CN110798265A

CN110798265A - Optical module, method, device and system for obtaining optical signal and storage medium

Info

Publication number: CN110798265A
Application number: CN201810866611.2A
Authority: CN
Inventors: 朱虎; 陈雷
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2020-02-14
Also published as: WO2020024698A1

Abstract

The invention provides an optical module, a method, a device, a system, a storage medium and an electronic device for obtaining an optical signal. Wherein, this optical module includes: an input port 202 and an optical modulation component 204, wherein the input port 202 is configured to input light generated by an external light source located outside the optical module to the optical modulation component 204; the optical modulation component 204 is configured to modulate light generated by an external light source to obtain an optical signal. The invention solves the problems that the optical module in the related technology can not realize light source sharing, has poor universality, complex packaging and poor silicon light integration.

Description

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

Technical Field

The present invention relates to the field of communications, and in particular, to an optical module, a method, an apparatus, a system, a storage medium, and an electronic apparatus for obtaining an optical signal.

Background

The functional architecture of an optical transceiver module (also referred to as an optical module) in the related art is shown in fig. 1, and the optical transceiver module is composed of an optical transmitter module, an optical receiver module, and a driving control circuit. These components and chips are packaged in standard housings such as SFP (Small Form-Factor connectors), QSFP (Quad Small Form-Factor connectors, four-channel SFP interface), CFP (central Form Factor connectors, 100G Pluggable package) and the like, to Form a Pluggable optical transceiver module. The light emitting module in the optical transceiver module is a core component for converting electrical signals into optical signals, and encapsulates semiconductor lasers with specific wavelengths to form a transmitting unit. When the system has information sending requirement, the driving chip modulates the semiconductor laser, loads the electric signal to the optical carrier wave with specific wavelength of the semiconductor laser, and couples the electric signal to the optical fiber to send out.

The optical module with the built-in light source at the emitting end has the following defects:

firstly, the method comprises the following steps: each optical module needs one or more semiconductor laser chips, and the sharing of light sources cannot be realized. Semiconductor laser chips are the main cost factor of optical modules, especially laser chips with a rate of 25G and above, and are only mastered in a few suppliers, so the cost is extremely high, and the supply chain availability is low.

Secondly, the method comprises the following steps: the universality is poor, and the module emission wavelength cannot be changed once being determined (although the wavelength of the tunable module is tunable, the tuning range is limited, and the tunable chip is complex to package and high in cost). Once the emission wavelength of the module is determined, the module is fixed at the specific wavelength and cannot be mixed with modules with other wavelengths, and classified management is required no matter research and development management or engineering application.

Thirdly, the method comprises the following steps: the packaging is complicated. The laser is the largest heat source and the most vulnerable element in the optical module, and in the optical module package, the heat dissipation of the laser is particularly considered, and the package is airtight.

Fourthly: and the compatibility with a silicon optical integration process is poor. Silicon light can integrate chips such as a receiving detector, a driving Circuit, an amplifying Circuit, a control Integrated Circuit (IC) and the like, except for not integrating a semiconductor light source, and is a driving technology for realizing low cost, small size and high rate density of an optical module. The architecture of the built-in light source in the existing module hinders the silicon light from being applied on a large scale to a certain extent.

In view of at least one of the above problems in the related art, an effective solution has not been proposed yet.

Disclosure of Invention

The embodiment of the invention provides an optical module, a method, a device, a system, a storage medium and an electronic device for obtaining an optical signal, which are used for at least solving at least one of the problems that the optical transceiver module in the related art cannot realize light source sharing, has poor universality, is complex to package and has poor silicon optical integration.

According to an embodiment of the present invention, there is provided a light module including: an input port configured to input light generated by an external light source located outside the light module to a light modulation assembly; the optical modulation component is configured to modulate light generated by the external light source to obtain an optical signal.

Optionally, the optical module further includes: an optical emission interface, wherein the optical emission interface is configured to emit the optical signal.

Optionally, the input port and the emitted light interface are located on the same optical connector or on different optical connectors in the optical module.

Optionally, the light module further comprises: a receiving optical interface, wherein the receiving optical interface and the input port 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.

Optionally, the light modulation assembly 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.

Optionally, when the optical modulation component includes multiple modulation input ports, different modulation input ports correspond to different modulation modes for modulating light.

Optionally, the optical modulation assembly is connected to the input port.

Optionally, the optical module further includes a silicon optical chip, wherein the input port and the optical modulation component are integrated on the silicon optical chip.

Optionally, the number of the input ports is one or more.

There is also provided, in accordance with another embodiment of the present invention, a method of obtaining an optical signal, including: acquiring light generated by an external light source by using an input port in an optical module, wherein the external light source is positioned outside the optical module; and modulating the acquired light by using a light modulation component in the optical module to obtain an optical signal.

Optionally, after obtaining the optical signal, the method further comprises: and transmitting the optical signal by using an emission optical interface in the optical module.

Optionally, the acquiring light generated from an external light source using an input port in the light module includes: and acquiring optical signals from one or more external light sources by using one or more input ports in the optical module, wherein the input ports and the external light sources are arranged in one-to-one correspondence.

Optionally, modulating the acquired light by using the light modulation component in the optical module, and obtaining an optical signal includes: and sending the light to the optical modulation component optically connected with the input port, wherein the optical modulation component modulates the light after receiving the light to obtain the optical signal.

There is also provided, in accordance with another embodiment of the present invention, apparatus for obtaining an optical signal, including: the system comprises an acquisition module, a light module and a light module, wherein the acquisition module acquires light generated by an external light source by using an input port in the light module, and the external light source is positioned outside the light module; and the modulation module is used for modulating the acquired light by utilizing the light modulation component in the optical module to obtain an optical signal.

Optionally, the apparatus further comprises: and the output module is used for transmitting the optical signal by using an optical transmission interface in the optical module after the optical signal is obtained.

According to another embodiment of the present invention, there is also provided an optical transceiver system including: the light receiving and transmitting module comprises a light processing module and one or more external light sources, wherein the number of the light receiving and transmitting modules is one or more, the number of the external light sources is one or more, and the light processing module comprises any one of the light modules.

Optionally, the system further comprises: and the power and wavelength divider is used for configuring the corresponding relation between the optical transceiver module and the external light source under the condition that the number of the optical transceiver modules is multiple and the number of the external light sources is multiple.

According to a further embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.

According to the invention, because the original light source in the optical module is externally arranged, a semiconductor laser chip is not required to be arranged for each internal light source, and after the light source is externally arranged, the light beam splitter of the same light source can be divided into a plurality of parts to be respectively used by a plurality of optical modules, so that the sharing of the light source is realized, the external light source can be flexibly replaced, and the wavelengths of the replaced light sources can be different, so that the flexible adjustment of the emission wavelength is realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

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

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

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

FIG. 4 is a flow chart of a method of transmitting an optical signal according to an embodiment of the present invention;

fig. 5 is a block diagram of a transmitting apparatus of an optical signal according to an embodiment of the present invention;

FIG. 6 is a block diagram of a system architecture according to an embodiment of the present invention;

fig. 7 is a schematic block diagram of an external light source input port being a single path according to a first 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 a second embodiment of the present invention;

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

fig. 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 third embodiment of a silicon optical chip and optical interface according to the present invention;

fig. 12 is a schematic diagram of a single-fiber bi-directional module in which an external light source input port and a transceiver port are located on the same side according to a fourth embodiment of the invention;

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

fig. 14 is a schematic diagram illustrating a connection between a silicon optical chip and an optical interface, in which an external light source input port is multiplexed into a module receiving port according to a fifth embodiment of the present invention;

fig. 15 is a schematic diagram illustrating a connection between a silicon optical chip and an optical interface, in which external light source input ports are multiplexed as module emission ports according to a sixth embodiment of the present invention;

fig. 16 is a schematic diagram of a module with an external light source input port being a connector-less fiber according to a seventh embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The scheme in the embodiment of the invention can be applied to an optical transceiver module. The invention is illustrated below with reference to examples:

according to an embodiment of the present invention, there is provided an optical module, as shown in fig. 2, including an input port 202 and an optical modulation component 204. The following explains each module:

the input port 202 is configured to input light generated by an external light source located outside the light module to the light modulation assembly 204; the optical 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 an optical transceiver module with a light emitting capability, and in the optical module, the light source may be external, that is, an internal light source disposed in the optical transceiver module in the related art may be disposed outside the optical module, and light from the external light source may be input into the optical module through the input port 202, and the external light source may not be a part of the optical module. The original light source in the optical module is arranged externally, so that a semiconductor laser chip is not required to be arranged for each built-in light source, in addition, after the light source is arranged externally, the light splitter of the same light source can be divided into a plurality of parts to be used for a plurality of optical modules respectively, the sharing of the light source is realized, the external light source can be flexibly replaced, the wavelengths of the replaced light sources can be different, the flexible adjustment of the emission wavelength is realized, the heat dissipation of the light source in the optical module can be reduced due to the external light source, the packaging complexity is reduced, in addition, the external light source is not required to be integrated with silicon light, and the problems that the light source sharing cannot be realized, the universality is poor, the packaging complexity is complex and the silicon light integration performance is poor in the light receiving and transmitting module in the related technology can be solved.

In an alternative embodiment, the light module further comprises an emitting light interface 206, wherein the emitting light interface 206 is configured to emit the light signal.

In an alternative embodiment, the input port 202 and the optical transmit interface 206 are located on the same optical connector or on different optical connectors in the optical module. In this embodiment, the optical connection may adopt an existing connector, the optical connector is provided with a socket, and the socket may be used as the input port 202 and/or the optical transmission interface 206, it should be noted that, in the optical module, the number of the optical connectors may be one or more, when there are a plurality of optical connectors, the input port 202 and the optical transmission interface 206 may be arranged on the same optical connector, or may be arranged on different optical connectors, and the specific arrangement mode may be flexibly adjusted according to actual situations.

In an optional embodiment, the optical module further includes: a receive optical interface, wherein the receive optical interface is located on the same optical connector in the optical module as the input port 202 or on a different optical connector, and/or the receive optical interface is located on the same optical connector in the optical module as the transmit optical interface 206 or on a different optical connector. In this embodiment, the input port 202, the receiving optical interface and the transmitting optical interface 206 may be located on the same optical connector, all of 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 position relationship of the three can be flexibly adjusted according to the actual situation.

In an alternative embodiment, the light modulation assembly 204 comprises: one or more modulation input ports, wherein the one or more modulation input ports form an optical connection (alternatively referred to as an optical path connection) with the input port 202 of the optical module. In this embodiment, the input ports of the optical modulation assemblies 204 and the input ports 202 of the optical modules may be arranged in a one-to-one correspondence manner, that is, the number of the input ports of the optical modulation assemblies 204 and the number of the input ports 202 of the optical modules may be the same and are in a one-to-one correspondence manner.

In an optional 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 may execute multiple modulation modes, where the multiple modulation modes and the modulation input port may have a certain preset correspondence (of course, the correspondence may be flexibly adjusted, may be adjusted manually, or may be automatically adjusted by the optical module according to a certain adjustment condition), and for a specific modulation input port receiving light, the optical modulation component may adjust light by using the corresponding modulation mode.

In an alternative embodiment, the optical modulation assembly is coupled to the input port. In this embodiment, the connection manner may be various, for example, physical connection; or may be non-physical, for example, by fiber optic connection.

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

In an alternative 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. In practical applications, one or more light sources may be disposed inside the optical module, that is, in the case that the light source is disposed inside the optical module, the optical module may further have the capability of externally connecting one or more external light sources.

In addition, the optical module may be a pluggable optical transceiver module, or in a popular way, the optical module may be an optical transceiver module without a built-in light source. The optical module may further include a light receiving module, a driving control circuit, and a package housing, in addition to the light modulation module 204, the emitting light interface 206, and the receiving light interface, which can be seen in fig. 3 specifically. The optical modulation component 204 present in the foregoing embodiments may comprise a MZ (Mach-Zehnder) modulator.

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

firstly, the method comprises the following steps: the external light source is input from the external light source input port of the module and enters the light modulation component;

secondly, the method comprises the following steps: the light entering the light modulation component is modulated;

thirdly, the method comprises the following steps: the modulated optical signal is output from the module optical transmit interface.

The above-mentioned transmission flow is described with reference to the following embodiments:

in this embodiment, a method for obtaining an optical signal is further provided, and fig. 4 is a flowchart of the method for obtaining an optical signal according to the embodiment of the present invention, as shown in fig. 4, the flowchart includes the following steps:

step S42, acquiring light generated from an external light source by using an input port (corresponding to the input port 202 in the foregoing embodiment) in the optical module, wherein the external light source is located outside the optical module;

in step S44, the obtained light is modulated by the optical modulation component (corresponding to the optical modulation component 204 in the foregoing embodiment) in the optical module, so as to obtain an optical signal.

The optical module may perform the above operation. In the above embodiment, the optical module may be an optical transceiver module with a light emitting capability, and in the optical module, the light source may be external, that is, an internal light source disposed in the optical transceiver module in the related art may be disposed outside the optical module, and light from the external light source may be input into the optical module through the input port, and the external light source may not be a part of the optical module.

In an optional embodiment, the method further includes step S46: after obtaining the optical signal, the optical signal is emitted by using an emission optical interface (corresponding to the emission optical interface 206 in the foregoing embodiment) in the optical module.

In an alternative embodiment, in S42, acquiring light generated from an external light source using the input port in the light module includes: one or more input ports in the optical module are used for acquiring optical signals from one or more external light sources, wherein the input ports and the external light sources are arranged in a one-to-one correspondence manner. In this embodiment, one input port may correspond to one light source. In practical applications, one or more light sources may be disposed inside the optical module, that is, in the case that the light source is disposed inside the optical module, the optical module may further have the capability of externally connecting one or more external light sources.

In an alternative embodiment, in S44, the modulating the acquired light by the optical modulation component in the optical module to obtain the optical signal includes: the optical modulation module transmits light to an optical connection (also referred to as an optical path connection) with an input port, and modulates the light after receiving the light to obtain an optical signal. In this embodiment, the input ports of the optical modulation assemblies and the input ports of the optical modules may be arranged in a one-to-one correspondence manner, that is, the number of the input ports of the optical modulation assemblies and the number of the input ports of the optical modules may be the same and are in a one-to-one correspondence manner.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

In this embodiment, a device for obtaining an optical signal is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device that has been already made is omitted.

In this embodiment, a device for obtaining an optical signal is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device that has been already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 5 is a 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 including:

an obtaining module 502, configured to obtain light generated by an external light source through an input port in an optical module, where the external light source is located outside the optical module; the modulation module 504 is connected to the obtaining module 502, and configured to modulate the obtained light by using the optical modulation component in the optical module, so as to obtain an optical signal.

In an optional embodiment, the apparatus further comprises: and an output module, connected to the modulation module 504, for transmitting the optical signal by using the optical transmission interface in the optical module.

In an optional embodiment, the obtaining module 502 is specifically configured to obtain optical signals from one or more external light sources by using one or more input ports in the optical module, where the input ports and the external light sources are arranged in a one-to-one correspondence.

In an alternative embodiment, the modulation module 504 is specifically configured to transmit light to an optical modulation component optically connected to the input port (or referred to as an optical path connection), where the optical modulation component modulates the light after receiving the light to obtain an optical signal.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

In this embodiment, an optical transceiver system is further provided, including: the light processing module comprises one or more light processing modules and one or more external light sources, wherein the light processing modules comprise the light modules in any one of the embodiments.

In an optional embodiment, the system further includes: and the power and wavelength divider is used for configuring the corresponding relation between the optical transceiver module and the external light source under the condition that the number of the optical transceiver modules is multiple and the number of the external light sources is multiple. The present embodiment is described below with reference to fig. 6:

as shown in fig. 6, the optical transceiver system includes a plurality of external light sources, a power and wavelength divider (corresponding to the power/wavelength divider in fig. 6) and a plurality of optical modules, and fig. 6 shows the optical transceiver system formed by a plurality of optical modules without internal light sources and external light sources. The external light sources may be managed in a centralized manner to form a shared light source pool, the shared light source pool is connected to the optical module through a power and wavelength distributor via an external light source input port 21 of the optical module, and the optical module obtains the external light sources and completes modulation, and then the light is output through a light emitting interface 22 of the module (23 in fig. 6 is a light receiving interface of the module). Optionally, the first external light source may serve as an input light source of the first and second light modules; the second external light source can be used as an input light source of the first, second and fourth light modules; the third external light source can be used as an input light source of the second, third, fourth and fifth light modules. Of course, under the condition of meeting the system index requirement, the number of the optical module and the external light source may be any, and the connection mode may also be any. At a certain moment, the first optical module can work on the wavelength of the first external light source; at another moment, the first optical module can be switched to the wavelength of the second external light source, so that the working wavelength of the same optical module can be switched randomly. In addition, the first, second and third light modules can simultaneously work on the working wavelength of the second external light source, thereby realizing the sharing of the light sources. In the traditional scheme, each optical module is provided with a respective built-in light source, five optical modules need five light sources, and once the light sources are determined, the wavelength of each optical module cannot be changed; in this embodiment, the optical modules and the light sources are decoupled, M optical modules and N light sources are combined by cross connection, at most, MxN optical module variation forms can be formed, and arbitrary wavelength switching can be realized by dynamic scheduling of the power and wavelength divider, which lays a foundation for all-optical switching. In the traditional scheme, a light source is packaged in an optical module, and once the light source fails, the whole optical module cannot be used; in the embodiment of the invention, the light sources can be independently packaged and radiated, so that the reliability is improved, and even if one light source fails, a backup light source can be immediately supplemented, thereby preventing service interruption.

Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.

Optionally, the electronic apparatus 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.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

The invention is illustrated below with reference to specific examples:

firstly, the number of the figures corresponding to each specific embodiment is explained in a whole way:

1. a light modulation component (corresponding to the light modulation component 204 in the foregoing embodiment); 10. a silicon optical chip; 11. a modulation assembly optical input interface (corresponding to the modulation input port in the foregoing embodiments); 12. a modulation assembly optical output interface; 13. the optical input interface of the silicon optical chip receiving part; 14. a silicon optical chip transceiving integrated interface; 101. a modulator in the silicon optical chip; 102. a receiving component in the silicon optical chip; 103. a power and wavelength divider in the silicon photonics chip; 104. an optical amplifier; 105. a light reflecting element; 20. an MPO connector; 21. an external light source input port of the module; 22. the module's light emitting interface (corresponding to light emitting interface 206 in the previous embodiment); 23. a receiving optical interface of the module (corresponding to the receiving optical interface in the foregoing embodiments); 24. the module receives and transmits an optical interface; 3. a light receiving member; 4. a module drive circuit (corresponding to the drive control circuit in the foregoing embodiment); 41. an IC chip on the module motherboard; 5. and a module housing.

The following examples are illustrative of the various embodiments:

detailed description of the preferred embodiment

As shown in fig. 7, the optical transceiver module is a single-channel dual-fiber bidirectional module, and includes a transmitting port 22 and a receiving port 23, and further includes an external optical input port 21, where the external optical input port 21 is a single channel, and a connector portion of the external optical input port is disposed on the module housing and is located on a different optical connector from the transceiver optical interface of the module. Inside the module case 5 are the light modulation module 1, the light receiving module 3, and the corresponding drive circuit 4. The optical modulation assembly comprises an MZ modulator chip, and the modulator chip is attached to the module mainboard. The modulator chip is provided with an optical input interface 11 and an optical output interface 12, the optical output interface 12 of the modulator is connected with an emitting optical interface 22 of the module, and the optical input interface 11 of the modulator is connected with an external light source input port 21 of the module; the receiving end of the module is an independently encapsulated receiving assembly 3. The module transmitting end does not contain a light source, and the external optical input modulator is output from the transmitting end after being modulated with the loading signal. The module can work under various wavelengths, for example, when the module external light source input port inputs 1310nm wavelength light, the module is a 1310nm module; when 1550nm wavelength light is input at the external light source input port of the module, the module is the 1550nm module.

Detailed description of the invention

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, an integrated silicon optical chip 10 and a corresponding driving circuit 4 are disposed in the module housing 5, as shown in fig. 9, the integrated silicon optical chip 10 integrates a multiplexer 101 and an optical 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 optical emission 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 transceiver integrated silicon optical module, and the external light source input port 21 is a multi-channel input port. The external light sources are input through the MPO optical interface, and the external light sources can be of the same wavelength or different wavelengths. After the external light enters the modulator assembly, each path is modulated respectively, and the modulation method can be the same or different. The modulated optical signals are multiplexed or transmitted in parallel by the wavelength or power distribution chip 103 to the chip optical output interface 12, and output from the module's transmission port 22. The invention makes up the defect that the silicon optical chip can not integrate the light source, and reduces the packaging difficulty of the silicon optical module.

Detailed description of the preferred embodiment

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, and the module housing 5 has an integrated silicon optical chip 10 and a corresponding driving circuit 4 therein. As shown in fig. 11, the integrated silicon optical chip 10 integrates the optical modulator 101 and the optical receiving component 102, which is different from the foregoing embodiment in that the transmitting port 22, the receiving port 23, and the external optical input port 21 of the module are located on the same MPO multi-core connector 20. The structure of arranging the external optical input port, the module transmitting port and the module receiving port on the same connector saves the space of the external optical input port connector. After entering the silicon optical chip from the external light source port 11, the external light is modulated by the modulator 101 and output from the modulator output interface 12.

Detailed description of the invention

As shown in fig. 12, the optical transceiver module includes a transceiver port 24 and an external optical input port 21, and the module housing 5 has an integrated silicon optical chip 10 and a corresponding driving circuit 4 therein. As shown in fig. 13, the integrated silicon optical chip 10 integrates an optical modulator 101 and a light receiving module 102, and a wavelength or power distribution chip 103. The difference from the foregoing embodiment is that the transmitting port and the receiving port of the module are combined into the transceiving integrated port 24 supporting single-fiber bi-direction, and the external optical input port 21 and the transceiving integrated port are located on the same side of the module, thereby avoiding the disadvantage that the transmitting port and the receiving port occupy golden finger space when deployed on different sides. After entering the silicon optical chip, the external light is modulated by the modulator 101, passes through the wavelength or power distribution chip 103, and is output from the transceiver port 14 of the silicon optical chip 10.

Detailed description of the preferred embodiment

The optical module of the present embodiment and the fourth embodiment have the same shape as that of the optical module 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 has a wavelength or power distribution chip 103, one optical path branch of the wavelength or power distribution chip 103 is connected to the optical receiving component 102, and the other branch is respectively connected to the optical amplifier 104 and the optical modulator 101. This allows the external light source input port 21 to be multiplexed into the module receiving port. When the external light source uses the module to receive the signal light, the wavelength or power distribution chip 103 distributes a part of power to the light receiving component 102 for normal reception, and distributes another part of power to the amplifier 104 and the optical modulator 101 for modulation; when the external light source and the module receive different working wavelengths, the wavelength or power distribution chip 103 demultiplexes the wavelength of the external light source and sequentially sends the demultiplexed wavelengths to the optical amplifier 104 and the optical modulator 101.

Detailed description of the preferred embodiment

The optical module in this embodiment has the same shape as the optical module in the fourth embodiment, as shown in fig. 12, except that the external light source input port 21 and the emission port of the module are on the same connector. As shown in fig. 15, a light reflection element 105 is disposed on the rear end light path of the light modulation 101, and after the external light source passes through the light modulation module 101, the external light source is reflected by the light reflection element 105, returns to the light modulation module 101 again to be modulated, and multiplexes the external light source input port 21 to realize light emission.

Detailed description of the preferred embodiment

As shown in fig. 16, the optical transceiver module includes a transmitting port 22 and a receiving port 23, and the optical modulation component 1, the optical receiving component 3, and the corresponding driving circuit 4 are disposed in the module housing 5. The difference from the first embodiment 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, and the connector part of the external optical input port 21 is not included in the module, so that the internal space of the module is saved. The external light source is input through the optical fiber port, and the flexibility of wiring is also increased.

The following technical effects can be achieved through the embodiments of the invention:

firstly, the method comprises the following steps: the light source is separated from the inside of the optical module, only the modulation part is reserved in the module, the dependence of the module on a high-speed semiconductor laser chip is reduced, the module becomes irrelevant to wavelength, and the difference between the modules is only the difference in speed. The working wavelength of the module is completely determined by an external light source, and the same module can be used for both an O wave band and a C wave band, and only the light source needs to be replaced. The method greatly reduces the module types, greatly promotes the integration of the module industrial chain, and provides great convenience for engineering application.

Secondly, the method comprises the following steps: the sharing and centralized management of thousands of module light sources can be realized. The light source is one of the largest heat sources in the module, often requiring hermetic packaging and designed with particular consideration to heat dissipation and reliability. After the light source is packaged independently, the packaging of the module is simplified, low-cost packaging technologies such as non-airtight packaging and the like are widely applied, the thermal load of the module can be reduced, the reliability of the module is improved, and the method is particularly suitable for application scenes of silicon optical modules (light sources cannot be integrated).

Thirdly, the method comprises the following steps: the light source is separated from the inside of the optical module, so that optical and electrical decoupling is realized. Any information and any modulation format can be loaded on optical carriers with any wavelength in real time, and convenience is provided for all-optical switching and software defined networks.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A light module, comprising:

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

the optical modulation component is configured to modulate light generated by the external light source to obtain an optical signal.

2. The light module of claim 1, further comprising:

an optical emission interface, wherein the optical emission interface is configured to emit the optical signal.

3. The optical module of claim 2, wherein the input port and the transmit optical interface are located on the same optical connector or on different optical connectors in the optical module.

4. The light module of claim 2, further comprising:

a receiving optical interface, wherein the receiving optical interface and the input port 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.

5. The light module of claim 1, wherein the light modulation assembly 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.

6. The optical module of claim 5, wherein when the optical modulation component comprises multiple modulation input ports, different modulation input ports correspond to different modulation modes for modulating light.

7. The light module of claim 1,

the optical modulation component is connected with the input port.

8. The light module of claim 1,

the optical module further comprises a silicon optical chip, wherein the input port and the optical modulation component are integrated on the silicon optical chip.

9. The optical module according to any one of claims 1 to 8, characterized in that the number of input ports is one or more.

10. A method of obtaining an optical signal, comprising:

acquiring light generated by an external light source by using an input port in an optical module, wherein the external light source is positioned outside the optical module;

and modulating the acquired light by using a light modulation component in the optical module to obtain an optical signal.

11. The method of claim 10, wherein after obtaining the optical signal, the method further comprises:

and transmitting the optical signal by using an emission optical interface in the optical module.

12. The method of claim 10, wherein acquiring light generated from an external light source using an input port in a light module comprises:

and acquiring optical signals from one or more external light sources by using one or more input ports in the optical module, wherein the input ports and the external light sources are arranged in one-to-one correspondence.

13. The method of claim 10, wherein modulating the acquired light with a light modulation component in the light module to obtain a light signal comprises:

and sending the light to the optical modulation component optically connected with the input port, wherein the optical modulation component modulates the light after receiving the light to obtain the optical signal.

14. An apparatus for obtaining an optical signal, comprising:

the system comprises an acquisition module, a light module and a light module, wherein the acquisition module acquires light generated by an external light source by using an input port in the light module, and the external light source is positioned outside the light module;

and the modulation module is used for modulating the acquired light by utilizing the light modulation component in the optical module to obtain an optical signal.

15. The apparatus of claim 14, further comprising:

and the output module is used for transmitting the optical signal by using an optical transmission interface in the optical module after the optical signal is obtained.

16. An optical transceiver system, comprising: the light processing module comprises one or more light processing modules and one or more external light sources, and the light processing module comprises the light module of any one of claims 1 to 9.

17. The system of claim 16, further comprising: and the power and wavelength divider is used for configuring the corresponding relation between the optical transceiver module and the external light source under the condition that the number of the optical transceiver modules is multiple and the number of the external light sources is multiple.

18. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 10 to 13 when executed.

19. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 10 to 13.