light source and a module transceiver interface sharing the same connector according to a third embodiment of the present invention;

FIG. 11 is a schematic diagram of a connection between a silicon optical chip and an optical interface according to the third embodiment of the present invention; FIG.

FIG. 12 is a schematic diagram of a single-fiber bidirectional module with an external light source input port and a transceiver port on the same side according to the fourth exemplary embodiment of the present invention; FIG.

FIG. 13 is a schematic diagram of a connection between a silicon optical chip and an optical interface according to a fourth exemplary embodiment of the present invention; FIG.

14 is a schematic diagram of a silicon optical chip and an optical interface connected to an external light source input port multiplexed into a module receiving port according to the fifth exemplary embodiment of the present invention;

FIG. 15 is a schematic diagram of a silicon optical chip and an optical interface connected to an external light source input port multiplexed into a module transmitting port according to the sixth exemplary embodiment of the present invention; FIG.

16 is a schematic diagram of a module in which an external light source input port is an optical fiber without a connector according to Embodiment 7 of the present invention.

detailed description

Hereinafter, the present application will be described in detail with reference to the drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

It should be noted that the terms “first” and “second” in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

The solutions in the embodiments of the present invention can be applied to optical transceiver modules. The following describes this application with reference to the embodiments:

According to an embodiment of the present application, an optical module is provided. As shown in FIG. 2, the optical module includes an input port 202 and a light modulation component 204. The following describes each module:

The input port 202 is configured to input light generated by an external light source located outside the optical module to a light modulation component 204; the light modulation component 204 is configured to modulate light generated by an external light source to obtain an optical signal.

In the above embodiment, the optical module may be a light transmitting and receiving module having a light emitting capability. In the optical module, the light source may be external, that is, a built-in light source provided in the optical transmitting and receiving module in the related art may be provided in the optical module. The outside of the optical module, and the light of the external light source is input into the optical module through the above input port 202, and the external light source may not be part of the optical module. Because the light source is external, it can be flexibly adjusted and replaced. The purpose of the light source. Because the original light source in the optical module is externally installed, there is no need to set a semiconductor laser chip for each built-in light source. In addition, after the light source is externally connected, the light of the same light source can be divided into several parts by a beam splitter, and each of them can be divided into multiple parts. The use of two optical modules to achieve the sharing of light sources, external light sources can be flexibly replaced, and the wavelength of the light source after the replacement can be different, so as to achieve flexible adjustment of the emission wavelength. The heat dissipation reduces the complexity of the package. In addition, the external light source does not need to be integrated with silicon light. Therefore, it can solve the problem that the optical transceiver module in the related technology cannot share the light source, has poor universality, complex packaging, and poor integration with silicon light. The problem.

In an embodiment, the optical module further includes a transmitting optical interface, wherein the transmitting optical interface 206 is configured to transmit the optical signal.

In one embodiment, the input port 202 and the transmitting optical interface are located on the same optical connector or on different optical connectors in the optical module. In this embodiment, the optical connection may use a related connector. A socket is provided on the optical connector, and the socket can be used as the input port 202 and / or a transmitting optical interface. It should be noted that in the optical module, the optical The number of connectors can be one or more. When there are multiple optical connectors, the input port 202 and the transmitting optical interface can be set on the same optical connector or on different optical connectors. The specific settings The method can be flexibly adjusted according to the actual situation.

In an embodiment, the above-mentioned optical module further includes: a receiving optical interface, wherein the receiving optical interface and the input port 202 are located on the same optical connector or on different optical connectors in the optical module, and / or, The receiving optical interface and the transmitting optical interface are located on the same optical connector or on different optical connectors in the optical module. In this embodiment, three of the input port 202, the receiving optical interface, and the transmitting optical interface may be located on the same optical connector, or the three may be located on different optical connectors, or any two of the three may be located. On the same optical connector. Similarly, the positional relationship of the three can be flexibly adjusted according to the actual situation.

In one embodiment, the above-mentioned optical modulation component 204 includes: one or more modulation input ports, wherein the one or more modulation input ports form an optical connection (or an optical path connection) with the input port 202 of the optical module. In this embodiment, the one-to-one correspondence between the input port of the optical modulation component 204 and the input port 202 of the optical module may be provided, that is, the number of input ports of the optical modulation component 204 and the number of input ports 202 of the optical module may be Are the same and correspond one-on-one.

In one embodiment, when the optical modulation component includes multiple modulation input ports, different modulation input ports correspond to different modulation modes for modulating light. In this embodiment, the optical modulation component can perform multiple modulation methods, wherein the multiple modulation methods and the modulation input port may have a predetermined correspondence relationship (of course, the correspondence relationship can be flexibly adjusted and can be adjusted manually). (It can also be adjusted automatically by the optical module according to certain adjustment conditions.) For a specific modulation input port that receives light, the light modulation component can use the corresponding modulation method to adjust the light.

In one embodiment, the light modulation component is connected to an input port. In this embodiment, there may be multiple connection modes, for example, it may be a physical connection; it may also be a non-physical connection, for example, an optical fiber connection.

In an embodiment, the optical module further includes a silicon optical chip, wherein the input port and the light modulation component are integrated on the silicon optical chip.

In one embodiment, the number of the input ports 202 is one or more. In this embodiment, one input port 202 may correspond to one light source. It should be noted that in practical applications, one or more light sources may be provided inside the optical module, that is, when the light module is provided with a light source inside, it may also be provided with one or more external light sources. Ability.

In addition, it should be noted that the optical module may be a pluggable optical transceiver module, or, in general, the optical module may be an optical transceiver module without a built-in light source. In addition to the optical modulation component 204, the transmitting optical interface, and the receiving optical interface, the optical module may further include a light receiving component, a driving control circuit, and a package shell. For details, see FIG. 3. The light modulation component 204 appearing in the foregoing embodiments may include a Mach-Zehnder (MZ) modulator.

The above-mentioned transmitting function of the optical transceiver module without a built-in light source can be implemented through the following processes:

First: the external light source is input from the external light source input port of the module and enters the light modulation component;

Second: the light entering the light modulation component is modulated;

Third: The modulated optical signal is output from the module's transmitting optical interface.

The above-mentioned transmission process is described below in conjunction with the embodiments:

A method for obtaining an optical signal is also provided in this embodiment. FIG. 4 is a flowchart of a method for obtaining an optical signal according to an embodiment of the present invention. As shown in FIG. 4, the flow includes the following steps S42 and S44.

In step S42, an input port (corresponding to the input port 202 in the foregoing embodiment) in the optical module is used to obtain light generated from an external light source.

The external light source is located outside the optical module.

In step S44, the light modulation component (corresponding to the light modulation component 204 in the foregoing embodiment) in the optical module is used to modulate the obtained light to obtain an optical signal.

The above-mentioned operation may be performed by the above-mentioned optical module. In the above embodiment, the optical module may be a light transmitting and receiving module having a light emitting capability. In the optical module, the light source may be external, that is, a built-in light source provided in the optical transmitting and receiving module in the related art may be provided in The light of the external light source is input into the optical module through the input port, and the external light source may not be part of the optical module. Since the light source is external, it can be flexibly adjusted and replaced. the goal of.

In an embodiment, the method further includes step S46: after obtaining the optical signal, transmitting the optical signal by using a transmitting optical interface (corresponding to the transmitting optical interface in the foregoing embodiment) in the optical module.

In an embodiment, in step S42, using an input port in the optical module to obtain light generated from an external light source includes: using one or more input ports in the optical module to obtain light from one or more external light sources. Signal, wherein the input port is provided in one-to-one correspondence with the external light source. In this embodiment, one input port may correspond to one light source. It should be noted that in practical applications, one or more light sources may be provided inside the optical module, that is, when the light module is provided with a light source inside, it may also be provided with one or more external light sources. Ability.

In an embodiment, in step S44, the obtained light is modulated by using a light modulation component in the optical module, and obtaining an optical signal includes: sending the light to the optical modulation that is optically connected to the input port (or called an optical path connection). A component, wherein after receiving the light, the light modulation component modulates the light to obtain an optical signal. In this embodiment, the input ports of the optical modulation component and the input ports of the optical module may be set one-to-one correspondingly, that is, the number of input ports of the optical modulation component and the number of input ports of the optical module may be the same. And one-to-one correspondence.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary universal hardware platform, and of course, also by hardware, but in many cases the former is Better implementation. Based on such an understanding, the technical solution of this application that is essentially or contributes to related technologies can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, and optical disk) ) Includes several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the embodiments of the present application.

In this embodiment, a device for obtaining an optical signal is also provided. The device is used to implement the foregoing embodiments and preferred implementation manners, and the descriptions will not be repeated.

In this embodiment, a device for obtaining an optical signal is also provided. The device is used to implement the foregoing embodiments and preferred implementation manners, and the descriptions will not be repeated. As used below, the term "module" may implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and conceived.

FIG. 5 is a structural block diagram of an apparatus for obtaining an optical signal according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes:

The obtaining module 502 is configured to use an input port in the optical module to obtain light generated from an external light source, where the external light source is located outside the optical module; the modulation module 504 is connected to the obtaining module 502 and is configured to use the optical module The optical modulation component in the module modulates the obtained light to obtain an optical signal.

In one embodiment, the device further includes an output module connected to the modulation module 504 and configured to transmit an optical signal using a transmitting optical interface in the optical module.

In one embodiment, the obtaining module 502 is further configured to obtain optical signals from one or more external light sources by using one or more input ports in the optical module, wherein the input ports are provided in one-to-one correspondence with the external light sources.

In one embodiment, the modulation module 504 is further configured to send light to a light modulation component that is optically connected (or referred to as an optical path connection) with the input port, where the light modulation component modulates the light after receiving the light To get the light signal.

It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to the above: the above modules are located in the same processor; or the above modules are arbitrarily combined The forms are located in different processors.

An optical transceiver system is also provided in this embodiment, including: a light processing module and an external light source, wherein the number of the light processing module is one or more, and the number of the external light source is one or more. The light processing module includes the light module described in any one of the above embodiments.

In one embodiment, the system further includes: a power and wavelength divider, wherein the power and wavelength divider is configured to detect light when the number of optical transceiver modules is multiple and the number of external light sources is multiple. Configure the correspondence between the transceiver module and the external light source. The following describes this embodiment with reference to FIG. 6:

As shown in Figure 6, the optical transceiver system includes multiple external light sources, power and wavelength splitters (corresponding to the power / wavelength splitter in Figure 6) and multiple optical modules. Figure 6 shows multiple non-built-in light sources An optical transceiver system composed of an optical module and an external light source. The external light source can be centrally managed to form a shared light source pool. The shared light source pool is connected to the optical module by an external light source input port 21 of the optical module through a power and wavelength splitter. The optical module obtains the external light source and completes the modulation. Then, it is output by the module's transmitting optical interface 22 (23 in FIG. 6 is the module's receiving optical interface). In one embodiment, the first external light source can be used as the input light source for the first and second optical modules; the second external light source can be used as the input light source for the first, second, and fourth optical modules; the third external light source It can be used as the input light source of the second, third, fourth, and fifth optical modules. Of course, the number of optical modules and external light sources may be arbitrary and the connection manner may be arbitrary under the conditions of meeting the system index requirements. At a certain time, the first optical module can work at the wavelength of the first external light source; at another time, the first optical module can switch to the wavelength of the second external light source, which achieves the same operating wavelength of the same optical module Switch. In addition, the first, second, and third optical modules can work at the working wavelength of the second external light source at the same time, thereby achieving the sharing of light sources. In the traditional solution, each optical module has its own built-in light source. Five optical modules require five light sources, and once the light source is determined, the wavelength of the optical module cannot be changed. In this embodiment, the optical module and the light source are decoupled. , M optical modules and N light sources, through cross-connection combination, can form up to MxN types of optical module variations. Through dynamic scheduling of power and wavelength splitter, arbitrary wavelength switching can be achieved, which lays the foundation for all-optical switching. In the traditional solution, the light source is encapsulated inside the optical module. Once the light source fails, the entire optical module cannot be used. In this solution, multiple light sources can form a shared light source pool. In the embodiment of the present invention, the light sources can be individually packaged and Dissipate heat and improve reliability. Even if a certain light source fails, it will be supplemented by a backup light source immediately to prevent business interruption.

An embodiment of the present application further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.

In one embodiment, in this embodiment, the above storage medium may include, but is not limited to, a U disk, a read-only memory (ROM), a random access memory (RAM), and a mobile hard disk. , Magnetic disks, or compact discs, which can store computer programs.

An embodiment of the present application further provides an electronic device including a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the foregoing method embodiments.

In an embodiment, the electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the processor, and the input-output device is connected to the processor.

In an embodiment, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not described in this embodiment.

The following describes this application with reference to example embodiments:

First, the numbers in the drawings corresponding to the example embodiments will be described as a whole:

1. Light modulation component (corresponding to the light modulation component 204 in the foregoing embodiment); 10, silicon optical chip; 11, light input interface of the modulation component (corresponds to the modulation input port in the foregoing embodiment); 12, light of the modulation component Output interface; 13, the optical input interface of the silicon optical chip receiving part; 14, the silicon optical chip receiving and transmitting interface; 101, the modulator in the silicon optical chip; 102, the receiving component in the silicon optical chip; 103, the silicon optical chip Power and wavelength splitter in the module; 104, optical amplifier; 105, light reflecting element; 20, MPO connector; 21, external light source input port of the module; 22, transmitting optical interface of the module (corresponding to the previous embodiment) (Transmitting optical interface); 23, the receiving optical interface of the module (corresponding to the receiving optical interface in the foregoing embodiment); 24, the transceiver's combined optical interface; 3, the light receiving component; 4, the module driving circuit (corresponding to the foregoing) (The drive control circuit in the embodiment); 41, the IC chip on the module main board; 5, the module housing.

Each example embodiment is described below:

Example Embodiment 1

As shown in FIG. 7, the optical transceiver module is a single-channel dual-fiber bidirectional module, which includes a transmitting port 22 and a receiving port 23, and further includes an external optical input port 21, and the external optical input port 21 is a single channel. The connector part is arranged on the module housing, and is on a different optical connector from the light receiving and emitting interface of the module. The module housing 5 includes a light modulation component 1, a light receiving component 3, and a corresponding driving circuit 4. The light modulation component includes an MZ modulator chip, and the modulator chip is mounted on the module motherboard. The modulator chip has an optical input interface 11 and an optical output interface 12, the optical output interface 12 of the modulator is connected to the transmitting optical interface 22 of the module, and the optical input interface 11 of the modulator is connected to the external light source input port 21 of the module; The receiving end of the module is an independently packaged receiving component 3. The transmitting end of the module does not contain a light source, and the external light input modulator is modulated and loaded with a signal to output from the transmitting end. It can work at various wavelengths. For example, when the module's external light source input port inputs 1310nm light, the module is a 1310nm module; when the module's external light source input port inputs 1550nm light, the module is a 1550nm module.

Example Embodiment 2

As shown in FIG. 8, the optical transceiver module includes a transmitting port 22 and a receiving port 23, and further includes an external optical input port 21. The module housing 5 has an integrated silicon optical chip 10 and a corresponding driving circuit 4, such as The integrated silicon optical chip 10 shown in FIG. 9 integrates a multiplexer 101 and a light receiving component 102 and a power and wavelength divider 103, and there is no light source on the silicon optical chip. The optical output interface 12 of the modulator is connected to the transmitting optical interface 22 of the module, and the optical input interface 11 of the modulator is connected to the external light source input port 21 of the module. The difference from the second embodiment is that the module is a silicon optical module integrated with transceiver, and the external light source input port 21 is a multi-channel input port. Multiple external light sources are input through the MPO optical interface, and multiple external light sources can be the same wavelength or different wavelengths. After the external light enters the modulator component, each channel is modulated separately, which can be the same modulation method or a different modulation method. The modulated optical signal is multiplexed or transmitted in parallel by the wavelength or power distribution chip 103 to the chip optical output interface 12, and is output from the transmission port 22 of the module. This application makes up for the defect that the silicon optical chip cannot integrate the light source, and reduces the packaging difficulty of the silicon optical module.

Example Embodiment 3

As shown in FIG. 10, the optical transceiver module includes a transmitting port 22 and a receiving port 23, and further includes an external optical input port 21. An integrated silicon optical chip 10 and a corresponding driving circuit 4 are contained in the module housing 5. As shown in FIG. 11, the integrated silicon optical chip 10 integrates a light modulator 101 and a light receiving component 102. The difference from the foregoing implementation example is that the transmitting port 22, receiving port 23, and external optical input port 21 of the module are located at On the same MPO multi-core connector 20. This structure in which the external optical input port is placed on the same connector as the module transmitting port and receiving port, saves space for the external optical input port connector. After the external light enters the silicon optical chip from the external light source port 11, it is modulated by the modulator 101 and output from the modulator output interface 12.

Example Embodiment 4

As shown in FIG. 12, the optical transceiver module includes a transceiving integrated port 24, and further includes an external optical input port 21. An integrated silicon optical chip 10 and a corresponding driving circuit 4 are contained in the module housing 5. As shown in FIG. 13, the integrated silicon optical chip 10 integrates a light modulator 101 and a light receiving component 102, and a wavelength or power distribution chip 103. The difference from the previous example embodiment is that the transmit and receive ports of the module are combined into a single fiber bidirectional transceiver port 24, and the external optical input port 21 and the transceiver port are on the same side of the module, avoiding deployment. Disadvantages of taking up cheat space on different sides. After the external light enters the silicon optical chip, it is modulated by the modulator 101, passes through the wavelength or power distribution chip 103, and is output from the transceiver optical port 10 of the silicon optical chip 10.

Example Embodiment 5

The optical module of this exemplary embodiment is the same as that of the fourth exemplary embodiment as shown in FIG. 12, except that the external light source input port 21 and the receiving port of the module are on the same connector. As shown in FIG. 14, the receiving side of the integrated silicon optical chip 10 includes a wavelength or power distribution chip 103. One optical path branch of the wavelength or power distribution chip 103 is connected to the light receiving component 102, and the other branch is connected to the optical amplifier 104 and the optical modulation, respectively.器 101。 101. This makes the external light source input port 21 and the module receiving port multiplexable. When the external light source uses the module to receive the signal light, the wavelength or power distribution chip 103 allocates a part of the power to the light receiving component 102 for normal reception, and allocates another part of the power to the amplifier 104 and the optical modulator 101 for modulation; when the external light source and the module receive the working wavelength At different times, the wavelength or power distribution chip 103 demultiplexes the wavelength of the external light source and sends it to the optical amplifier 104 and the optical modulator 101 in sequence.

Example Embodiment 6

The optical module of this exemplary embodiment is the same as that of the fourth exemplary embodiment as shown in FIG. 12, except that the external light source input port 21 and the transmitting port of the module are on the same connector. As shown in FIG. 15, a light reflection element 105 is placed on the rear optical path of the light modulation 101. When an external light source passes through the light modulation component 101, it is reflected by the light reflection element 105 and returns to the light modulation component 101 again. It is modulated and multiplexed with the external light source input port 21 to achieve light emission.

Example Embodiment 7

As shown in FIG. 16, the optical transceiver module includes a transmitting port 22 and a receiving port 23. The module housing 5 includes a light modulation component 1, a light receiving component 3, and a corresponding driving circuit 4. The difference from the first implementation example is that the modulator optical input interface 11 is led out through an optical fiber and passes through the module housing 5 to the outside of the module. The module does not include a connector portion of the external optical input port 21, which saves the inside of the module space. The external light source is input through the fiber port, which also increases the flexibility of wiring.

The following technical effects can be achieved through the embodiments in this application:

First: The light source is separated from the inside of the optical module, and only the modulation part is retained inside the module, which reduces the module's dependence on the high-speed semiconductor laser chip, making the module wavelength-independent, and the difference between the modules is only the difference in speed. The working wavelength of the module is completely determined by the external light source. The same module can be used in both the O-band and C-band, just replace the light source. This will reduce the types of modules, greatly promote the integration of the module industry chain, and provide great convenience for engineering applications.

Second: It can realize the sharing and centralized management of thousands of module light sources. The light source is one of the largest heat sources in the module, and often requires air-tight packaging and special consideration of heat dissipation and reliability design. After the light source is individually packaged, the package of the module is simplified, and low-cost packaging technologies such as non-hermetic packaging are widely used, which can reduce the thermal load of the module and improve the reliability of the module. It is especially suitable for the application scenarios of silicon optical modules (cannot integrate light sources) .

Third: The light source is separated from the inside of the optical module to realize the decoupling of light and electricity. Any information and any modulation format can be loaded on optical carriers of any wavelength in real time, which creates convenient conditions for all-optical switching and software-defined networks.

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application may be implemented by a general-purpose computing device, and they may be concentrated on a single computing device or distributed in a network composed of multiple computing devices. Above, optionally, they may be implemented with program code executable by a computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases, may be in a different order than here The steps shown or described are performed either by making them into individual integrated circuit modules or by making multiple modules or steps into a single integrated circuit module. As such, this application is not limited to any particular combination of hardware and software.

Claims

An optical module includes:

An input port configured to input light generated by an external light source located outside the optical module to a light modulation component;

The light modulation component is configured to modulate light generated by the external light source to obtain an optical signal.
The optical module according to claim 1, further comprising:

A transmitting optical interface is configured to transmit the optical signal.
The optical module according to claim 2, wherein the input port and the transmitting optical interface are located on the same optical connector or on different optical connectors in the optical module.
The optical module according to claim 2, further comprising:

Receive optical interface, configured as at least one of the following:

The input port is located on the same optical connector or on a different optical connector in the optical module; and

And the emitting optical interface is located on the same optical connector or on a different optical connector in the optical module.
The optical module according to claim 1, wherein the light modulation component comprises:

One or more modulation input ports, wherein the one or more modulation input ports form an optical connection with the input port of the optical module.
The optical module according to claim 5, wherein when the optical modulation component includes multiple modulation input ports, different modulation input ports correspond to different modulation methods for modulating light.
The optical module according to claim 1, wherein:

The light modulation component is connected to the input port.
The optical module according to claim 1, wherein:

The optical module further includes a silicon optical chip, wherein the input port and the light modulation component are integrated on the silicon optical chip.
The optical module according to any one of claims 1 to 8, wherein the number of the input ports is at least one.
A method for obtaining an optical signal includes:

Use an input port in the optical module to obtain light generated from an external light source, wherein the external light source is located outside the optical module;

The obtained light is modulated by using a light modulation component in the optical module to obtain an optical signal.
The method according to claim 10, after obtaining the optical signal, further comprising:

The optical signal is transmitted using a transmitting optical interface in the optical module.
The method according to claim 10, wherein using an input port in the optical module to obtain light generated from an external light source comprises:

Use at least one of the input ports in the optical module to obtain an optical signal from at least one of the external light sources, wherein the input ports are provided in a one-to-one correspondence with the external light sources.
The method according to claim 10, wherein using the light modulation component in the optical module to modulate the obtained light to obtain an optical signal comprises:

Sending the light to the light modulation component optically connected to the input port, wherein after receiving the light, the light modulation component modulates the light to obtain the optical signal.
A device for obtaining an optical signal includes:

An obtaining module configured to obtain light generated from an external light source by using an input port in the optical module, wherein the external light source is located outside the optical module;

The modulation module is configured to modulate the obtained light using a light modulation component in the optical module to obtain an optical signal.
The apparatus according to claim 14, further comprising:

The output module is configured to transmit the optical signal by using a transmitting optical interface in the optical module after the optical signal is obtained.
An optical transceiver system includes: a light processing module and an external light source, wherein the number of the light processing module is at least one, the number of the external light source is at least one, and the light processing module includes claims 1 to The optical module according to any one of 9.
The system according to claim 16, further comprising: a power and wavelength divider, wherein the power and wavelength divider is configured to have a plurality of the optical transceiver modules and a plurality of the external light sources In each case, the correspondence between the optical transceiver module and the external light source is configured.
A storage medium stores a computer program therein, wherein the computer program is configured to execute the method according to any one of claims 10 to 13 when running.
An electronic device includes a memory and a processor, and a computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 10 to 13.