Optical components, optical switching complete interconnection systems, and communication systems

By integrating optical switching switches within optical components, the solution addresses bandwidth limitations and optical link loss in existing switching systems, enhancing communication efficiency and speed.

JP7839289B2Active Publication Date: 2026-04-01HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-01-09
Publication Date
2026-04-01

AI Technical Summary

Technical Problem

Current switching technologies face limitations in increasing bandwidth and reducing optical link loss in electrical and optical switching systems, particularly in fully interconnected and star interconnected architectures.

Method used

Integration of an optical switching switch within optical components, enabling direct service switching between components, and utilizing 1*N or N*N optical switching switches to reduce backplane losses and enhance bandwidth.

Benefits of technology

The solution achieves reduced backplane losses and increased bandwidth by allowing direct optical component connections, improving response speed to the nanosecond range.

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Abstract

The embodiments of the present application provide an optical component, an optical switching complete interconnection system, and a communication system to reduce the backplane loss of an optical signal between the optical component and a switching node. The optical component specifically includes a service processing module, an optical / electrical conversion module, a multiplexer, an optical switching switch, an optical receiving module, and an optical connector. When the optical component serves as a transmitting end, a first electrical signal generated by the service processing module is converted by the optical / electrical conversion module to generate a first optical signal, and the first optical signal is multiplexed by using the multiplexer and output to the optical component of the next hop through the optical switching switch and the optical connector. When the optical component serves as a receiving end, the optical connector receives a second optical signal output by the optical connector of the optical component of the previous hop, and the second optical signal is demultiplexed by using the optical receiving module and output to the optical / electrical conversion module, and the second optical signal is converted by the optical / electrical conversion module to generate a second electrical signal, and the second electrical signal is output to the service processing module.
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Description

Technical Field

[0001] This application relates to the field of optical communication, and more particularly, to optical components, optical switching full interconnection systems, and communication systems.

Background Art

[0003] With the development of communication technology, the requirements for the capacity of routing and switching devices are also increasing. Current switching technologies are generally related to electrical switching systems and optical switching systems. Electrical switching systems are based on packet switching and can achieve switching delays at the microsecond level, which is the mainstream solution for achieving high-speed switching with fine granularity. Optical switching systems are based on optical wavelength or optical link switching and can currently achieve switching from milliseconds to seconds. Although the bandwidth of optical switching systems is large, the speed is low.

[0004] Currently, there are several possible implementations of the system architectures for electrical and optical switching systems. In the fully interconnected electrical switching architecture shown in Figure 1, service nodes are directly connected to each other, enabling high-speed switching communication between multiple service nodes. In the star interconnected electrical switching architecture shown in Figure 2, multiple service nodes are indirectly connected through several centralized switching nodes, enabling high-speed switching communication between multiple service nodes. However, once the number of channels in the electrical switching systems shown in Figures 1 and 2 is determined, future bandwidth expansion can only be achieved by increasing the single-channel speed, and the improvement in single-channel speed is limited. Therefore, there is a problem that there is limited room for increasing bandwidth. In the star interconnected optical switching architecture shown in Figure 3, multiple service nodes are indirectly connected through several centralized switching nodes, enabling high-speed switching communication between multiple service nodes. In optical switching systems, bandwidth can be increased according to service requirements, but in the star interconnected switching architecture, the overall optical link loss is large due to the N*N optical switch loss and four backplane crossings.

[0005] Therefore, there is an urgent need for optical components that can increase bandwidth and reduce optical link loss in accordance with service requirements. [Overview of the project]

[0006] Embodiments of this application provide optical components, a fully interconnected optical switching system, and a communication system to reduce backplane losses of optical signals between the optical components and switching nodes.

[0007] According to a first aspect, the present application provides an optical component, which specifically includes a service processing module, an optical-to-electrical conversion module, a multiplexer, an optical switching switch, an optical receiving module, and an optical connector. When this optical component acts as a transmission end, a first electrical signal generated by the service processing module is converted by the optical-to-electrical conversion module to generate a first optical signal, which is then multiplexed using the multiplexer and output to the next-hop optical component through the optical switching switch and optical connector. When this optical component acts as a receiving end, the optical connector receives a second optical signal output by the optical connector of the previous-hop optical component, which is then multiplexed and deselected using the optical receiving module and output to the optical-to-electrical conversion module, which converts the second optical signal to generate a second electrical signal, which is then output to the service processing module.

[0008] In this embodiment, the optical switching switch is integrated into the optical component, thereby enabling the optical component to directly perform service switching with other optical components, thereby reducing backplane loss of optical signals between the optical component and the switching node.

[0009] In possible implementations, the optical switching switch is a 1*N optical switching switch, where N is a positive integer greater than or equal to 2. In this configuration, the fiber loss of the optical signal during the switching process can be further reduced.

[0010] In another possible implementation, there is a single optical / electrical conversion module. In this approach, the deployment cost of optical components is reduced.

[0011] In another possible implementation, the optical receiving module is an arrayed waveguide grating router (AWGR), or the optical receiving module includes a demultiplexer and an N*1 optical switching switch, where N is a positive integer greater than or equal to 2. In this way, the number of possible solutions in which optical components perform the optical receiving function can be increased.

[0012] In another possible implementation, the optical switching switch is an optical switching switch implemented based on micro-electromechanical system (MEMS) technology, or a liquid crystal on silicon-based wavelength selective switch (LCOS-based WSS). In this approach, the number of possible solutions for implementing the optical switching switch can be increased.

[0013] In another possible implementation, the response time of the optical switching switch is within the nanosecond range. In this way, the response speed of the optical components for optical switching can be improved.

[0014] According to a second aspect, the present application provides an optical switching complete interconnect system particularly comprising N optical components, any two of the N optical components being directly connected to each other, where N is a positive integer greater than or equal to 2. The N optical components include a first optical component and a second optical component. The first optical component includes a first service processing module, a first optical-to-electric conversion module, a first multiplexer, a first optical switching switch, a first optical receiving module, and a first optical connector. The second optical component includes a second service processing module, a second optical-to-electric conversion module, a second multiplexer, a second optical switching switch, a second optical receiving module, and a second optical connector. The number of output ports of the first optical switching switch and the number of output ports of the second optical switching switch are greater than or equal to the number of optical components in the optical switching complete interconnect system minus 1. An electrical signal generated by the first service processing module is converted by the first optical / electrical conversion module to generate a first optical signal, which is then multiplexed using the first multiplexer and transmitted to the second optical connector through the first optical switching switch and the first optical connector. An electrical signal generated by the second service processing module is converted by the second optical / electrical conversion module to generate a second optical signal, which is then multiplexed using the second multiplexer and transmitted to the first optical connector through the second optical switching switch and the second optical connector.

[0015] In this embodiment, the optical switching switch is integrated into the optical components of the optical switching fully interconnected system, thereby forming a system architecture in which the optical components of the optical switching fully interconnected system are directly connected to each other, and direct service switching can be performed between the optical components. In this way, backplane loss of the optical signal between the optical components and the switching node is reduced.

[0016] In possible implementations, the first optical switching switch is a 1*M optical switching switch, where M is a positive integer greater than or equal to N-1, and the second optical switching switch is a 1*M optical switching switch, where M is a positive integer greater than or equal to N-1.

[0017] In another possible implementation, the optical switching fully interconnected system further includes a third optical component. Any two of the first, second, and third optical components are directly connected to each other. The third optical component includes a third service processing module, a third optical-to-electrical conversion module, a third multiplexer, a third optical switching switch, a third optical receiving module, and a third optical connector. An electrical signal generated by the third service processing module in the third optical component is converted by the third optical-to-electrical conversion module to generate a third optical signal, which is multiplexed using the third multiplexer and transmitted to the second and / or first optical connectors through the third optical switching switch and the third optical connector.

[0018] In another possible implementation, the first, second, and third optical components have the same structure. In this approach, only one module needs to be used in a system, reducing the development cost of the optical components.

[0019] In another possible implementation, the first optical receiver module is an array waveguide grid router (AWGR), or the first optical receiver module includes a demultiplexer and an M*1 optical switching switch. The second optical receiver module is an array waveguide grid router (AWGR), or the second optical receiver module includes a demultiplexer and an M*1 optical switching switch, where M is a positive integer greater than or equal to N-1.

[0020] According to a third aspect, the present application provides a communication system, which includes an optical switching complete interconnect system as described in the second aspect, and the optical switching complete interconnect system includes optical components as described in the first aspect. [Brief explanation of the drawing]

[0021] [Figure 1] This is a diagram illustrating an exemplary architecture of a fully interconnected electrical switching architecture. [Figure 2] This is a diagram illustrating an exemplary architecture of an electrical switching star interconnection architecture. [Figure 3] This is a diagram illustrating an example architecture of an optical switching star interconnect architecture. [Figure 4] This is a diagram illustrating an embodiment of an optical component used in a fully interconnected optical switching system according to an embodiment of the present application. [Figure 5] This is a diagram of another embodiment of an optical component used in an optical switching complete interconnection system according to an embodiment of the present application. [Figure 6] This is a diagram of another embodiment of an optical component used in an optical switching complete interconnection system according to an embodiment of the present application. [Figure 7] This is a diagram of another embodiment of an optical component used in an optical switching complete interconnection system according to an embodiment of the present application. [Figure 8] This is a diagram of another embodiment of an optical component used in an optical switching complete interconnection system according to an embodiment of the present application. [Figure 9] This is a diagram of another embodiment of an optical component used in an optical switching complete interconnection system according to an embodiment of the present application. [Figure 10] This is a diagram of another embodiment of an optical component used in an optical switching complete interconnection system according to an embodiment of the present application. [Figure 11] FIG. is a diagram of an embodiment of an optical switching fully interconnected system according to an embodiment of the present application. [Figure 12] FIG. is a diagram of another embodiment of an optical switching fully interconnected system according to an embodiment of the present application. [Figure 13] FIG. is a diagram of another embodiment of an optical switching fully interconnected system according to an embodiment of the present application. [Figure 14] FIG. is a diagram of an embodiment of an optical switching system according to an embodiment of the present application.

MODE FOR CARRYING OUT THE INVENTION

[0022] In order to make the object, technical solution, and advantages of the present application more clear, hereinafter, embodiments of the present application will be described with reference to the accompanying drawings. It is clear that the described embodiments are only some, not all, of the embodiments of the present application. Those skilled in the art will be able to know that the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems with the emergence of new application scenarios.

[0023] In this specification, claims, and accompanying drawings, terms such as “first,” “second,” etc., are intended to distinguish between similar subjects but do not necessarily indicate a specific order or sequence. Data used in this manner are interchangeable in appropriate contexts, and it should be understood that embodiments described herein may be implemented in an order other than that shown or described herein. In addition, the terms “include,” “contain,” and any other variations thereof are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device comprising a set of steps or modules may not necessarily be limited to those steps or modules explicitly listed, and may include other steps or modules not explicitly listed or specific to such process, method, system, product, or device. The names or numbers of steps in this application do not imply that steps in a method procedure must be performed in a temporal / logical sequence indicated by their names or numbers. Where the same or similar technical effects can be achieved, the execution sequence of steps in a named or numbered procedure can be modified based on the technical objective to be achieved. The divisions to units in this application are logical divisions. In practical application, other forms of division may exist. For example, multiple units may be combined or integrated to form a different system, or some functions may be ignored or not performed. In addition, the mutual combinations, direct combinations, or communication connections shown or discussed may be implemented through several interfaces. Indirect combinations or communication connections between units may be in electronic form or other similar form, and are not limited to this application.In addition, units or subunits described as separate parts may or may not be physically separate, may or may not be physical units, may or may not be physical units, or may be distributed across multiple circuit units. Some or all of the units may be selected according to the actual requirements to achieve the objectives of the solution of this application.

[0024] With advancements in communication technology, the requirements for the capacity of routing and switching devices are also increasing. Current switching technologies typically relate to electrical switching systems and optical switching systems. Electrical switching systems are based on packet switching and can achieve switching delays at the microsecond level, making them the mainstream solution for achieving high-speed switching with fine granularity. Optical switching systems are based on optical wavelength or optical link switching and can currently achieve switching in milliseconds to seconds. Optical switching systems have high bandwidth but low speed.

[0025] Currently, there are several possible implementations of the system architectures for electrical and optical switching systems. In the fully interconnected electrical switching architecture shown in Figure 1, service nodes are directly connected to each other, enabling high-speed switching communication between multiple service nodes. In the star interconnected electrical switching architecture shown in Figure 2, multiple service nodes are indirectly connected through several centralized switching nodes, enabling high-speed switching communication between multiple service nodes. However, once the number of channels in the electrical switching systems shown in Figures 1 and 2 is determined, future bandwidth expansion can only be achieved by increasing the single-channel speed, and the improvement in single-channel speed is limited. Therefore, there is a problem that there is limited room for increasing bandwidth. In the star interconnected optical switching architecture shown in Figure 3, multiple service nodes are indirectly connected through several centralized switching nodes, enabling high-speed switching communication between multiple service nodes. In optical switching systems, bandwidth can be increased according to service requirements, but in switching star interconnect architectures, overall optical link loss is significant due to N*N optical switch losses and traversing the service node's backplane multiple times. Therefore, there is an urgent need for optical components that can increase bandwidth according to service requirements while reducing optical link loss.

[0026] To solve the aforementioned problems, embodiments of this application provide an optical component 400 shown in Figure 4. The optical component 400 includes a service processing module 401, an optical-to-electrical conversion module 402, a multiplexer 403, an optical switching switch 404, an optical receiving module 405, and an optical connector 406.

[0027] Based on the aforementioned optical component 400, when the optical component 400 acts as a transmission end, the service processing module 401 is configured to process service data in the communication and generate an electrical signal. The optical-to-electrical conversion module 402 is configured to modulate the service data, which is carried by an electrical signal, to a light source and generate a corresponding optical signal. It can be understood that the optical-to-electrical conversion module 402 receives the electrical signal, and the optical signal is generated by using a light source generator. The light source generator may be integrated into the optical component 400 or may exist separately from the optical component 400. In addition, the light source generator may generate a multi-wavelength light source, thereby performing optical-to-electrical conversion. module 402 can modulate separate service data to separate wavelengths to generate separate optical signals. Multiplexer 403 can multiplex the optical signals of separate wavelengths to generate a single optical signal (i.e., a first optical signal) and transmit that optical signal to optical switching switch 404. Optical switching switch 404 selects the corresponding port and outputs the optical signal to optical connector 406. Optical connector 406 is connected via optical fiber to the optical connector of the next-hop optical component (i.e., service node). Thus, optical connector 406 transmits the optical signal to the next-hop service node via optical fiber. In this embodiment, optical component 400 is directly connected to the next-hop optical component.

[0028] Based on the aforementioned optical component 400, when the optical component 400 acts as a receiving end, the optical connector 406 receives the second optical signal transmitted by the previous hop optical component (i.e., the service node), and then the optical connector 406 forwards the second optical signal to the optical receiving module 405. The optical receiving module 405 then outputs the second optical signal from its corresponding port, performs multiplexing and separation to generate a multi-wavelength optical signal, and transmits this multi-wavelength optical signal to the optical-to-electrical conversion module 402. The optical-to-electrical conversion module 402 then demodulates the multi-wavelength optical signal to generate a corresponding electrical signal, and transmits this electrical signal to the service processing module 401.

[0029] Based on the optical component 400 shown in Figure 4, the optical switching switch 404 may be a 1*N optical switching switch, and a diagram of a possible implementation of the optical switching switch 404 may be shown in Figure 5. It can also be understood that the optical switching switch 404 may be an N*N optical switching switch, and a diagram of a possible implementation of the optical switching switch 404 may be shown in Figure 6. In this embodiment, the value of N is related to the number of service nodes in the optical switching complete interconnect system in which the optical component 400 is used, and the value of N is greater than or equal to the number of service nodes in the optical switching complete interconnect system minus 1. For example, if there are a total of 6 service nodes in the optical switching complete interconnect system, including the optical component 400, then the value of N is 5 or greater. In addition, the optical switching switch may be an optical switching switch implemented based on micro electro mechanical system (MEMS) technology, or a liquid crystal on silicon-based wavelength selective switch (LCOS-based WSS).

[0030] In this embodiment, the response time of the optical switching switch may be designed to be within the nanosecond range in order to achieve a response speed for optical switching. Specific implementations of the optical switching switch are not limited herein.

[0031] Based on the optical component 400 shown in Figure 4, the optical receiver module 405 may be an arrayed waveguide grating router (AWGR), and a diagram of a possible implementation of the optical receiver module 405 may be shown in Figure 7. In addition, the optical receiver module 405 may also include a demultiplexer and an N*1 optical switching switch, and a diagram of a possible implementation of the optical receiver module 405 may be shown in Figure 8. In this embodiment, the value of N is related to the number of service nodes in the optical switching complete interconnect system in which the optical component 400 is used, and the value of N is greater than or equal to the number of service nodes in the optical switching complete interconnect system minus 1. In addition, the optical switching switch may be an optical switching switch implemented based on micro electro mechanical system (MEMS) technology, or a liquid crystal on silicon-based wavelength selective switch (LCOS-based WSS).

[0032] In this embodiment, the response time of the optical switching switch may be designed to be within the nanosecond range in order to achieve a response speed for optical switching. Specific implementations of the optical switching switch are not limited herein.

[0033] Based on the optical component 400 shown in Figure 4, the number of optical / electrical conversion modules 402 can be set to at least one. However, , so In this solution, there may be one optical / electrical conversion module 402. It may also be understood that there may be two optical / electrical conversion modules 402, and a diagram of possible implementations of the optical / electrical conversion modules 402 can be shown in Figure 9.

[0034] In this application, the optical component 400 no soThe solution may be shown in Figure 10. The optical component 400 includes a service processing module 401 and one optical / electrical conversion module 40 2. Ma Includes a lutiplexer 403, a 1*N optical switching switch 404, an AWGR 405, an optical connector 406, and a light source 407.

[0035] Based on the aforementioned solution for the optical component 400, an embodiment of the present application provides an optical switching complete interconnect system 100, as shown in Figure 11. The optical switching complete interconnect system 100 includes N optical components 400, each having the structure described in Figures 4 to 10. The N optical components 400 act as service nodes, and any two of the optical components 400 are directly connected to each other. In the exemplary solution, as shown in Figure 11, optical component 1 communicates with optical component 2, and the specific implementation process is as follows.

[0036] When optical component 1 acts as a transmission end, the service processing module in optical component 1 is configured to process service data in the communication and generate an electrical signal. The optical-to-electrical conversion module in optical component 1 is configured to modulate the service data, which is being carried by an electrical signal, to a light source and generate a corresponding optical signal. The optical-to-electrical conversion module in optical component 1 then outputs the optical signal to the multiplexer in optical component 1. The multiplexer in optical component 1 can multiplex optical signals of different wavelengths to generate a single optical signal and transmit that optical signal to the optical switching switch in optical component 1. The optical switching switch in optical component 1 selects the corresponding port and outputs the optical signal to the optical connector in optical component 1. The optical connector is connected to the optical connector of optical component 2 via an optical fiber. Therefore, the optical connector in optical component 1 transmits the optical signal to the optical connector of optical component 2 via the optical fiber. The optical connector of optical component 2 receives the optical signal transmitted by optical component 1 and then forwards the optical signal to the optical receiving module of optical component 2. Next, the optical receiving module of optical component 2 outputs an optical signal from its corresponding port, performs multiplexing and separation to generate a multi-wavelength optical signal, and then transmits this multi-wavelength optical signal to the optical / electrical conversion module of optical component 2. The optical / electrical conversion module of optical component 2 then demodulates the multi-wavelength optical signal to generate a corresponding electrical signal and transmits this electrical signal to the service processing module of optical component 2.

[0037] In this embodiment, the optical components in the optical switching complete interconnect system 100 may have the same structure or may have different structures. This is not particularly limited herein, as long as the functions of the optical switching complete interconnect system 100 can be performed.

[0038] Optionally, in this embodiment of the present application, the optical switching complete interconnection system 100 no so An exemplary solution of the solution may be shown in Figure 12. The structure of the optical component is shown in Figure 10.

[0039] If the optical switching switch in the optical component is an N*N optical switching switch, it can be understood that in this embodiment the optical switching system may further have the possible implementation shown in Figure 13. In this optical switching system, at least one optical component that acts as a service node is shown in Figure 6, and another optical component used as a service node may be the optical component shown in Figures 4 to 5 and Figures 7 to 10. The optical switching system may further have the possible implementation shown in Figure 14. In this optical switching system, at least one optical component that acts as a service node is shown in Figure 6, and another optical component that acts as a service node may have the structure of an existing optical component. This is not particularly limited herein. In this optical switching system, the optical component shown in Figure 6 can act as a switching node in the entire optical switching system and enable direct communication between the optical component shown in Figure 6 and service nodes directly connected to the optical component shown in Figure 6. Service nodes directly connected to the optical component shown in Figure 6 communicate indirectly with each other by using the optical component shown in Figure 6. In other words, as shown in Figure 14, when optical component 2 communicates with optical component 3, optical switching must be performed by using optical component 1. However, direct communication can be performed between optical component 1 and optical component 2, or between optical component 1 and optical component 3.

[0040] Embodiments of this application further provide a communication system including an optical switching fully interconnected system as shown in Figure 11.

[0041] The technical solutions in the embodiments of this application can be applied to various communication systems, such as Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), 5G communication systems, and future wireless communication systems.

[0042] The optical component 400 in this application may be user equipment. This application describes embodiments relating to user equipment. User equipment (UE) may also be a terminal device, access terminal, subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user apparatus. Access terminals may be cellular telephones, cordless telephones, Session Initiation Protocol (SIP) telephones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in a 5G network, or terminal devices in a future advanced PLMN.

[0043] Alternatively, the optical component 400 in this application may be a network device. This application describes embodiments relating to network devices. A network device may be a device configured to communicate with user equipment. For example, a network device may be a base transceiver station (BTS) in a GSM or CDMA system, a node B (NB) in a WCDMA system, or an evolved node B (eNB or eNodeB) in an LTE system. Alternatively, a network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network-side device in a 5G network, or a network device in a future advanced public land mobile network (PLMN).

[0044] For the purpose of convenient and concise description, it will be readily apparent to those skilled in the art that detailed operating processes of the aforementioned systems, apparatus, and units should be referred to the corresponding processes in the aforementioned method embodiments, and such details will not be described again here.

[0045] It should be understood that in some embodiments provided in this application, the disclosed systems, apparatus, and methods may be implemented in other forms. For example, the described apparatus embodiments are merely examples. For example, the divisions into units are merely logical functional divisions, and in actual implementation, other divisions may exist. For example, multiple units or components may be combined or integrated to form another system, or some functions may be ignored or not performed. In addition, the mutual coupling, direct coupling, or communication connection shown or discussed may be implemented through some interfaces. Indirect coupling or communication connection between apparatuses or units may be implemented in electronic, mechanical, or other forms.

[0046] Units described as separate parts may or may not be physically separate, and parts shown as units may or may not be physical units, may be located in one location, or may be distributed across multiple network units. Some or all of the units may be selected according to the actual requirements to achieve the objectives of the solution of the embodiment.

[0047] In addition, the functional units in the embodiments of this application may be integrated to form a single processing unit, each of these units may exist physically independently, or two or more units may be integrated to form a single unit. The integrated unit may be implemented in hardware form or in the form of a software functional unit.

[0048] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, the integrated unit may be stored on a computer-readable storage medium. Based on such understanding, the technical solutions of this application, or the portion that contributes to the prior art, or all or some of those technical solutions, may be implemented in the form of a software product. The computer software product is stored on a storage medium and includes several instructions for instructing a computer device (which may be a personal computer, a server, or a network device) to perform all or some of the steps of the method described in embodiments of this application. The aforementioned storage medium includes any medium capable of storing program code, such as a USB flash drive, a removable hard disk, read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

Claims

1. An optical component used in a fully interconnected optical switching system, The aforementioned optical component is It includes a service processing module, an optical / electrical conversion module, a multiplexer, an optical switching switch, an optical receiving module, and an optical connector, all configured to process service data in communications and generate electrical signals. When the optical component acts as a transmission end, the first electrical signal generated by the service processing module is converted by the optical / electrical conversion module to generate a first optical signal, the first optical signal is multiplexed using the multiplexer and output to the next hop optical component through the optical switching switch and the optical connector, and When the optical component acts as a receiving end, the optical connector receives a second optical signal output by the optical connector of the optical component at the previous hop, the second optical signal is multiplexed and separated using the optical receiving module and output to the optical / electrical conversion module, the second optical signal is converted by the optical / electrical conversion module to generate a second electrical signal, and the second electrical signal is output to the service processing module.

2. The optical component according to claim 1, wherein the optical switching switch is a 1*N optical switching switch, and N is a positive integer of 2 or more.

3. The optical component according to claim 1, wherein the optical receiving module is an array waveguide grid router (AWGR), or the optical receiving module includes an N*1 optical switching switch that receives the second optical signal, and a demultiplexer that receives the signal from the N*1 optical switching switch, and N is a positive integer of 2 or more.

4. The optical component according to claim 1, wherein the optical switching switch is an optical switching switch implemented based on microelectromechanical system (MEMS) technology, or a liquid crystal on silicon-based wavelength selective switch (LCOS-based WSS).

5. The optical component according to claim 1, wherein the response time of the optical switching switch is within the nanosecond level.

6. A fully interconnected optical switching system, It includes N optical components, any two of the N optical components are directly connected to each other, and N is a positive integer of 2 or more. The N optical components include a first optical component and a second optical component, The first optical component includes a first service processing module configured to process service data in communication and generate electrical signals, a first optical-to-electrical conversion module, a first multiplexer, a first optical switching switch, a first optical receiving module, and a first optical connector. The second optical component includes a second service processing module configured to process service data in communication and generate electrical signals, a second optical-to-electrical conversion module, a second multiplexer, a second optical switching switch, a second optical receiving module, and a second optical connector. The number of output ports of the first optical switching switch and the number of output ports of the second optical switching switch are greater than or equal to the number of optical components in the optical switching complete interconnection system minus 1. The electrical signal generated by the first service processing module is converted by the first optical / electrical conversion module to generate a first optical signal, the first optical signal is multiplexed using the first multiplexer and transmitted to the second optical connector through the first optical switching switch and the first optical connector, and A fully interconnected optical switching system comprising: an electrical signal generated by the second service processing module being converted by the second optical / electrical conversion module to generate a second optical signal; the second optical signal being multiplexed using the second multiplexer and transmitted to the first optical connector through the second optical switching switch and the second optical connector.

7. The first optical switching switch is a 1*M optical switching switch, where M is a positive integer greater than or equal to N-1, and The system according to claim 6, wherein the second optical switching switch is a 1*M optical switching switch, and M is a positive integer of N-1 or greater.

8. The optical switching fully interconnected system further includes a third optical component, and any two of the first optical component, the second optical component, and the third optical component are directly connected to each other. The third optical component includes a third service processing module configured to process service data in communication and generate electrical signals, a third optical-to-electrical conversion module, a third multiplexer, a third optical switching switch, a third optical receiving module, and a third optical connector, and The system according to claim 6, wherein an electrical signal generated by the third service processing module in the third optical component is converted by the third optical / electrical conversion module to generate a third optical signal, the third optical signal is multiplexed using the third multiplexer and transmitted to the second optical connector and / or the first optical connector through the third optical switching switch and the third optical connector.

9. The system according to claim 8, wherein the first optical component, the second optical component, and the third optical component have the same structure.

10. The first optical receiving module is an array waveguide grid router (AWGR), or the first optical receiving module includes a demultiplexer and an M*1 optical switching switch. The system according to claim 6, wherein the second optical receiving module is an array waveguide grid router (AWGR), or the second optical receiving module includes a demultiplexer and an M*1 optical switching switch, where M is a positive integer of N-1 or greater.

11. A communication system comprising an optical switching fully interconnect system according to at least one of claims 6 to 10, wherein the optical switching fully interconnect system comprises an optical component according to any one of claims 1 to 5.

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