CN117318873A

CN117318873A - Adapter and on-board optical interconnection system

Info

Publication number: CN117318873A
Application number: CN202210702963.0A
Authority: CN
Inventors: 李心白; 王文怡; 赵俊英; 黄火清; 于飞; 史锡婷
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2023-12-29
Also published as: WO2023246503A1

Abstract

The application provides an adapter and an on-board optical interconnection system, which can realize flexible switching of a parallel optical fiber working mode and a wavelength division multiplexing working mode of a client interface. The adapter includes: a first optical interface, at least one wavelength division multiplexer. The first optical interface can be plugged in the on-board optical interconnection equipment and is connected with at least one wavelength division multiplexer in an equipartition and crossing mode. At least one wavelength division multiplexer is connected to the first transmission fiber. The first optical interface is configured to receive N first input signal lights from the board optical interconnect device and output the N first input signal lights to the at least one wavelength division multiplexer. At least one wavelength division multiplexer couples M first input signal lights out of the N first input signal lights and generates first coupled signal lights. The N first input signal lights are signal lights corresponding to parallel optical fiber working modes, the wavelengths of the M first input signal lights are different, and the first coupling signal lights are signal lights corresponding to wavelength division multiplexing modes.

Description

Adapter and on-board optical interconnection system

Technical Field

The present application relates to the field of optical communications, and more particularly, to an adapter and an on-board optical interconnect system.

Background

With the increasing demands for the interconnection speed between chips on a circuit board, the conventional copper wire interconnection cannot meet the reliability requirement of data transmission, which is caused by the continuous aggravation of the problems of signal attenuation, delay, crosstalk and the like caused by the parasitic effect, skin effect, dielectric loss and the like of the metal interconnection wire under high-speed digital, so that the data transmission rate on the slender metal wire between chips is limited, namely, the so-called electronic bottleneck. The optical interconnection technology is the best solution, and has the advantages of high bandwidth, no crosstalk in independent transmission of light waves, high density, low loss, small delay and the like, thereby becoming the next generation of high-performance interconnection technology instead of 'electric interconnection'. Board-level optical interconnection refers to a technology for realizing information transmission and exchange between chips on a circuit board by using photons as carriers, wherein an emitter converts an electric signal into an optical signal, and a receiver detector converts the optical signal into an electric signal.

Currently, the modes of operation of on-board optical interconnect systems can be divided into two broad categories, wavelength division multiplexing (wavelength division multiplexing, WDM) modes of operation and parallel optical fibers (parallel single mode, PSM) modes of operation (also referred to as non-wavelength division modes of operation). In general, when an apparatus supporting an optical interconnection system leaves a factory, it has been determined that one of two operation modes that the apparatus can support, i.e., it is difficult to adjust a wavelength division operation mode and a non-wavelength division operation mode on a use interface. Therefore, how to use the working mode of the on-board optical interconnection system of the interface switching device at the customer is a technical problem to be solved.

Disclosure of Invention

The application provides an adapter and an on-board optical interconnection system, which can realize the switching between a parallel optical fiber working mode and a wavelength division multiplexing working mode of a client interface, thereby realizing the butt joint from a non-wavelength division system to a wavelength division system.

In a first aspect, embodiments of the present application provide an adapter. The device comprises: a first optical interface, at least one wavelength division multiplexer. Wherein, the connection relation between the first optical interface and the at least one wavelength division multiplexer is: the first port of the first optical interface can be plugged into the device, the second port of the first optical interface is connected with the input port of the at least one wavelength division multiplexer in an equipartition crossing mode, and the output port of the at least one wavelength division multiplexer is connected with the first transmission optical fiber. The first optical interface and the at least one wavelength division multiplexer function as: the first optical interface is configured to receive N first input signal lights from the device, and output the N first input signal lights to the at least one wavelength division multiplexer, where the N first input signal lights are signal lights corresponding to a parallel optical fiber working mode. The at least one wavelength division multiplexer is configured to couple M first input signal lights of the N first input signal lights to generate first coupled signal lights, where wavelengths of the M first input signal lights are different, and the first coupled signal lights are signal lights corresponding to a wavelength division multiplexing mode. Wherein N is an integer greater than or equal to 2, M is an integer greater than or equal to 1, and M is less than N.

Based on the above scheme, the adapter provided in the embodiment of the present application can be plugged into the on-board optical interconnection device, and after being applied to the on-board optical interconnection device, the adapter can convert signal light corresponding to the device in the parallel optical fiber working mode into signal light corresponding to the wavelength division multiplexing mode. The switching of the working modes of the client interface is realized, and the operation and the use of a user are convenient.

With reference to the first aspect, in certain implementations of the first aspect, the adapter further includes: at least one wavelength division demultiplexer. Wherein the input end of the at least one wavelength division demultiplexer is connected with the second transmission optical fiber, and the output end of the at least one wavelength division demultiplexer is connected with the second port of the first optical interface. The at least one wavelength division demultiplexer is configured to demultiplex the second coupling signal light into P second input signal lights, and output the P second input signal lights to the second port of the first optical interface, where the wavelengths of the P second input signal lights are different. The first optical interface is configured to input the P second input signal lights to the device, where P is an integer greater than 1.

With reference to the first aspect, in certain implementation manners of the first aspect, an output port of the at least one wavelength division multiplexer is connected to a first transmission optical fiber, including: the output port of the at least one wavelength division multiplexer is connected with the first transmission optical fiber in a fusion mode. The input port of the at least one wavelength division demultiplexer is connected to a second transmission optical fiber, comprising: the input port of the at least one wavelength division multiplexer is connected with the second transmission optical fiber in a fusion connection mode.

Based on the scheme, the wavelength division multiplexer and the wavelength division demultiplexer are directly connected with the transmission optical fiber, so that the transmission insertion loss can be reduced.

With reference to the first aspect, in certain implementations of the first aspect, the adapter further includes a second interface. The output port of the at least one wavelength division multiplexer is connected with a first transmission optical fiber, and the output port of the at least one wavelength division multiplexer comprises: the output port of the at least one wavelength division multiplexer is connected with the first transmission optical fiber through the second optical interface. The input port of the at least one wavelength division demultiplexer is connected to a second transmission optical fiber, comprising: the input port of the at least one wavelength division demultiplexer is connected to the second transmission optical fiber through the second optical interface. The second interface is configured to input the first coupling signal light into the first transmission optical fiber, and transmit the second coupling signal light of the second transmission optical fiber into the at least one wavelength-division demultiplexer.

With reference to the first aspect, in certain implementation manners of the first aspect, the second optical interface is connected to the first transmission optical fiber through a pluggable optical port adapter, and the second optical interface is connected to the second transmission optical fiber through a pluggable optical port adapter.

Based on the scheme, flexible plug of the transmission optical fiber and the adapter can be realized.

With reference to the first aspect, in certain implementations of the first aspect, the at least one wavelength division multiplexer and the at least one wavelength division demultiplexer are a tapered fiber wavelength division multiplexer and a tapered fiber wavelength division demultiplexer.

Based on the scheme, the tapered optical fiber wavelength division multiplexer and the tapered optical fiber wavelength division multiplexer have the characteristics of low insertion loss, irrelevant polarization and insensitive temperature, so that the adapter has stable working performance and strong reliability. Meanwhile, the tapered optical fiber wavelength division multiplexer and the tapered optical fiber wavelength division demultiplexer are long and narrow in appearance, and the adapter can be arranged in the wire diameter of the optical cable, so that the space is saved.

In a second aspect, embodiments of the present application provide an adapter for switching a device operating mode. The device comprises: the device comprises a first optical interface, N photoelectric detectors, N photoelectric modulators, M wavelength division multiplexers and a power interface. The first port of the first optical interface is pluggable to the device, the second port of the first optical interface is connected with the input ports of the N photoelectric detectors, the output ports of the N photoelectric modulators are connected with the input ports of the M wavelength division multiplexers, and the output ports of the M wavelength division multiplexers are connected with the first transmission optical fiber. The first optical interface is configured to receive N first input signal lights from the device, and input the N first input signal lights to the N photodetectors, where the N first input signal lights are signal lights corresponding to a parallel optical fiber working mode. The N photodetectors are used for converting the N first input signal lights into N electric signals and respectively outputting the N electric signals to the N photoelectric modulators. The N photoelectric modulators modulate and generate N second input signal lights based on the N electric signals, and respectively output the N second input signal lights to the M wavelength division multiplexers, wherein the wavelengths of the N second input signal lights are different. The M wavelength division multiplexers are configured to couple the N second input signal lights to generate M first coupled signal lights, and transmit the M first coupled signal lights to the first transmission optical fiber, where the M first coupled signal lights are signal lights corresponding to a wavelength division multiplexing mode. The power interface is used for supplying power to the adapter. Wherein N is an integer greater than or equal to 2, M is an integer greater than or equal to 1, and N is greater than M.

Based on the scheme, the photoelectric conversion element in the adapter is utilized to realize the conversion from gray light to electric signal and then to color light, so that the replacement operation of the light engine when the equipment is used for converting the working mode by using the adapter can be avoided, and the flexible operation of a client interface is further realized.

With reference to the second aspect, in certain implementations of the second aspect, the adapter further includes: p wave demultiplexers. The input ports of the P demultiplexers are connected with a second transmission optical fiber, and the output ends of the P demultiplexers are connected with the second port of the first optical interface. Each of the P wavelength division demultiplexers is configured to receive a second coupling signal light from the second transmission optical fiber, demultiplex the second coupling signal light into Q third input signal lights, and output the Q third input signal lights to the second port of the first optical interface, where the Q third input signal lights have different wavelengths. The first optical interface is configured to input the Q third input signal lights to the device. Wherein P is an integer greater than or equal to 1, and Q is an integer greater than or equal to 2.

With reference to the second aspect, in certain implementations of the second aspect, the adapter further includes: and the input ports of the N amplifiers are respectively connected with the output ports of the N photoelectric detectors, and the output ports of the N amplifiers are respectively connected with the input ports of the N photoelectric modulators. The N amplifiers are used for amplifying the amplitude of the N electric signals and respectively outputting the N electric signals with the amplified amplitude to the N photoelectric modulators.

Based on the scheme, the amplitude of the electric signal is amplified through the amplifier, so that the electro-optical conversion efficiency of the adapter is improved, and the performance of the adapter is further improved.

With reference to the second aspect, in some implementations of the second aspect, the output ports of the M wavelength division multiplexers are connected to a first transmission optical fiber, including: the output ports of the M wavelength division multiplexers are connected with the first transmission optical fiber in a fusion mode. The input ports of the P wavelength division demultiplexers are connected to a second transmission optical fiber, including: the input ports of the P wave-division multiplexing devices are connected with the second transmission optical fiber in a fusion connection mode.

With reference to the second aspect, in certain implementations of the second aspect, the adapter further includes a second interface. The output ports of the M wavelength division multiplexers are connected with a first transmission optical fiber, and the M wavelength division multiplexers comprise: the output ports of the M wavelength division multiplexers are connected with the first transmission optical fiber through the second optical interface. The input ports of the P wavelength division demultiplexers are connected to a second transmission optical fiber, including: the input ports of the P wavelength division demultiplexers are connected to the second transmission optical fiber through the second optical interface. The second interface is configured to input the M first coupling signal lights into the first transmission optical fiber, and transmit the second coupling signal lights of the second transmission optical fiber into the P wavelength division demultiplexer.

With reference to the second aspect, in some implementations of the second aspect, the second optical interface is connected to the first transmission optical fiber through a pluggable optical port adapter, and the second optical interface is connected to the second transmission optical fiber through a pluggable optical port adapter.

With reference to the second aspect, in certain implementations of the second aspect, the M wavelength division multiplexers and the P wavelength division demultiplexers are tapered fiber wavelength division multiplexers and tapered fiber wavelength division demultiplexers.

Based on the scheme, the tapered optical fiber wavelength division multiplexer and the tapered optical fiber wavelength division demultiplexer which are low in insertion loss, irrelevant in polarization and insensitive in temperature are used, so that the working performance of the adapter is stable, and the reliability is high. Meanwhile, the tapered optical fiber wavelength division multiplexer and the tapered optical fiber wavelength division demultiplexer are long and narrow in appearance, and the adapter can be arranged in the wire diameter of the optical cable, so that space is saved.

With reference to the second aspect, in certain implementations of the second aspect, the second interface and the power supply interface are integrated into an optoelectrical composite connector.

Based on the scheme, the integration level of the adapter is further improved by integrating the power supply interface with the input/output interface of the adapter.

In a third aspect, embodiments of the present application provide an on-board optical interconnect system. The system comprises: an adapter provided in a panel light module, a panel light port adapter, at least one light source pool module, and the first aspect or any implementation of the first aspect. Or the system comprises: an adapter provided in any one of the implementations of the second aspect or the second aspect, a panel light port adapter, a light source pool module, and a panel light port adapter. The at least one light source pool module is used for generating N light beams to the on-board light module. The on-board optical module generates the N first input signal lights based on the N light beams, and outputs the N first input signal lights to the panel optical port adapter. The panel optical port adapter is used for outputting the N first input signal lights to the adapter.

With reference to the third aspect, in certain implementations of the third aspect, when the system includes the adapter provided by the first aspect or any one of the implementations of the first aspect, each of the at least one light source cell modules includes at least one thermoelectric cooler for adjusting a temperature of one of the at least two lasers to cause the at least two lasers to output at least two of the N light beams at different temperatures.

Based on the above scheme, after equipment is inserted into the adapter provided by the embodiment of the application, the gray light source of the equipment can be not required to be replaced, an electrothermal refrigerator in the light source pool module is utilized, and based on the temperature drift characteristic of the lasers, the temperature difference between the lasers is realized, so that the lasers generate light beams with different wavelengths.

In a fourth aspect, embodiments of the present application provide a method of optical transmission. The method comprises the following steps: and receiving N first input signal lights from the equipment, wherein the N first input signal lights are signal lights corresponding to the parallel optical fiber working modes. And coupling M first input signal lights in the N first input signal lights to generate first coupled signal lights, wherein the wavelengths of the M first input signal lights are different, and the first coupled signal lights are signal lights corresponding to a wavelength division multiplexing mode. Wherein N is an integer greater than 1, and M is less than N.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the method further includes: and demultiplexing the second coupling signal light into P second input signal lights, and outputting the P second input signal lights to a second port of the first optical interface, wherein the P second input signal lights have different wavelengths. And inputting the P second input signal lights to the device. Wherein P is an integer greater than 1.

In a fifth aspect, embodiments of the present application provide a method of optical transmission. The method comprises the following steps: and receiving N first input signal lights from the equipment, wherein the N first input signal lights are signal lights corresponding to the parallel optical fiber working modes. The N first input signal lights are converted into N electrical signals. Generating N second input signal lights based on the N electrical signal modulations, the N second input signal lights having different wavelengths. And coupling the N second input signal lights to generate M first coupled signal lights, wherein the M first coupled signal lights are signal lights corresponding to a wavelength division multiplexing mode. Wherein N, M is an integer greater than 2, and N is greater than M.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the method further includes: and receiving second coupling signal light from a second transmission optical fiber, and demultiplexing the second coupling signal light into Q third input signal lights, wherein the wavelengths of the Q third input signal lights are different. And inputting the Q third input signal lights to the device. Wherein P is an integer greater than or equal to 1, and Q is an integer greater than 2.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the generating N second input signal lights based on the N electrical signal modulations includes: and amplifying the amplitude of the N electric signals, and generating N second input signal lights based on the N electric signal modulations after the amplitude amplification.

In a sixth aspect, embodiments of the present application provide a communication device, where the communication device includes the adapter in the first aspect or any of the possible implementation manners of the first aspect, or where the communication device includes the adapter in the second aspect or any of the possible implementation manners of the second aspect.

In a seventh aspect, embodiments of the present application provide a computer-readable storage medium. The computer readable storage medium stores a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of any one of the possible implementations of the fourth or fourth aspect described above, or causes the computer to perform the method of any one of the possible implementations of the fifth or fifth aspect described above.

In an eighth aspect, embodiments of the present application provide a computer program product. The computer program product comprises: a computer program which, when run, causes a computer to perform the method of any one of the possible implementations of the fourth or fourth aspect described above or causes a computer to perform the method of any one of the possible implementations of the fifth or fifth aspect described above.

In a ninth aspect, embodiments of the present application provide a communication device. The apparatus comprises a processor and a memory, the processor and the memory being coupled, the processor being configured to control the apparatus to implement the method of the fourth aspect or any one of the possible implementations of the fourth aspect or the fifth aspect.

Optionally, the processor is one or more, and the memory is one or more.

Alternatively, the memory may be integrated with the processor or the memory may be separate from the processor.

In a specific implementation process, the memory may be a non-transient (non-transitory) memory, for example, a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It should be appreciated that the associated data interaction process, for example, sending a request message, may be the process of outputting a request message from a processor, and receiving a response message may be the process of receiving a message by a processor. Specifically, the data output by the processing may be output to the transmitter, and the input data received by the processor may be from the receiver. Wherein the transmitter and receiver may be collectively referred to as a transceiver.

The processing means in the ninth aspect may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and exist separately.

The advantages of the fourth to ninth aspects may be specifically mentioned with reference to the description of the advantages of the first or second aspects, and are not repeated here.

Drawings

Fig. 1 is an on-board optical interconnect system architecture for wavelength division multiplexed modes of operation.

Fig. 2 is an on-board optical interconnect system architecture for parallel fiber modes of operation.

Fig. 3 is a communication device 300 employing optical interconnect technology suitable for use in embodiments of the present application.

Fig. 4 is a schematic block diagram of an adapter 400 provided in an embodiment of the present application.

Fig. 5 is a schematic block diagram of an adapter 500 provided in an embodiment of the present application.

Fig. 6 is a schematic block diagram of an adapter 600 provided herein.

Fig. 7 is a schematic flow chart of a method 700 for optical transmission according to an embodiment of the present application.

Fig. 8 is a schematic flow chart of a method 800 for optical transmission according to an embodiment of the present application.

Fig. 9 is a schematic flow chart of a method 900 for optical transmission according to an embodiment of the present application.

Fig. 10 is a schematic flow chart of a method 1000 for optical transmission according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication device 1100 provided by an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication device 1200 provided in an embodiment of the present application.

Detailed Description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The following description is made in order to facilitate understanding of the embodiments of the present application.

The words "first," "second," and the like, as well as various numerical designations in the first, following written description of the embodiments of the application or the figures, are merely for descriptive convenience and are not necessarily for describing particular sequences or successes and are not intended to limit the scope of the embodiments of the application. For example, to distinguish between different ports, etc.

The terms "comprises," "comprising," and "having," in the context of the present application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Third, in the present application embodiments, the words "exemplary" or "such as" are used to mean examples, illustrations, or descriptions, and embodiments or designs described as "exemplary" or "such as" should not be construed as being preferred or advantageous over other embodiments or designs. The use of the word "exemplary" or "such as" is intended to present the relevant concepts in a concrete fashion to facilitate understanding.

Several terms which are referred to in this application are first briefly described.

In-board optical interconnect system: the on-board optical interconnection system mainly comprises three components, namely a plurality of on-board optical modules (OBOs) or Optical Engines (OE), a plurality of panel optical port adapters, such as multi-fiber push on (MPO), and a plurality of light source pool modules. Wherein, the board optical module comprises a plurality of independent modulators and receivers. The signal optical fiber of the plate optical module is connected with the optical cable outside the equipment through the optical port adapter of the equipment panel. The operation mode of the on-board optical interconnection system is divided into a wavelength division multiplexing operation mode (shown in fig. 1) and a parallel optical fiber operation mode (shown in fig. 2). When working in the wavelength division multiplexing working mode, the light source pool is a color light source. At this time, each light source pool module may include a plurality of lasers, and in general, each laser passes through 1: the power of K is split into K individual modulators in the panel optical module, it being understood that K is an integer greater than 1 and in fig. 1K is 2. When working in the parallel optical fiber working mode, the light source pool is a gray light source.

Equally dividing and crossing: as shown in fig. 1, after the wavelengths output from the light source pool in the board optical interconnection system are input to the board optical module, the wavelengths received by the adjacent modulation channels are the same, and after the modulation of the electrical signals, the wavelengths of the signal lights output from the adjacent modulators are also the same, so that the adjacent modulators cannot be directly connected with the wavelength division multiplexer. Thus, one can choose to have a ratio of 1: the K beam splitter and the modulator are equally crossed by adopting on-chip devices such as waveguide crossing and the like on an optical chip. Or the equipartition cross is realized between the modulator and the wavelength division multiplexer through waveguide cross and other on-chip devices or outside the optical chip through optical fiber cross.

Wavelength division multiplexing mode of operation: when the equipment of the board optical interconnection system works in a wavelength division multiplexing working mode, the light source pool module on the equipment panel adopts a color light source pool module to output lasers with various wavelengths conforming to the relevant communication protocol, and the effect of transmitting multi-wavelength signal light in a single transmission optical fiber is realized through the wavelength division multiplexer. Accordingly, the wavelength division multiplexing device is used for receiving the multi-wavelength signal light transmitted by other devices.

Parallel optical fiber working mode: when the equipment of the board optical interconnection system works in the parallel optical fiber working mode, a light source pool on the equipment panel adopts a gray light source pool module, and at the moment, a wavelength division multiplexer and a wavelength division demultiplexer are not needed in the system, and when the output signal light is transmitted in a transmission optical fiber, a single transmission optical fiber transmits one wavelength.

With the development of broadband services such as 5G, cloud computing, virtual reality, high-definition video and the like, the internet data flow is exponentially increased, and a data center is in a high-speed development and construction period. High capacity data exchange services require interconnections between data center servers to have large bandwidth, low latency, high density, and low power consumption characteristics. Meanwhile, the development of high performance computing has put higher demands on the interconnection bandwidth between large scale integrated circuit chips, and the electrical interconnection has failed to meet the demands, and the optical interconnection technology stands out.

Fig. 3 is a communication device 300 employing optical interconnect technology suitable for use in embodiments of the present application. The communication device 300 may be a cluster router or other type of communication device, such as a switch, a transport network device, an optical line terminal (optical line terminal, OLT) of an access network, etc. As shown in fig. 3, the communication device 300 includes an optical interconnect system 30 and a system circuit board 50. The communication device 300 performs information interaction with external other devices through the optical interconnection system 30. The optical interconnection system 30 includes a substrate 301 and a signal transceiver unit 303 disposed on the substrate 301. The substrate 301 includes a circuit board (printed circuit board, PCB). The signal transceiver 303 includes a main chip (payload IC) 31 and a plurality of on-board optical modules 33 (labeled OBO in fig. 3). The on-board optical module 33 is configured to receive the output electrical signal output by the main chip 31 and convert the output electrical signal into an output optical signal for outputting to the opposite end, and receive the input optical signal from the opposite end and convert the input optical signal into an input electrical signal for delivering to the main chip 31. In addition, the optical interconnection system 30 further includes an optical cross section 305, and the signal transceiver unit 303 further includes an input-output optical fiber 37. The input/output optical fiber 37 is connected between the optical interface of each signal transmitting/receiving unit 303 and the optical cross member 305. In some scenarios, optical crossbar 305 is not necessary under some hardware systems, such as line cards (line cards) and switches.

It should be understood that fig. 3 shows only one configuration of the communication device 300, and the present application is not limited to the configuration of the communication device, that is, for other configurations of the communication device, and is also applicable to the embodiments of the present application.

Currently, for an optical communication device as shown in fig. 3, it is often necessary to support interfacing of different operating states or protocols, i.e. switching from a wavelength division operating mode to a non-wavelength division operating mode, or switching from a non-wavelength division operating mode to a wavelength division operating mode. However, for a device in a board optical interconnection system, the state of the system when it is operating is already determined at the time of shipment, for example, the state of the device when it is operating may be determined by whether the board optical module in the device contains a wavelength division multiplexer and a wavelength division demultiplexer. In other words, due to the limitation of the device of the on-board optical interconnection system, it is difficult for the user to flexibly adjust the operation state of the device on the use interface, so that the device is limited by the use scenario.

Based on the above-mentioned problems, the embodiments of the present application provide an adapter and a communication system, where when the pluggable adapter provided in the embodiments of the present application is used in combination with an optical communication device as shown in fig. 3 (i.e., the adapter is plugged into an optical port adapter of the optical communication device through manual operation), signal light emitted from the optical communication device in a non-wavelength division multiplexing operation state can be converted into emitted signal light from the optical communication device in a wavelength division multiplexing operation state. In other words, when the optical communication device is combined with the adapter provided in the embodiment of the present application, the optical communication device generates a signal equivalent to operating in the wavelength division multiplexing operation state. The adapter provided by the embodiment of the application can be plugged into the optical communication equipment, so that the switching of the user side can be realized, and the flexibility of the switching of the working state of the optical communication equipment is further improved.

Fig. 4 is a schematic block diagram of an adapter 400 provided in an embodiment of the present application. As shown in fig. 4, the adapter 400 includes a first optical interface 410, a wavelength division multiplexer 421, and a wavelength division multiplexer 422.

Specifically, the first optical interface 410 includes 8 first ports and 8 second ports. The 8 first ports may be pluggable onto an optical interface (e.g., an optical interface of a type MPO) of the device panel as shown in fig. 3. The 8 second ports are connected with the input ports of the wavelength division multiplexer 421 and the wavelength division multiplexer 422 in a uniformly-distributed and crossed mode. The output port of wavelength division multiplexer 421 is coupled to first transmission optical fiber 441 and the output port of wavelength division multiplexer 422 is coupled to first transmission optical fiber 442.

It should be noted that, in the adapter 400 provided in the present application, the input ports of the wavelength division multiplexer 421 and the wavelength division multiplexer 422 and the second port of the optical interface of the device panel implement equal division crossing through optical fiber crossing. Or, the equipartition crossing is realized by the wave guide crossing on the wave division multiplexer chip.

In one implementation manner, when the adapter 400 provided in the embodiment of the present application is plugged onto the on-board optical interconnection device in the parallel optical fiber operation mode as shown in fig. 3, after the device in the parallel optical fiber operation mode outputs 8 first input signal lights (λ1- λ4 as shown in fig. 4) through the optical port adapter, the 8 first ports of the first optical interface 410 of the adapter 400 receive the 8 first input signal lights from the device, and outputs the 8 first input signal lights to the wavelength division multiplexer 421 and the wavelength division multiplexer 422 through the 8 second ports, respectively. The wavelength division multiplexer 421 couples the first input signal lights (λ1 to λ4) having different wavelengths from 4 of the 8 first input signal lights, generates first coupled signal lights, and outputs the first coupled signal lights to the first transmission optical fiber 441. Similarly, the wavelength division multiplexer 421 couples the 4 first input signal lights with different wavelengths to generate a first coupled signal light, and outputs the first coupled signal light to the first transmission optical fiber 442. The adaptation 400 thus completes the conversion of the output signal light of the device in the parallel optical fiber mode of operation into output signal light in the wavelength division multiplexing mode of operation.

Based on the above scheme, the adapter provided by the embodiment of the application can be plugged into the optical port of the on-board optical interconnection device to convert the output signal light of the device in the parallel optical fiber working mode into the output signal light in the wavelength division multiplexing working mode, so that the effect of converting the working mode of the client interface can be realized.

In another implementation, the adaptation 300 further includes a wavelength-division demultiplexer 431 and a wavelength-division demultiplexer 432. Wherein an input terminal of the wavelength division demultiplexer 431 is connected to the second transmission optical fiber 451, an input terminal of the wavelength division demultiplexer 432 is connected to the second transmission optical fiber 451, and output terminals of the wavelength division demultiplexer 431 and the wavelength division demultiplexer 432 are connected to the second port of the first optical interface 410.

Specifically, the wavelength division demultiplexer 431 is configured to optically demultiplex the second coupling signal into 4 second input signal lights (λ1- λ4) and output the 4 second input signal lights of λ1- λ4 to the 4 second ports of the first optical interface 421, respectively. Similarly, the wavelength demultiplexer 431 demultiplexes the second coupling signal light received through the second transmission optical fiber 452 into 4 second input signal lights (λ1- λ4), and outputs the 4 second input signal lights of λ1- λ4 to the other 4 second ports of the first optical interface 421, respectively. Subsequently, the first optical interface 410 transmits the 8 and second signal lights to the on-board optical interconnection device through the 8 first ports.

It should be appreciated that in the adapter 300 shown in fig. 4, the wavelength division multiplexing and wavelength division demultiplexing take place using different first and second ports in the first optical interface 410, i.e. the first port for wavelength division multiplexing is different from the first port for wavelength division demultiplexing, as is the case for the second port. Further, the number of first and second ports of the first optical interface 410 is merely an example and not a limitation, and in particular, the number of first and second ports of the first optical interface 410 may be set according to the characteristics (1:K) and the number of splitters in the optical interconnection device, for example, when 4 splitters are 1:4 splitters, the number of first and second ports of the first optical interface 410 may be set to 16. Or the number of first and second ports of the first optical interface 410 is related to the number of modulators.

In the adaptor 300, the first transmission optical fiber 441 and the first transmission optical fiber 442 may be connected to the wavelength division multiplexer 421 and the wavelength division multiplexer 422 by fusion, and the second transmission optical fiber 451 and the second transmission optical fiber 452 may be connected to the wavelength division demultiplexer 451 and the wavelength division demultiplexer 452 by fusion. The fusion welding mode can reduce the insertion loss of signal light transmission, thereby ensuring the stability of the system.

Further, in the present embodiment, the wavelength division multiplexer 421, the wavelength division multiplexer 422, the wavelength division demultiplexer 431, the wavelength division demultiplexer 432 may be implemented as an optical element based on a tapered fiber (tapered fiber) coupler. The wavelength division multiplexer and the wavelength division demultiplexer realized based on the tapered fiber coupler have the characteristics of low insertion loss, irrelevant polarization and irrelevant temperature, and can improve the stability of the system, thereby improving the performance of the adapter. In addition, the tapered fiber-based wavelength division multiplexer and wavelength division demultiplexer have long and narrow external dimensions, and thus can be disposed within the wire diameter of the optical cable, thereby reducing the volume of the adapter.

Fig. 5 is a schematic block diagram of an adapter 500 provided in an embodiment of the present application. As shown in fig. 5, the adapter 500 includes a first optical interface 410, a wavelength division multiplexer 421, a wavelength division multiplexer 422, and a second optical interface 460.

Specifically, the second optical interface 460 may include two third ports for inputting the first coupling signal light and two fourth ports for outputting the first coupling signal light. Wherein the third port is configured to receive two first coupled signal lights from the wavelength division multiplexer 421 and the wavelength division multiplexer 422. The fourth port is used for inputting the first coupling signal light into the first transmission optical fiber 441 and the first transmission optical fiber 442, respectively.

In addition, the second optical interface 460 may further include two fourth ports for inputting the second coupling signal light and two third ports for outputting the second coupling signal light. Wherein the fourth port is configured to receive the second coupling signal light from the second transmission fiber 451 and the second transmission fiber 452. The third port is used to input two second coupling signal lights into the wavelength division demultiplexer 431 and the wavelength division demultiplexer 432, respectively.

It should be appreciated that wavelength division multiplexing and wavelength division demultiplexing takes place with third and fourth ports that are different in the second optical interface 460. And the number of third and fourth ports in the adapter 500 shown in fig. 5 is by way of example only and not by way of limitation.

The first transmission optical fibers 441, 442 and the second transmission optical fibers 451, 452 are connected to the fourth port of the second optical interface 460 through pluggable optical port adapters. Based on this scheme, the first transmission optical fibers 441, 442 and the second transmission optical fibers 451, 452 are connected to the optical port adapter 500 in a pluggable manner, so that the effects of improving user operation and being convenient to use can be achieved.

In addition, the functions of the first optical interface 410, the wavelength division multiplexer 421 and the wavelength division multiplexer 422 may refer to the description of fig. 4 above, and will not be repeated here.

Fig. 6 is a schematic block diagram of an adapter 600 provided herein. As shown in fig. 6, the adapter includes a first optical interface 610, a Photo Detector (PD) 620, namely PD 621, PD622, PD623, PD624 shown in fig. 6, an opto-electronic modulator 630, such as an out-tunable laser (externally modulated laser, EML) or direct-tunable lasers (directly modulated laser, DML) 631, 632, 633 and 634 shown in fig. 6, a wavelength division multiplexer 640, and a power supply 650.

Specifically, the first optical interface 610 includes a first port and a second port. The first port is pluggable to a panel socket of the optical interconnection device and is used for receiving first input signal light from the optical interconnection device. The second ports are connected to input ports of the photo detector 620 for inputting first input signal input lights into the photo detector 620, respectively, specifically, 4 paths of first input signal lights are input to the photo detector 620 in the PD 621, the PD622, the PD623, the PD624 through the 4 second ports, respectively, for converting the first input signal lights into electric signals and outputting the electric signals to the photo modulator 630, respectively, that is, the PD 621, the PD622, the PD623, the PD624 convert 1 path of first input signal lights correspondingly received into electric signals, respectively, and output the converted 4 paths of electric signals to the 631, 632, 633, and 634, respectively. 631. 632, 633 and 634 generate 4 paths of second input signal lights having different wavelengths by modulation of the received electric signals, and all of the 4 paths of second input signal lights are output to the wavelength division multiplexer 640. The wavelength division multiplexer 640 couples the 4 second input signal lights, generates 1 first coupled signal light, and transmits the first coupled signal light to the first transmission optical fiber 680. The power interface 650 is used to power the adapter 600. The first input signal light is output signal light of the optical interconnection device in a parallel optical fiber working mode, and the first coupling signal light corresponds to the output signal light of the optical interconnection device in a wavelength division multiplexing working mode.

That is, after the adapter provided in the embodiment of the present application is inserted into the optical interconnection device that operates in the parallel optical fiber operation mode, the output signal light of the optical interconnection device that operates in the parallel optical fiber operation mode may be converted into the output signal light of the optical interconnection device that operates in the wavelength division multiplexing operation mode. Because the adapter provided by the embodiment of the application can be flexibly plugged into the optical interconnection equipment, the convenience of operation of the client is improved, and the user experience is further improved.

It should be noted that fig. 6 is only an example and not a limitation, that is, the adaptor 600 provided in the embodiment of the present application may include N photodetectors 620, N photomodulators 630, and M wavelength division multiplexers 640, and optionally, the adaptor 600 may further include N amplifiers 660 and P wavelength division multiplexers 670.

In one implementation, the outputs of the N photodetectors 620 are coupled to the inputs of the N photomodulators 630, and the outputs of the N photomodulators 630 are coupled to the inputs of the M wavelength division multiplexers. Specifically, N photodetectors 620 are used to convert the N first input signal lights received into N electrical signals. The N photo-modulators 630 respectively receive the N electrical signals output from the N photo-detectors 620, modulate the N electrical signals to generate N second input signal lights with different wavelengths, and output the N second input signal lights with different wavelengths to the M wavelength division multiplexers. The M wavelength division multiplexers just couple the received N second input signals with different wavelengths into M first coupling signal lights and output the M first coupling signal lights to M first transmission optical fibers.

In another implementation, the adapter 600 further includes N amplifiers, such as trans-impedance amplifier (TIA), with the outputs of the N photodetectors 620 connected to the inputs of the N amplifiers 660. The output terminals of the N amplifiers are connected to the input terminals of the N electro-optical modulators 630, and the output terminals of the N electro-optical modulators 630 are connected to the input terminals of the M wavelength division multiplexers. Specifically, the photodetector 620 is configured to convert the received N first input signal lights into N electrical signals. The N amplifiers receive the N electrical signals, amplify the amplitudes of the N electrical signals, and output the N electrical signals amplified in the amplitudes to the N photoelectric modulators 630, respectively. The N electro-optical modulators 630 respectively receive the N electrical signals output from the N amplifiers 660, modulate the N electrical signals to generate N second input signal lights with different wavelengths, and output the N second input signal lights with different wavelengths to the M wavelength division multiplexers. The M wavelength division multiplexers just couple the received N second input signals with different wavelengths into M first coupling signal lights and output the M first coupling signal lights to M first transmission optical fibers.

It should be appreciated that when the adapter 600 includes P wavelength demultiplexers 670, the first ports of the adapter 600 may include N first ports for wavelength division multiplexing and another N first ports for wavelength division demultiplexing. And the second ports of the adapter 600 may include N second ports for wavelength division multiplexing and another N second ports for wavelength division multiplexing. I.e., the number of first ports or second ports of the first optical interface 610 should be greater than N, i.e., the first ports or second ports for wavelength division multiplexing are different ports from the first ports or second ports for wavelength division multiplexing.

Specifically, as shown in fig. 6, for the wavelength division multiplexing process, the optical interconnection device outputs 4 paths of first signal light with wavelengths 1310, and the 4 paths of first signal light are respectively input into the PDs 621 to 624 through the first optical interfaces, and each PD performs photoelectric conversion on the received first signal light and outputs 4 electrical signals respectively. The 4-way electrical signal may be directly input to a corresponding one of the EML/DML 631-EML/DML 634. Or the 4 paths of electric signals are input to the corresponding EML/DML after passing through the corresponding one of TIAs 661-TIA 664. After receiving a corresponding electrical signal, the EML/DML 631-EML/DML 634 modulates the electrical signal to generate second input signal lights, for example, generates 4 second input signal lights with wavelengths corresponding to 1270nm, 1290nm, 1310nm and 1330nm, and inputs the second input signal lights with the 4 wavelengths into the wavelength division multiplexer 640. The wavelength division multiplexer 640 couples the second input signal light of 4 wavelengths to generate 1-path first coupled signal light, and inputs the first coupled signal light into the first transmission optical fiber 680.

For the wavelength division demultiplexing process, the wavelength division demultiplexer 670 receives a second coupled optical signal including four wavelength signal lights of 1270nm to 1310nm wavelengths through the second transmission optical fiber 690, demultiplexes the second coupled optical signal into 4 third input signal lights, for example, 4 third input signal lights of 1270nm, 1290nm, 1310nm and 1330nm wavelengths, respectively, and outputs the 4 third input signal lights to the second port of the first optical interface 610 and is input into the device, for example, in the board optical module receiving end of the input device, through the first port of the first optical interface 610.

In one possible implementation, the first transmission fiber 680 is connected to the wavelength division multiplexer 640 by fusion splicing, and likewise, the second transmission fiber 690 is connected to the wavelength division demultiplexer 670 by fusion splicing.

In another possible implementation, the light source interface 650 of the adapter 600 may be a optoelectric composite connector 650, where the optoelectric composite connector 650 integrates a power interface and a second optical interface, where the second optical interface may be connected to the first transmission fiber 680 and the second transmission fiber 690 via a pluggable optical port adapter. In this case, it should be noted that the third port number and the fourth port number in the optoelectric composite connector 650 of the adapter 600 should be equal to or greater than the sum of the numbers of the wavelength division multiplexer 640 and the wavelength division demultiplexer 670, that is, the third port number and the fourth port number are greater than (m+p).

It should be appreciated that in this adapter 600, the wavelength division multiplexer 640 and the wavelength division demultiplexer 670 may be implemented as optical elements based on tapered fiber (fused fiber) couplers. The beneficial effects of this element can be seen with reference to the relevant description in fig. 4, and will not be repeated here.

Fig. 7 is a schematic flow chart of a method 700 for optical transmission according to an embodiment of the present application. In particular, the method 700 may be applied in the adapter 400 as shown in fig. 4 or may be applied in the adapter 500 as shown in fig. 5. The method 700 is described in conjunction with fig. 4. As shown in fig. 7, the method includes the following steps.

S701, receiving N first input signal lights from the optical interconnection device.

Specifically, in the adapter 400, the first optical interface 410 receives N first input signal lights from an optical interconnection device, where the optical interconnection device operates in a parallel optical fiber operation mode, and the N first input signal lights are signal lights corresponding to the parallel optical fiber operation mode.

S702, M first input signal lights in the N first input signal lights are coupled to generate first coupled signal lights.

Specifically, in the adapter 400, the wavelength division multiplexer 421 and the wavelength division multiplexer 422 couple M first input signal lights out of the N first input signal lights, respectively, and generate corresponding first coupled signal lights. The wavelength of the M first input signal lights is different, and the first coupled signal lights are signal lights corresponding to the wavelength division multiplexing mode of the optical interconnection device.

Based on the method for transmitting light provided by the embodiment of the application, the pluggable adapter 400 can be used for converting the signal light corresponding to the parallel optical fiber working mode into the signal light corresponding to the wavelength division multiplexing mode, so that the purpose of conversion at a client interface is realized, and the flexibility of system operation is improved.

Fig. 8 is a schematic flow chart of a method 800 for optical transmission according to an embodiment of the present application. In particular, the method 800 may be applied in the adapter 400 as shown in fig. 4 or may be applied in the adapter 500 as shown in fig. 5. The method 800 is described in connection with fig. 4. As shown in fig. 8, the method includes the following steps.

S801, the second coupling signal light is received.

Specifically, in the adapter 400, the wavelength division demultiplexer 431 and the wavelength division demultiplexer 432 receive second coupling signal light from the external other device through the second transmission optical fibers 451 and 452, respectively.

S802, demultiplexing the second coupling signal light into P second input signal lights.

Specifically, in the adapter 400, the wavelength division demultiplexer 431 and the wavelength division demultiplexer 432 demultiplexes the received second coupling signal light into 4 second input signal lights having different wavelengths, respectively.

S803, inputting P second input signal lights into the optical interconnection device.

Specifically, in the adapter 400, the wavelength division demultiplexer 431 and the wavelength division demultiplexer 432 input the 4 different-wavelength second input signal lights generated in S802 into the optical interconnection device through the first optical interface 410, respectively.

Based on the above optical transmission method, wavelength division multiplexing can be completed through the pluggable adapter 400, and input signal light with different wavelengths can be provided for the device, so that information interaction with other devices can be completed.

Fig. 9 is a schematic flow chart of a method 900 for optical transmission according to an embodiment of the present application. In particular, the method 900 may be applied to an adapter 600 as shown in FIG. 6. The method 900 is described in connection with fig. 6. As shown in fig. 9, the method includes the following steps.

S901 receives N first input signal lights from the optical interconnection device.

Specifically, in adapter 600, first optical interface 610 receives N first input signal lights from an optical interconnection device that operates in a parallel optical fiber operation mode, where the N first input signal lights are signal lights corresponding to the parallel optical fiber operation mode.

S902, converting the N first input signal lights into N electrical signals.

Specifically, in the adapter 600, N photodetectors 620 convert N first input signal lights into N electrical signals, respectively.

S903, generating N second input signal lights based on N electrical signal modulations.

Specifically, in adapter 600, N electro-optical modulators modulate N electrical signals to generate N second input signal lights, where the N second input signal lights have different wavelengths.

S904, coupling N second input signal lights to generate first coupled signal lights.

Specifically, in adapter 600, wavelength division multiplexer 640 couples N second input signal lights to generate a first coupled signal light. The first coupling signal light is signal light corresponding to the wavelength division multiplexing mode of the optical interconnection equipment.

Based on the method for transmitting light provided in the embodiment of the present application, the pluggable adapter 600 may convert signal light with the same wavelength corresponding to the parallel optical fiber working mode into signal light corresponding to the wavelength division multiplexing mode, so as to achieve the purpose of conversion at the client interface.

Fig. 10 is a schematic flow chart of a method 1000 for optical transmission according to an embodiment of the present application. In particular, the method 1000 may be applied to an adapter 600 as shown in FIG. 6. The method 1000 is described in connection with fig. 6. As shown in fig. 10, the method includes the following steps.

S1001, receiving the second coupling signal light.

Specifically, in adapter 600, wavelength division demultiplexer 670 receives second coupling signal light from an external device through second transmission fiber 690.

S1002, demultiplexing the second coupled signal light into Q third input signal lights.

Specifically, in adapter 600, wavelength-division demultiplexer 670 demultiplexes the received second coupled signal light into 4 different wavelength third input signal lights.

S1003, Q third input signal lights are input into the optical interconnection device.

Specifically, in adapter 600, wavelength division demultiplexer 670 optically inputs the 4 different-wavelength third input signals generated in S1002 into the optical interconnection device through first optical interface 410.

Based on the above optical transmission method, the present application completes the wavelength division multiplexing process through the pluggable adapter 600, provides input signal light with different wavelengths for the device, and completes information interaction with other devices.

Fig. 11 is a schematic block diagram of a communication device 1100 provided by an embodiment of the present application. The communication device 1100 includes a transceiver unit 1110 and a processing unit 1120. The transceiver 1110 may exchange signal light with an external optical interconnection device, and the processing unit 1120 is used for performing data processing. The transceiver unit 1110 may also be referred to as a communication interface or a communication unit.

Optionally, the communication device 1100 may further include a storage unit, where the storage unit may be used to store instructions and/or data, and the processing unit 1120 may read the instructions and/or data in the storage unit, so that the communication device 1100 implements the action S702 performed by the adapter in the foregoing method embodiment (method 700). Or acts S802 and S803 performed by the adapter in the method embodiment (method 800) described above. Or acts S902-S904 performed by the adapter in the method embodiment (method 900) described above. Or acts S1002 and S1003 performed by the adapter in the method embodiment (method 1000) described above.

As shown in fig. 12, the embodiment of the present application further provides a communication apparatus 1200. The communication device 1200 comprises a processor 1210, the processor 1210 being coupled to a memory 1220, the memory 1220 being for storing computer programs or instructions and/or data, the processor 1210 being for executing the computer programs or instructions and/or data stored by the memory 1220, such that the method in the method embodiment of fig. 7, 8, 9 or 10 above is performed, i.e. the processor 1210 is for carrying out the operations performed by the adapter in the method embodiment above.

Optionally, the communication device 1200 includes one or more processors 1210.

Optionally, as shown in fig. 12, the communication device 1200 may further include a memory 1220.

Optionally, the communications apparatus 1200 can include one or more memories 1220.

Alternatively, the memory 1220 may be integrated with the processor 1210 or provided separately.

Optionally, as shown in fig. 12, the communication device 1200 may further include a transceiver 1230, the transceiver 1230 being configured to receive and/or transmit signals. For example, the processor 1210 may be configured to control the transceiver 1230 to receive and/or transmit signals.

It is to be appreciated that the processor in embodiments of the present application may be a central processing unit (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general purpose processor may be a microprocessor, but in the alternative, it may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in random access memory (random access memory, RAM), flash memory, read-only memory (ROM), programmable ROM (PROM), erasable programmable PROM (EPROM), electrically erasable programmable EPROM (EEPROM), registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between two or more computers. Furthermore, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted across a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems and apparatuses may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An adapter, comprising: the first port of the first optical interface can be plugged into the equipment, the second port of the first optical interface is connected with the input port of the at least one wavelength division multiplexer in a uniformly distributed and crossed mode, the output port of the at least one wavelength division multiplexer is connected with a first transmission optical fiber,

the first optical interface is configured to receive N first input signal lights from the device, and output the N first input signal lights to the at least one wavelength division multiplexer, where the N first input signal lights are signal lights corresponding to a parallel optical fiber working mode;

The at least one wavelength division multiplexer is configured to couple M first input signal lights of the N first input signal lights to generate first coupled signal lights, where wavelengths of the M first input signal lights are different, the first coupled signal lights are signal lights corresponding to a wavelength division multiplexing mode,

wherein N is an integer greater than or equal to 2, M is an integer greater than or equal to 1, and M is less than N.

2. The adapter of claim 1, wherein the adapter further comprises: at least one wavelength division demultiplexer, wherein the input end of the at least one wavelength division demultiplexer is connected with a second transmission optical fiber, the output end of the at least one wavelength division demultiplexer is connected with a second port of the first optical interface,

the at least one wavelength division demultiplexer is configured to demultiplex the second coupling signal light into P second input signal lights, and output the P second input signal lights to the second port of the first optical interface, where the wavelengths of the P second input signal lights are different;

the first optical interface is used for inputting the P second input signal lights to the equipment,

wherein P is an integer greater than 1.

3. The adapter of claim 2 wherein the adapter is configured to receive the adapter,

The output port of the at least one wavelength division multiplexer is connected with a first transmission optical fiber, and the output port of the at least one wavelength division multiplexer comprises: the output port of the at least one wavelength division multiplexer is connected with the first transmission optical fiber in a fusion mode;

the input port of the at least one wavelength division demultiplexer is connected to a second transmission optical fiber, comprising: the input port of the at least one wavelength division multiplexer is connected with the second transmission optical fiber in a fusion connection mode.

4. The adapter of claim 2 wherein the adapter further comprises a second interface,

the output port of the at least one wavelength division multiplexer is connected with a first transmission optical fiber, and the output port of the at least one wavelength division multiplexer comprises:

the output port of the at least one wavelength division multiplexer is connected with the first transmission optical fiber through the second optical interface;

the input port of the at least one wavelength division demultiplexer is connected to a second transmission optical fiber, comprising:

the input port of the at least one wavelength division demultiplexer is connected with the second transmission optical fiber through the second optical interface;

the second interface is configured to input the first coupling signal light into the first transmission optical fiber, and transmit the second coupling signal light of the second transmission optical fiber into the at least one wavelength-division demultiplexer.

5. The adapter of claim 4, the second optical interface being coupled to the first transmission fiber via a pluggable optical port adapter, the second optical interface being coupled to the second transmission fiber via a pluggable optical port adapter.

6. The adapter of any one of claims 2 to 5 wherein the at least one wavelength division multiplexer and the at least one wavelength division demultiplexer are a tapered fiber wavelength division multiplexer and a tapered fiber wavelength division demultiplexer.

7. An adapter for switching modes of operation of a device, comprising: the first port of the first optical interface can be plugged into equipment, the second port of the first optical interface is connected with the input ports of the N photoelectric detectors, the output ports of the N photoelectric modulators are connected with the input ports of the M wavelength division multiplexers, the output ports of the M wavelength division multiplexers are connected with a first transmission optical fiber,

the first optical interface is configured to receive N first input signal lights from the device, and input the N first input signal lights to the N photodetectors, where the N first input signal lights are signal lights corresponding to a parallel optical fiber working mode;

The N photodetectors are configured to convert the N first input signal lights into N electrical signals, and output the N electrical signals to the N photoelectric modulators, respectively;

the N photoelectric modulators modulate and generate N second input signal lights based on the N electrical signals, and respectively output the N second input signal lights to the M wavelength division multiplexers, where the wavelengths of the N second input signal lights are different;

the M wavelength division multiplexers are configured to couple the N second input signal lights to generate M first coupled signal lights, and transmit the M first coupled signal lights to the first transmission optical fiber, where the M first coupled signal lights are signal lights corresponding to a wavelength division multiplexing mode;

the power interface is used for supplying power to the adapter,

wherein N is an integer greater than or equal to 2, M is an integer greater than or equal to 1, and N is greater than M.

8. The adapter of claim 7, wherein the adapter further comprises: the input ports of the P demultiplexers are connected with a second transmission optical fiber, the output ends of the P demultiplexers are connected with the second port of the first optical interface,

Each of the P wavelength division demultiplexers is configured to receive a second coupling signal light from the second transmission optical fiber, demultiplex the second coupling signal light into Q third input signal lights, and output the Q third input signal lights to a second port of the first optical interface, where wavelengths of the Q third input signal lights are different;

the first optical interface is used for inputting the Q third input signal lights to the equipment,

wherein P is an integer greater than or equal to 1, and Q is an integer greater than or equal to 2.

9. The adapter of claim 7 or 8, wherein the adapter further comprises: n amplifiers, the input ports of the N amplifiers are respectively connected with the output ports of the N photoelectric detectors, the output ports of the N amplifiers are respectively connected with the input ports of the N photoelectric modulators,

the N amplifiers are used for amplifying the amplitude of the N electric signals and respectively outputting the N electric signals with the amplified amplitude to the N photoelectric modulators.

10. The adapter of claim 8 wherein the adapter is configured to receive the adapter,

the output ports of the M wavelength division multiplexers are connected with a first transmission optical fiber, and the M wavelength division multiplexers comprise: the output ports of the M wavelength division multiplexers are connected with the first transmission optical fiber in a fusion mode,

The input ports of the P wavelength division demultiplexers are connected to a second transmission optical fiber, including: the input ports of the P wave-division multiplexing devices are connected with the second transmission optical fiber in a fusion connection mode.

11. The adapter of claim 8 wherein the adapter further comprises a second interface,

the output ports of the M wavelength division multiplexers are connected with a first transmission optical fiber, and the M wavelength division multiplexers comprise:

the output ports of the M wavelength division multiplexers are connected to the first transmission optical fiber through the second optical interface,

the input ports of the P wavelength division demultiplexers are connected to a second transmission optical fiber, including:

the input ports of the P wavelength division demultiplexers are connected to the second transmission optical fiber through the second optical interface,

the second interface is configured to input the M first coupling signal lights into the first transmission optical fiber, and transmit the second coupling signal lights of the second transmission optical fiber into the P wavelength division demultiplexer.

12. The adapter of claim 11 wherein the second optical interface is coupled to the first transmission fiber via a pluggable optical port adapter and the second optical interface is coupled to the second transmission fiber via a pluggable optical port adapter.

13. The adapter according to any one of claims 8 to 12, wherein the M wavelength division multiplexers and the P wavelength division demultiplexers are tapered fiber wavelength division multiplexers and tapered fiber wavelength division demultiplexers.

14. The adapter of any one of claims 11 to 13 wherein the second interface and the power interface are integrated as a optoelectrical composite connector.

15. An on-board optical interconnect system, comprising: a panel light module, a panel light port adapter, at least one light source cell module, an adapter according to any of the preceding claims 1 to 6, or an adapter according to any of the preceding claims 7 to 14,

the at least one light source pool module is used for generating N light beams to the on-board light module;

the on-board optical module generates the N first input signal lights based on the N light beams and outputs the N first input signal lights to the panel optical port adapter;

the panel optical port adapter is used for outputting the N first input signal lights to the adapter.

16. The system of claim 15, wherein when the system comprises the adapter of any one of claims 1 to 6, each of the at least one light source cell modules comprises at least one thermoelectric cooler for adjusting the temperature of one of the at least two lasers to cause the at least two lasers to output at least two of the N light beams at different temperatures and at least two lasers.

17. A communication device comprising an adapter according to any of claims 1 to 6 or an adapter according to any of claims 7 to 14.