Optical cross-connect switch device, detection method, and cluster system

Abstract

The present application provides an optical cross-connect switch device, a detection method, and a cluster system, applied to the technical field of optical communications. The optical cross-connect switch device comprises a plurality of first ports, a plurality of second ports, an optical path switching structure, and detection control structures. The plurality of first ports and the plurality of second ports form optical path switching transmission channels by means of the optical path switching structure. Input ends of the detection control structures are connected between the plurality of first ports and the optical path switching structure. The plurality of first ports and the plurality of second ports perform exchange and transmission of composite optical signals by means of the optical path switching structure. The detection control structures each receive a received optical signal from at least one of the plurality of first ports, and control the switching of paths corresponding to the optical path switching transmission channels between the plurality of first ports and the plurality of second ports on the basis of the received optical signal. The present embodiment implements the power-on self-test and automatic link establishment of a target switching device on the basis of device identification information and port identification information of the target switching device.

Description

Optical cross-connect switch device, detection method and cluster system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on March 21, 2024, with application number 202410333497.2 and application name “An optical cross-connect switch device, detection method and cluster system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of optical communication technology, and in particular to an optical cross-connect switch device, a detection method, and a cluster system. Background Art

[0003] In the communications field, data exchange between different network nodes is enabled by switching devices (such as routers and servers). With the rapid development of internet services, particularly the rise of cloud computing, big data, and artificial intelligence, the amount of data exchanged between network nodes has exploded. To meet this growing demand for communications, cluster systems can be built using multiple switching devices. Cluster systems can utilize either electrical or optical switching technologies. Currently, electrical switching technologies struggle to meet the requirements of modern data centers in terms of bandwidth, overhead, and energy consumption. In contrast, optical switching technology, with its advantages of transparent transmission rates, low power consumption, and reconfigurability, is gaining adoption in data centers. A commonly used device in optical switching technology is the micro-electro-mechanical systems optical cross-connect (MEMS OXC). However, because MEMS OXCs are unaware of services, they only switch optical paths without analyzing the data carried in them. To implement optical switching in a cluster system, MEMS OXCs must be aware of services and obtain the device and port identification information of other target switching devices in the cluster system to enable power-on self-test and automatic link establishment. Services can only be exchanged after optical paths are established between switching devices. However, traditional optical cross-connect switches cannot achieve this function and are therefore not suitable for use in cluster systems. Summary of the Invention

[0004] The embodiments of the present application provide an optical cross-connect switch device, a detection method, and a cluster system, so as to implement power-on self-test and automatic link establishment of a target switching device by acquiring device identification information and port identification information of the target switching device.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, an optical cross-connect switch device is provided, which includes a plurality of first ports, a plurality of second ports, a switching optical path structure, and a detection control structure. The plurality of first ports form an optical path switching transmission path with the plurality of second ports through the switching optical path structure. The input end of the detection control structure is connected between the plurality of first ports and the switching optical path structure. The plurality of first ports are used to: exchange and transmit composite optical signals between the switching optical path structure and the plurality of second ports, wherein the composite optical signal includes a received optical signal, which is an optical signal received from a target switching device based on the first port and transmitted to the corresponding second port. The received optical signal carries device identification information and port identification information of the target switching device. The detection control structure is used to: input a received optical signal from at least one first port among the plurality of first ports. The switching of corresponding paths of the optical path switching transmission path between the plurality of first ports and the plurality of second ports is controlled according to the received optical signal.

[0007] In an embodiment of the present application, by including the device identification information and port identification information of a target switching device in a received optical signal and providing a detection control structure for parsing the device identification information and port identification information of the target switching device carried in the optical signal, the optical cross-connect switch device can sense the service. Furthermore, the optical cross-connect switch device can control the switching of corresponding paths of the optical path switching transmission pathways between a plurality of first ports and a plurality of second ports based on the device identification information and port identification information of the target switching device, thereby achieving power-on self-test and automatic link establishment of the target switching device.

[0008] In one possible embodiment, the detection control structure includes a first detection structure and a control circuit, wherein the input end of the first detection structure is connected between the plurality of first ports and the switching optical path structure, and the output end of the first detection structure is connected to the input end of the control circuit. The output control end of the control circuit is coupled to the controlled end of the switching optical path structure. The first detection structure is configured to: receive an optical signal from at least one of the plurality of first ports and output a first electrical signal. The first electrical signal is configured to indicate the device identification information and port identification information of the target switching device. The control circuit is configured to: control the exchange of corresponding paths of the optical path switching transmission paths between the plurality of first ports and the plurality of second ports based on the first electrical signal. In an embodiment of the present application, the control circuit controls the exchange of corresponding paths of the optical path switching transmission paths between the plurality of first ports and the plurality of second ports based on the first electrical signal carrying the device identification information and port identification information of the target switching device, so as to realize power-on self-test and automatic link establishment of the target switching device by obtaining the device identification information and port identification information of the target switching device.

[0009] In one possible embodiment, a second detection structure is connected between the switching optical path structure and the plurality of second ports. The input end of the second detection structure is connected between the plurality of second ports and the switching optical path structure, and the output end of the second detection structure is connected to the input end of the control circuit. The output control end of the control circuit is coupled to a controlled end connected to the switching optical path structure via the control circuit. The second detection structure is configured to receive an optical signal from the switching optical path structure and detect the optical signal to obtain a second electrical signal. The second electrical signal indicates the current output optical power of the optical signal. The control circuit is further configured to adjust parameters of the optical path switching transmission path based on the current output optical power to increase the output optical power of the optical signal. In this embodiment of the present application, the second detection structure detects the optical signal input from the switching optical path structure to obtain a second electrical signal indicating the current output optical power of the optical signal. The control circuit uses the current output optical power indicated by the second electrical signal as closed-loop feedback for the optical cross-connect switch device, adjusting parameters of the optical path switching transmission path to increase the output optical power of the optical signal. This achieves predetermined performance targets by detecting and controlling the channel operating status of the optical cross-connect switch device, ensuring stable transmission of the optical signal and optimizing performance.

[0010] In one possible implementation, the first electrical signal is further configured to indicate the input optical power of the optical signal, and the control circuit is further configured to adjust parameters of the optical path switching transmission path based on the input optical power and the current output optical power to increase the output optical power of the optical signal. In this embodiment of the present application, the control circuit uses the input optical power and the current output optical power as closed-loop feedback for the optical cross-connect switch device, adjusting the parameters of the optical path switching transmission path to increase the output optical power of the optical signal. This achieves predetermined performance targets by detecting and controlling the channel operating status of the optical cross-connect switch device, ensuring stable transmission and optimized performance of the optical signal.

[0011] In one possible implementation, the received optical signal also carries the transmit optical power of the target switching device. The control circuit is further configured to determine the optical signal receive transmission insertion loss of at least one first port based on the transmit optical power and the input optical power. In this embodiment of the present application, the control circuit determines the optical signal receive transmission insertion loss of at least one first port based on the transmit optical power and the input optical power to locate and detect optical fiber faults outside the optical cross-connect switch device.

[0012] In one possible embodiment, the composite optical signal also includes a transmitted optical signal. The transmitted optical signal is an optical signal transmitted from the second port to the target switching device. The received optical signal also carries the received optical power of the target switching device. The control circuit is further configured to determine the optical signal transmission insertion loss of the second port based on the received optical power and the corresponding output optical power of the second port. In this embodiment of the present application, the control circuit determines the optical signal transmission insertion loss of at least one first port based on the transmitted optical power and the input optical power to locate and detect optical fiber faults outside the optical cross-connect switch device.

[0013] In one possible embodiment, the first detection structure includes a photoelectric detection device, a current control device, a first detection device, and a second detection device. The input of the photoelectric detection device is connected between the multiple first ports and the switching optical circuit structure. The output of the photoelectric detection device is connected to the input of the current control device. The first output port of the current control device is connected to the input of the first detection device, and the second output port of the current control device is connected to the input of the second detection device. The output of the first detection device is connected to the first input of the control circuit, and the output of the second detection device is connected to the second input of the control circuit. The photoelectric detection device is configured to input a composite optical signal from at least one of the multiple first ports and output a composite electrical signal to the current control device. The current control device is configured to output the composite electrical signal to the first detection device and the second detection device, respectively. The first detection device is configured to output device identification information and port identification information of the target switching device based on the composite electrical signal. The second detection device is configured to output the input optical power of the optical signal based on the composite electrical signal. In this embodiment of the present application, the first and second detection devices share a single current control device to reduce the hardware cost of the optical cross-connect switch device.

[0014] In one possible implementation, the current control device is any one of the following: a current mirror and a filter circuit. In the embodiment of the present application, the first detection structure can be constructed in a variety of ways to achieve flexibility in the construction of the first detection structure while improving the adaptability, fault tolerance, and robustness of the first detection structure.

[0015] In one possible embodiment, the switching optical path structure includes a first spectroscopic structure, a second spectroscopic structure and a micro-electromechanical system micromirror array. The first spectroscopic structure is arranged between a plurality of first ports and the micro-electromechanical system micromirror array. The second spectroscopic structure is arranged between a plurality of second ports and the micro-electromechanical system micromirror array. The first spectroscopic structure is used to: output a first spectroscopic signal to the detection control structure based on the received light signal, and output a second spectroscopic signal to the micro-electromechanical system micromirror array. The micro-electromechanical system micromirror array is used to: output a second spectroscopic signal to the second spectroscopic structure. The second spectroscopic structure is used to: output a first sub-split signal and a second sub-split signal based on the second spectroscopic signal. In the embodiment of the present application, due to the adoption of a miniaturized design, the structure of the entire switching optical path structure is compact, stable and reliable, reducing the risk of failure caused by mechanical movement.

[0016] In one possible implementation, the first and second light-splitting structures are any of the following: a fiber optic splitter and a spatial splitter. In the embodiments of the present application, the first and second light-splitting structures can be constructed in a variety of ways to achieve flexibility in the construction of the first and second light-splitting structures while improving their adaptability, fault tolerance, and robustness.

[0017] In a second aspect, a detection method is provided. The method is performed by an optical cross-connect switch device, the optical cross-connect switch device comprising a plurality of first ports, a plurality of second ports, a switching optical path structure, and a detection control structure. The plurality of first ports form an optical path switching transmission path with the plurality of second ports through the switching optical path structure. The input end of the detection control structure is connected between the plurality of first ports and the switching optical path structure. The method comprises: exchanging and transmitting a composite optical signal between the switching optical path structure and the plurality of second ports, the composite optical signal comprising a received optical signal, the received optical signal being an optical signal received from a target switching device based on a first port and transmitted to a corresponding second port. The received optical signal carries device identification information and port identification information of the target switching device. The received optical signal is input from at least one of the plurality of first ports. The switching of corresponding paths of the optical path switching transmission path between the plurality of first ports and the plurality of second ports is controlled based on the received optical signal.

[0018] In one possible embodiment, a received optical signal is input from at least one first port among a plurality of first ports. Controlling the switching of corresponding paths of optical path switching transmission paths between the plurality of first ports and a plurality of second ports based on the received optical signal includes: inputting the received optical signal from at least one first port among the plurality of first ports and outputting a first electrical signal. The first electrical signal is used to indicate device identification information and port identification information of a target switching device. Controlling the switching of corresponding paths of the optical path switching transmission paths between the plurality of first ports and the plurality of second ports based on the first electrical signal.

[0019] In one possible embodiment, the method further includes: inputting an optical signal from the optical path switching structure and detecting the optical signal to obtain a second electrical signal. The second electrical signal is used to indicate a current output optical power of the optical signal. Based on the current output optical power, parameters of the optical path switching transmission path are adjusted to increase the output optical power of the optical signal.

[0020] In a possible implementation, the first electrical signal is further used to indicate the input optical power of the optical signal, further comprising: adjusting parameters of the optical path switching transmission path according to the input optical power and the current output optical power to increase the output optical power of the optical signal.

[0021] In a possible implementation, the received optical signal also carries the transmit optical power of the target switching device, and further includes: determining the optical signal receive transmission insertion loss of at least one first port according to the transmit optical power and the input optical power.

[0022] In one possible implementation, the composite optical signal also includes a transmitted optical signal. The transmitted optical signal is an optical signal transmitted to a target switching device via the second port. The received optical signal also carries the received optical power of the target switching device. The method further includes determining an optical signal transmission insertion loss at the second port based on the received optical power and the corresponding output optical power of the second port.

[0023] In a third aspect, a cluster system is provided, comprising an optical cross-connect switch device and a first target switching device. The optical cross-connect switch device comprises a plurality of first ports, a plurality of second ports, a switching optical path structure, and a detection control structure. The plurality of first ports form an optical path switching transmission path with the plurality of second ports via the switching optical path structure. The input end of the detection control structure is connected between the plurality of first ports and the switching optical path structure. The optical cross-connect switch device is coupled to the first target switching device via the plurality of first ports. The optical cross-connect switch device is configured to exchange and transmit composite optical signals between the plurality of first ports and the plurality of second ports via the switching optical path structure. The composite optical signals include received optical signals, which are optical signals received from the first target switching device at the first port and transmitted to the corresponding second ports. The received optical signals carry device identification information and port identification information of the first target switching device. The detection control structure receives the received optical signal from at least one of the plurality of first ports and controls the switching of corresponding paths of the optical path switching transmission path between the plurality of first ports and the plurality of second ports based on the received optical signal.

[0024] In one possible embodiment, the cluster system further includes a second target switching device, and the optical cross-connect switch device is coupled to the second target switching device via a plurality of second ports. The optical cross-connect switch device is further configured to send an optical signal to the second target switching device based on the second port. The optical signal carries device identification information and port identification information of the second target switching device. The second target switching device is configured to exchange and transmit the composite optical signal between the plurality of first ports via the switching optical path structure.

[0025] In a fourth aspect, a computer-readable storage medium is provided, the computer-readable storage medium comprising instructions. When the instructions are executed on a processor, the processor is caused to execute any detection method according to the second aspect.

[0026] Regarding the technical principles and beneficial effects of the second, third and fourth aspects mentioned above, please refer to the relevant description of the first aspect mentioned above, and no further details will be given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a structural schematic diagram 1 of an optical cross-connect switch device provided in an embodiment of the present application;

[0028] FIG2 is a structural diagram of a cluster system according to an embodiment of the present application;

[0029] FIG3 is a second structural diagram of an optical cross-connect switch device provided in an embodiment of the present application;

[0030] FIG4 is a third structural diagram of an optical cross-connect switch device provided in an embodiment of the present application;

[0031] FIG5 is a fourth structural diagram of an optical cross-connect switch device provided in an embodiment of the present application;

[0032] FIG6 is a fifth structural diagram of an optical cross-connect switch device provided in an embodiment of the present application;

[0033] FIG7 is a sixth structural diagram of an optical cross-connect switch device provided in an embodiment of the present application;

[0034] FIG8 is a structural diagram 1 of a first detection structure provided in an embodiment of the present application;

[0035] FIG9 is a second structural diagram of a first detection structure provided in an embodiment of the present application;

[0036] FIG10 is a third structural diagram of a first detection structure provided in an embodiment of the present application;

[0037] FIG11 is a fourth structural diagram of a first detection structure provided in an embodiment of the present application;

[0038] FIG12 is a seventh structural diagram of an optical cross-connect switch device provided in an embodiment of the present application;

[0039] FIG13 is a second structural diagram of a cluster system provided in an embodiment of the present application;

[0040] FIG14 is a flow chart of a detection method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] It should be noted that the terms "first", "second", etc. involved in the embodiments of the present application are only used to distinguish features of the same type and cannot be understood as indicating relative importance, quantity, order, etc.

[0042] The terms "exemplary" or "for example" in the embodiments of this application are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0043] The terms "coupling" and "connection" involved in the embodiments of this application should be understood in a broad sense. For example, they may refer to a physical direct connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0044] First, some basic concepts involved in the embodiments of this application are explained:

[0045] Top-modulation technology: In the field of optical communications, top-modulation is a specific signal processing technique. This technique essentially superimposes a small, low-frequency sine or cosine modulated signal on each wavelength at the transmitter. When this low-frequency signal is superimposed on the optical wavelength, it modulates the top of the wavelength, hence the name top-modulation signal.

[0046] In the field of communications, data interaction between different network nodes can be achieved based on switching equipment (such as routers and servers). With the rapid development of Internet services, especially the rise of cloud computing, big data and artificial intelligence, the amount of data interacting between network nodes has exploded. In order to meet the growing demand for communication, a cluster system can be built based on multiple switching devices. The switching of the cluster system can be based on electrical switching technology or optical switching technology. At present, electrical switching technology mainly improves data processing capabilities by expanding the scale of the data center network (DCN) and increasing the number of servers. However, this linear expansion method makes the energy consumption of the data center approach the limit, and it is difficult to meet the requirements of modern data centers in terms of bandwidth, overhead, energy consumption, etc. In contrast, optical switching technology, with its advantages of transparent rate, low power consumption, and reconfigurability, is gradually being used in data centers to effectively reduce network energy consumption and meet the needs of high throughput and low latency. The commonly used equipment in optical switching technology is optical cross-connect switch equipment based on three-dimensional micro-electro-mechanical systems mirror (3D-MEMS Mirror) technology. Among them:

[0047] 3D-MEMS Mirror technology is an advanced MEMS-based optical device technology. It utilizes micromechanical structures to create high-precision, dynamically controllable mirrors capable of precisely adjusting optical paths in three dimensions. This technology combines the advantages of micro-nanofabrication and optical design to achieve high-speed, precise manipulation of optical signals. Specifically, 3D-MEMS Mirror technology uses micro-mirrors as core components, utilizing micro-electromechanical systems (MEMS) to precisely control and position the mirrors. These mirrors can perform rapid and stable movements at the micro-nanoscale, enabling precise reflection and routing of optical signals. The movement of these mirrors can be controlled by electrical signals, enabling rapid response to external commands and flexible adjustment of optical paths. 3D-MEMS Mirror technology has broad application prospects in optical communications, optical signal processing, optical imaging, and other fields. In optical communications, it can be used to build flexible and reconfigurable optical networks, enabling high-speed, low-latency data transmission. In optical signal processing, it can be used for modulation, demodulation, and routing of optical signals, improving signal processing efficiency and flexibility. In the field of optical imaging, it can be used in devices such as optical microscopes and optical scanning systems to precisely locate and image target objects. Compared to traditional optical devices, 3D-MEMS mirror technology offers a number of significant advantages. First, it features high speed and high precision, enabling rapid response to external commands and precise adjustment of optical paths. Second, it boasts low power consumption and high reliability, enabling long-term stable operation without frequent maintenance. Furthermore, due to its miniaturized design, 3D-MEMS mirror technology boasts advantages such as small size, light weight, and ease of integration, facilitating its application in a variety of optical systems.

[0048] MEMS OXC is an advanced technology used in optical communications to enable flexible and efficient switching of optical signals. It combines the miniaturization, high precision, and dynamic controllability of microelectromechanical systems (MEMS) with the high bandwidth, low latency, and transparency of optical cross-connect technology, providing powerful support for modern optical communication networks. Specifically, MEMS OXC technology utilizes micromirrors or similar mechanical structures to precisely control their position and angle, enabling flexible adjustment of optical signal paths. These micromirrors can be driven quickly and stably by electrical signals, enabling rapid routing and switching of optical signals. Compared to traditional optical switches, MEMS OXC technology offers higher integration, lower energy consumption, and longer lifespan. In optical communication networks, MEMS OXC technology can be used to build flexible and reconfigurable optical cross-connect nodes. These nodes can dynamically adjust optical signal routing based on changes in network traffic, enabling flexible scheduling and efficient transmission of optical signals. Furthermore, due to its transparency, optical cross-connect technology can support the switching of optical signals at varying rates and formats, thus meeting a variety of complex optical communication application scenarios. MEMS OXC technology also offers the advantages of high reliability and low maintenance costs. Its miniaturized design makes the entire system compact, stable, and reliable, reducing the risk of failures caused by mechanical motion. Furthermore, optimized design and manufacturing processes can further improve system reliability and stability, while reducing maintenance costs.

[0049] However, because optical cross-connect switches are unaware of services, they only switch optical paths without analyzing the data carried in those paths. To implement optical switching in a cluster system, optical switching devices must be aware of services and obtain the device and port identification information of other target switching devices in the cluster system. This allows them to perform power-on self-tests and automatically establish links. Only after establishing optical paths between switching devices can services be exchanged. However, traditional optical cross-connect switches cannot achieve this function, making them unsuitable for use in cluster systems.

[0050] However, because optical cross-connect switches are not aware of services and only switch optical paths, meaning they only forward optical signals from one port to another without parsing or processing the data carried in the optical signals, they can be affected by factors such as drift within the optical cross-connect switches themselves, fiber faults in the data center (such as dust on the fiber end faces (which may account for 60% of failures), fiber breaks (which may account for 10% of failures), and fiber failures themselves), causing changes in the channel operating status of the optical cross-connect switches. This can be difficult to detect and control in a timely manner, leading to unstable optical signal transmission and inefficient switching within the optical cross-connect switches.

[0051] In order to timely detect and control the channel operating status of the optical cross-connect switch device and ensure the stable transmission and efficient switching of optical signals, in some possible implementations, this embodiment provides an optical cross-connect switch device. As shown in Figure 1, the optical cross-connect switch device 1000A includes multiple first ports 100A, multiple second ports 200A, a switching optical path structure 300A, a first detection and control structure 400A, a second detection and control structure 500A, a first splitting structure 600A, and a second splitting structure 700A. The multiple first ports 100A form an optical path switching transmission path with the multiple second ports 200A through the switching optical path structure 300A. The input end of the first detection and control structure 400A is connected between the multiple first ports 100A and the switching optical path structure 300A. The input end of the second detection and control structure 500A is connected between the switching optical path structure 300A and the multiple second ports 200A. The first detection control structure 400A includes a fiber array 410A, a cylindrical mirror 420A, a scanning mirror 430A, an optical time division multiplexing (OTDM) structure 440A, and a detection device 450A. As shown in Figure 1, the fiber array 410A can be a 24×16 array, specifically including 24 rows of network tap fibers, each row including 16 photodetectors (PDs). The second detection control structure 500A has similar functional structures to the first detection control structure 400A and will not be further described here. The optical cross-connect switch device 1000A receives optical signals from a target switching device based on multiple first ports 100A. After being split by the first optical splitting structure 600A, it outputs two optical signals. One optical signal is output to the first detection control structure 400A for optical power detection, and the other optical signal is output to the second optical splitting structure 700A through the switching optical path structure 300A. After further splitting, it outputs two optical signals. One optical signal is output to the second detection control structure 500A for optical power detection, and the other optical signal is output through the second port 200A. In this embodiment, a cylindrical mirror 420A and a one-dimensional scanning mirror 430A are added after the optical fiber array 410A. Through the deflection of the one-dimensional scanning mirror 430A, the optical time-division multiplexing structure 440A and the detection device 450A can be shared, thereby reducing costs. The detection light split from the output optical fiber is also shared by the optical time-division multiplexing structure 440A and the detection device 450A in the same manner.The optical cross-connect switch device 1000A detects the optical power of the output optical signal as closed-loop feedback for the optical cross-connect switch device 1000A, compares the optical power of the output optical signal with the optical power of the received input optical signal, or with the expected optical power, or with a preset optical power reference value, and then adjusts the channel operating state based on the comparison result. By detecting and controlling the channel operating state of the optical cross-connect switch device 1000A, predetermined performance targets are achieved, ensuring stable transmission of optical signals and optimized performance. However, this embodiment fails to obtain port identification information of the ports coupled to the optical cross-connect switch device 1000A and device identification information of the target switching device, making it difficult to locate the ports of the optical cross-connect switch device 1000A and the target switching device. This results in the optical cross-connect switch device 1000A being unable to perform power-on self-test, automatic link establishment, and blind insertion of the target switching device in a cluster system (which may include the optical cross-connect switch device 1000A and multiple target switching devices), which brings certain difficulties to the maintenance of the optical communication system. At the same time, there is no fault location and detection capability for optical fiber faults outside the optical cross-connect switch device 1000A. On the other hand, this embodiment requires the use of two external optical fiber arrays, resulting in higher hardware equipment costs.

[0052] In order to implement power-on self-test and automatic link establishment of a target switching device in a cluster system by obtaining device identification information and port identification information of other target switching devices in the cluster system, in some possible implementations, this embodiment provides a cluster system. As shown in FIG2 , the cluster system 10000B includes an optical cross-connect switch device 1000B and a first target switching device A1. The first target switching device A1 is coupled to the optical cross-connect switch device 1000B via an optical module. As shown in FIG3 , the optical cross-connect switch device 1000B includes a plurality of first ports 100B, a plurality of second ports 200B, a switching optical path structure 300B, and a detection control structure 400B. The plurality of first ports 100B form an optical path switching transmission path with the plurality of second ports 200B through the switching optical path structure 300B. The input end of the detection control structure 400B is connected between the plurality of first ports 100B and the switching optical path structure 300B. The first ports 100B and the second ports 200B are used to achieve coupling between the switching optical path structure 300B and the first target switching device A1. Multiple first ports 100B exchange and transmit composite optical signals with multiple second ports 200B via the optical switching structure 300B. The composite optical signals may include received optical signals and transmitted optical signals from the optical cross-connect switch device 1000B. The received optical signals are optical signals received from the first target switching device A1 by the first port 100B and transmitted to the corresponding second port 200B. The transmitted optical signals are optical signals transmitted to the target switching device by the second port. The received and transmitted optical signals may carry service signals and top modulation signals modulated on the service signals using top modulation technology. The top modulation signals may carry device identification information and port identification information of the first target switching device A1. The detection control structure 400B inputs the received optical signal from at least one first port 100B among the multiple first ports 100B. Because the top-modulated signal in the received optical signal carries the port identification information of the first target switching device A1, and the first target switching device A1 is coupled to a port (the first port 100B or the second port 200B) of the optical cross-connect switch device 1000A via an optical module, the switching of corresponding paths of the optical path switching transmission paths between the plurality of first ports 100B and the plurality of second ports 200B can be controlled based on the port identification information in the received optical signal. In this embodiment, the optical cross-connect switch device 1000A receives the received optical signal carrying the device identification information and port identification information of the first target switching device A1 based on the first port 100B.The detection control structure 400B controls the exchange of corresponding paths of the optical path switching transmission channels between multiple first ports and multiple second ports according to the device identification information and port identification information of the first target switching device A1, so as to realize power-on self-test, automatic link establishment and communication of the first target switching device A1 coupled to the first port 100B and the second port 200B by obtaining the device identification information and port identification information of the target switching device.

[0053] In some examples, as shown in FIG4 , the switching optical path structure 300B includes a first optical splitting structure 310B, a second optical splitting structure 320B, and a micro-electromechanical system (MEMS) micromirror array 330B. The first optical splitting structure 310B is disposed between the plurality of first ports 100B and the MEMS micromirror array 330B. The second optical splitting structure 320B is disposed between the plurality of second ports 200B and the MEMS micromirror array 330B. The first optical splitting structure 310B performs optical splitting processing on the received optical signal, dividing the received optical signal into a first optical splitting signal and a second optical splitting signal. The first optical splitting signal is output to the detection control structure 400B for detecting the top modulation signal and / or optical power, and the second optical splitting signal is output to the MEMS micromirror array 330B for transmitting the service signal. The MEMS micromirror array 330B outputs the second optical splitting signal to the second optical splitting structure 320B. The second optical splitting structure 320B performs optical splitting processing on the second optical splitting signal, and divides the second optical splitting signal into a first sub-optical splitting signal and a second sub-optical splitting signal, wherein the first sub-optical splitting signal is used to detect the top modulation signal and / or optical power, and the second sub-optical splitting signal is used to transmit the service signal. In the embodiment of the present application, due to the adoption of a miniaturized design, the structure of the entire switching optical path structure is compact, stable and reliable, and the risk of failure caused by mechanical movement is reduced. Among them, the first optical splitting structure 310B and the second optical splitting structure 320B can be constructed in a variety of ways, such as the first optical splitting structure 310B and the second optical splitting structure 320B can be spatial splitters or optical fiber splitters, so as to achieve the flexibility of the construction of the first optical splitting structure 310B and the second optical splitting structure 320B, while improving the adaptability, fault tolerance and robustness of the first optical splitting structure 310B and the second optical splitting structure 320B.

[0054] For example, as shown in FIG5 , the switching optical path structure 300B further includes an input collimator array 340B and an output collimator array 350B, and the first splitting structure 310B and the second splitting structure 320B can be spatial splitters. The switching optical path structure 300B receives a composite optical signal from the first target switching device A1 based on the first port 100B. The input collimator array 340B converts the composite optical signal into spatial light and enters the first splitting structure 310B (spatial splitter). The first splitting structure 310B divides the composite optical signal converted into a spatial optical path into two paths, one of which has a higher power and enters the micro-electromechanical system micro-mirror array 330B. The other path, which has a lower power, enters the detection control structure 400B for detection. The micro-electromechanical system micro-mirror array 330B is used to exchange the input spatial light and direct the light beams to different ports of the output collimator array 350B. The output collimator array 350B couples the spatial light to the output optical fiber and transmits it out.

[0055] For example, as shown in FIG6 , the switching optical path structure 300B further includes an input collimator array 340B and an output collimator array 350B, and the first splitting structure 310B and the second splitting structure 320B can be optical fiber splitters. The switching optical path structure 300B receives a composite optical signal from the first target switching device A1 based on the first port 100B. The first splitting structure 310B splits the composite optical signal into two paths, one of which has a higher power and enters the input collimator array 340B and the subsequent micro-electromechanical system micro-mirror array 330B for optical switching. The other path, which has a lower power, enters the detection control structure 400B for detection. The micro-electromechanical system micro-mirror array 330B is used to exchange the input spatial light and direct the light beams to different ports of the output collimator array 350B. The output collimator array 350B couples the spatial light to the output optical fiber and transmits it out.

[0056] In some examples, as shown in FIG7 , the detection control structure 400B includes a first detection structure 410B and a control circuit 420B. The input end of the first detection structure 410B is connected between the plurality of first ports 100B and the optical switching structure 300B, and the output end of the first detection structure 410B is connected to the input end of the control circuit 420B. The output control end of the control circuit 420B is coupled to the controlled end of the optical switching structure 300B. The first detection structure 410B receives an optical signal from at least one of the plurality of first ports 100B and outputs a first electrical signal. The first electrical signal may include device identification information and port identification information of the first target switching device A1. Based on the first electrical signal, the control circuit 420B controls the switching of corresponding paths of the optical switching transmission path between the plurality of first ports 100B and the plurality of second ports 200B.

[0057] For example, as shown in FIG8 , the first detection structure 410B includes a photodetector 411B, a current control device 412B, a first detection device 413B, and a second detection device 414B. The input end of the photodetector 411B is connected between the plurality of first ports 100B and the optical switching circuit structure 300B. The output end of the photodetector 411B is connected to the input end of the current control device 412B. The first output port of the current control device 412B is connected to the input end of the first detection device 413B. The second output port of the current control device 412B is connected to the input end of the second detection device 414B. The output end of the first detection device 413B is connected to the first input end of the control circuit 420B, and the output end of the second detection device 414B is connected to the second input end of the control circuit 420B. The photodetector 411B receives a composite optical signal from at least one of the plurality of first ports 100B and outputs a composite electrical signal to the current control device 412B. Current control device 412B outputs a composite electrical signal to first detection device 413B and second detection device 414B, respectively. First detection device 413B outputs device identification information and port identification information of first target switching device A1 based on the composite electrical signal. Second detection device 414B outputs the input optical power of the optical signal based on the composite electrical signal. In this embodiment of the present application, first detection device 413B and second detection device 414B share a single current control device 412B, reducing the hardware cost of optical cross-connect switch device 1000B.

[0058] For example, as shown in Figure 9 , current control device 412B can be a current mirror 412B1. After photodetection device 411B converts the composite optical signal into current, it uses the current mirror to create two copies of the current. One copy is output to first detection device 413B for detecting the device identification information and port identification information of the first target switching device A1. The other copy is output to second detection device 414B for detecting the input optical power of the optical signal.

[0059] For example, as shown in FIG10 , the current control device 412B can be a filter circuit 412B2. In some scenarios, the signal that the first detection device 413B needs to detect is an AC signal, and the signal that the second detection device 414B needs to detect is a DC signal. To meet the requirements of this scenario, after the photoelectric detection device 411B converts the composite optical signal into a current, it can pass through a filter circuit to separate the DC and AC components of the current. The DC component enters the second detection device 414B for optical power detection, and the AC component enters the first detection device 413B for device identification information and port identification information detection of the first target switching device A1. The current control device 412B shown in FIG8 can be constructed in various ways, such as the current mirror 412B1 shown in FIG9 or the filter circuit 412B2 shown in FIG10, to achieve flexibility in the construction of the first detection structure 410B, while improving the adaptability, fault tolerance, and robustness of the first detection structure.

[0060] Specifically, multiple first target switching devices A1 can be coupled to the ports of the optical cross-connect switch device 1000A through an optical fiber array. If the optical fiber array is an M×N array, there are M×N optical paths, and the number of photoelectric detection devices 411B in the first detection structure 410B is M×N.

[0061] Furthermore, as shown in Figure 11, the first detection structure 410B also includes a time-division multiplexing structure 415B. The input end of the time-division multiplexing structure 415B is coupled to the output end of the first optical splitting structure 310B, and the output end of the time-division multiplexing structure 415B is coupled to the input end of the photodetector device 411B. When the first optical splitting structure 310B is a spatial optical splitter as shown in Figure 5, and the optical fiber array is an M×N array, the time-division multiplexing structure 415B is a spatial time-division multiplexer. The spatial time-division multiplexer outputs M×N spatial light beams in a time-division manner to N different spatial photodetectors 411B for detection. Each photodetector device 411B outputs M spatial light beams in a time-division manner to the current control device 412B.

[0062] Furthermore, when first light-splitting structure 310B is a fiber optic splitter as shown in FIG6 , and the fiber array is an M×N array, time-division multiplexing structure 415B is a fiber optic time-division multiplexer. The fiber optic time-division multiplexer outputs light input from the M×N optical fibers to N different photodetectors 411B for detection. Each photodetector 411B outputs M spatial light beams in a time-division manner to a current control device 412B.

[0063] In some examples, as shown in FIG12 , a second detection structure 430B is connected between the switching optical circuit structure 300B and the plurality of second ports 200B. The input end of the second detection structure 430B is connected between the plurality of second ports 200B and the switching optical circuit structure 300B, and the output end of the second detection structure 430B is connected to the input end of the control circuit 420B. The output control end of the control circuit 420B is coupled to the controlled end connected to the switching optical circuit structure 300B via the control circuit 420B. The second detection structure 430B receives an optical signal from the switching optical circuit structure 300B and detects the optical signal to generate a second electrical signal. The second electrical signal includes the current output optical power of the optical signal. The control circuit 420B compares the current output optical power with a preset threshold. When the current output optical power is less than the preset threshold, closed-loop feedback control is initiated for the current channel. By adjusting the control signals of the micromirrors in the microelectromechanical system micromirror array 330B, the angle of the micromirrors is changed so that the output optical power reaches a maximum value or exceeds a preset threshold.

[0064] Exemplarily, the first electrical signal also indicates the input optical power of the optical signal. Control circuit 420B calculates the optical insertion loss of each transmission path by subtracting the input and output optical powers obtained in real time. When the optical insertion loss exceeds a preset threshold, closed-loop feedback control is initiated for that transmission path. By adjusting the control signals of the micromirrors in the micro-electromechanical system micromirror array 330B, the angles of the micromirrors are altered to minimize the optical path insertion loss of the transmission path or to below a preset threshold. In the embodiment shown in FIG12 , by detecting and controlling the channel operating status of the optical cross-connect switch device and utilizing closed-loop feedback, predetermined performance targets are achieved, ensuring stable transmission of optical signals and optimized performance.

[0065] Exemplarily, the second detection structure 430B has a structure and function similar to the first detection structure 410B, and can be designed with reference to the functional structure of the first detection structure 410B.

[0066] In some examples, as shown in FIG13 , cluster system 10000B further includes a second target switching device A2. The optical cross-connect switch device 1000B is coupled to the second target switching device A2 via a plurality of second ports 200B. The optical cross-connect switch device 1000B is further configured to transmit an optical signal to the second target switching device A2 via the second ports 200B. The optical signal carries device identification information and port identification information of the second target switching device A2. The second target switching device A2 is configured to exchange and transmit composite optical signals between the plurality of first ports 100B and the switching optical path structure 300B.

[0067] In some examples, the cluster system 10000B may be a data center cluster or an artificial intelligence (AI) cluster. The first target switching device A1 and the second target switching device A2 may be servers or switches. The optical module coupled to the optical cross-connect switch device 1000B is part of the first target switching device A1 and the second target switching device A2. The first target switching device A1 and the second target switching device A2 connected to the optical cross-connect switch device 1000B send a top adjustment signal to the optical cross-connect switch device 1000B through the optical module. The top adjustment signal carries device identification information (such as IP) of the first target switching device A1 and the second target switching device A2 and port identification information of the optical module.

[0068] To implement power-on self-test and blind insertion of the cluster system 10000B. In some examples, when the cluster system 10000B establishes a connection for the first time or when the system is restarted, the optical cross-connect switch device 1000B performs optical power detection on the target switching device A (the first target switching device A1 or the second target switching device A2) to determine whether the target switching device A is operating normally. When the target switching device A is operating normally, the optical cross-connect switch device 1000B scans the light sensor (LS) information of the input port (the first port 100B or the second port 200B) to confirm the connection relationship between the optical cross-connect switch device 1000B port and the optical module (connected or not connected). After confirming that the optical cross-connect switch device 1000B port is connected to the optical module, the optical cross-connect switch device 1000B binds the port-to-optical module relationship and begins to establish a link according to the network configuration information. In this embodiment, the cluster system 10000B allows users to make accurate and reliable optical fiber connections even when they cannot directly see or touch the connection point. At the same time, it facilitates the installation, maintenance and upgrade of the cluster system 10000B.

[0069] In some examples, the optical cross-connect switch device 1000B can inspect the photoelectric detection signal of the port at preset time intervals to determine whether there is a new channel. If a new channel is found, the inspection of the photoelectric detection signal of the port is interrupted, the LS information of the port is read, the port connection relationship is obtained, and the insertion loss of the channel is optimized through closed-loop control.

[0070] To locate and detect optical fiber faults outside the optical cross-connect switch device 1000B, in some examples, the received optical signal also carries the transmit optical power of the first target switching device A1. The control circuit 420B further determines the optical signal receive transmission insertion loss of at least one first port 100B based on the transmit optical power and the input optical power.

[0071] In some examples, the composite optical signal also includes a transmitted optical signal. The transmitted optical signal is an optical signal transmitted from the second port 200B to the target switching device A. The received optical signal also carries the received optical power of the second target switching device A2. The control circuit 420B further determines the optical signal transmission insertion loss of the second port 200B based on the received optical power and the corresponding output optical power of the second port 200B.

[0072] For example, target switching device A, coupled to optical cross-connect switch device 1000B, sends a top-modulation signal to optical cross-connect switch device 1000B via an optical module. The top-modulation signal carries the target switching device A's transmit and receive optical powers, as detected internally by the optical module. Optical cross-connect switch device 1000B receives the optical module's optical power information (transmit and receive optical powers), and obtains the input optical fiber link insertion loss (optical signal receive transmission insertion loss) by subtracting the optical module's input optical power from the optical module's transmit optical power. It also obtains the output optical fiber link insertion loss (optical signal transmit transmission insertion loss) by subtracting the optical module's receive optical power from the optical cross-connect switch device 1000B's current output optical power. If the optical fiber link insertion loss exceeds a preset threshold, optical fiber fault information is output.

[0073] Based on the devices or systems corresponding to the embodiments shown in Figures 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13, a detection method including the following steps S100 to S300 as shown in Figure 14 can be implemented. The specific steps include:

[0074] S100: Receive a composite optical signal.

[0075] In some examples, in the devices or systems shown in Figures 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13, multiple first ports exchange and transmit composite optical signals with multiple second ports via a switching optical path structure. The composite optical signals include received optical signals, which are optical signals received from a target switching device by the first ports and transmitted to corresponding second ports. The received optical signals carry device identification information and port identification information of the target switching device.

[0076] S200: Output a control signal according to the composite optical signal.

[0077] In some examples, in the devices or systems shown in Figures 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13, the detection control structure inputs a received optical signal from at least one first port among a plurality of first ports, and detects the device identification information, port identification information, and optical power of the received optical signal of the target switching device carried in the received optical signal, and outputs a control signal based on the device identification information, port identification information, and optical power information of the received optical signal of the target switching device.

[0078] S300: Control the switching of corresponding paths of the optical path switching transmission path according to the control signal.

[0079] In some examples, in devices or systems as shown in Figures 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13, multiple first ports form optical path switching transmission paths with multiple second ports through an exchange optical path structure.

[0080] In some examples, as shown in FIG7 , at least one of the plurality of first ports receives an optical signal as input and outputs a first electrical signal. The first electrical signal indicates device identification information and port identification information of a target switching device. Based on the first electrical signal, switching of corresponding paths of optical path switching transmission pathways between the plurality of first ports and the plurality of second ports is controlled.

[0081] In some examples, as shown in FIG12 , an optical signal is input from the optical path switching structure and detected to generate a second electrical signal. The second electrical signal indicates the current output optical power of the optical signal. Based on the current output optical power, parameters of the optical path switching transmission path are adjusted to increase the output optical power of the optical signal.

[0082] In some examples, as shown in FIG12 , the first electrical signal is also used to indicate the input optical power of the optical signal, and the parameters of the optical path switching transmission path are adjusted according to the input optical power and the current output optical power to increase the output optical power of the optical signal.

[0083] In some examples, as shown in Figure 13, the received optical signal also carries the transmit optical power of the target switching device. The optical signal receive transmission insertion loss of at least one first port is determined based on the transmit optical power and the input optical power.

[0084] In some examples, as shown in FIG13 , the composite optical signal also includes a transmit optical signal. The transmit optical signal is an optical signal transmitted to the target switching device via the second port. The received optical signal also carries the received optical power of the target switching device. The optical signal transmission insertion loss of the second port is determined based on the received optical power and the corresponding output optical power of the second port.

[0085] Embodiments of the present application provide an optical cross-connect switch device, a detection method, and a cluster system. These devices carry the device identification information and port identification information of a target switching device in a received optical signal, and incorporate a detection control structure for parsing the device identification information and port identification information of the target switching device carried in the optical signal. This allows the optical cross-connect switch device to detect services. Furthermore, the optical cross-connect switch device can control the switching of corresponding paths in optical path switching transmission pathways between a plurality of first ports and a plurality of second ports based on the device identification information and port identification information of the target switching device, thereby enabling power-on self-test and automatic link establishment for the target switching device.

[0086] The present application also provides a computer-readable storage medium comprising instructions. When the instructions are executed on the optical line terminal device and / or the optical network terminal device described in the above embodiments, the optical line terminal device and / or the optical network terminal device executes the detection method described in the above embodiments (e.g., the detection method related to the embodiments shown in Figures 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13).

[0087] The processor involved in the embodiments of the present application may be a chip. For example, it may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0088] The memory involved in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus ram (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0089] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0090] Those skilled in the art will appreciate that the modules and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0091] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0092] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0093] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located on a single device or distributed across multiple devices. Some or all of the modules may be selected to achieve the purpose of this embodiment based on actual needs.

[0094] In addition, the functional modules in the various embodiments of the present application may be integrated into one device, or each module may exist physically separately, or two or more modules may be integrated into one device.

[0095] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0096] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An optical cross-connect switch device, characterized in that: The optical cross-connect switch device includes a plurality of first ports, a plurality of second ports, a switching optical path structure, and a detection control structure; the plurality of first ports form an optical path switching transmission path with the plurality of second ports through the switching optical path structure; The input end of the detection control structure is connected between the plurality of first ports and the switching optical path structure; wherein: The plurality of first ports are used to exchange and transmit composite optical signals with the plurality of second ports through the switching optical path structure, wherein the composite optical signal includes a received optical signal, which is an optical signal received from a target switching device based on the first port and transmitted to a corresponding second port; the received optical signal carries device identification information and port identification information of the target switching device; The detection control structure is used to: input the received optical signal from at least one first port among the plurality of first ports; The switching of corresponding paths of the optical path switching transmission channels between the plurality of first ports and the plurality of second ports is controlled according to the received optical signal.

2. The optical cross-connect switch device according to claim 1, wherein: The detection control structure includes a first detection structure and a control circuit, wherein an input end of the first detection structure is connected between the plurality of first ports and the switching optical path structure, an output end of the first detection structure is connected to an input end of the control circuit; an output control end of the control circuit is coupled to a controlled end of the switching optical path structure; The first detection structure is used to: input the received optical signal from the at least one first port among the multiple first ports and output a first electrical signal; the first electrical signal is used to indicate the device identification information and port identification information of the target switching device; The control circuit is used to control the exchange of corresponding paths of the optical path exchange transmission channels between the plurality of first ports and the plurality of second ports according to the first electrical signal.

3. The optical cross-connect switch device according to claim 2, wherein: A second detection structure is connected between the switching optical path structure and the plurality of second ports, an input end of the second detection structure is connected between the plurality of second ports and the switching optical path structure, and an output end of the second detection structure is connected to an input end of the control circuit; an output control end of the control circuit is coupled to a controlled end of the switching optical path structure through the control circuit; The second detection structure is used to: input the optical signal from the switching optical path structure, and detect the optical signal to obtain a second electrical signal; the second electrical signal is used to indicate the current output optical power of the optical signal; The control circuit is further configured to adjust the parameters of the optical path switching transmission path according to the current output optical power to increase the output optical power of the optical signal.

4. The optical cross-connect switch device according to claim 3, wherein: The first electrical signal is further used to indicate the input optical power of the optical signal, and the control circuit is further used to adjust the parameters of the optical path switching transmission path according to the input optical power and the current output optical power to increase the output optical power of the optical signal.

5. The optical cross-connect switch device according to claim 4, characterized in that: The received optical signal also carries the transmitted optical power of the target switching device; The control circuit is further configured to determine an optical signal receiving transmission insertion loss of the at least one first port according to the transmitted optical power and the input optical power.

6. The optical cross-connect switch device according to any one of claims 3 to 5, characterized in that: The composite optical signal also includes a transmitted optical signal; the transmitted optical signal is an optical signal transmitted to the target switching device based on the second port; the received optical signal also carries the received optical power of the target switching device; The control circuit is further configured to determine an optical signal transmission insertion loss of the second port according to the received optical power and the corresponding output optical power of the second port.

7. The optical cross-connect switch device according to claim 2, wherein: The first detection structure includes a photoelectric detection device, a current control device, a first detection device, and a second detection device, wherein an input end of the photoelectric detection device is connected between the plurality of first ports and the switching optical path structure, an output end of the photoelectric detection device is connected to an input end of the current control device, a first output port of the current control device is connected to an input end of the first detection device, a second output port of the current control device is connected to an input end of the second detection device, an output end of the first detection device is connected to a first input end of the control circuit, and an output end of the second detection device is connected to a second input end of the control circuit; The photoelectric detection device is used to: input the composite optical signal from the at least one first port among the plurality of first ports, and output a composite electrical signal to the current control device; The current control device is used to: output a composite electrical signal to the first detection device and the second detection device respectively; The first detection device is used to: output device identification information and port identification information of the target switching device according to the composite electrical signal; The second detection device is used to output the input optical power of the optical signal according to the composite electrical signal.

8. The optical cross-connect switch device according to claim 7, characterized in that: The current control device is any one of the following: a current mirror and a filter circuit.

9. The optical cross-connect switch device according to any one of claims 1 to 8, characterized in that: The switching optical path structure includes a first light splitting structure, a second light splitting structure and a micro-electromechanical system micro-mirror array; the first light splitting structure is arranged between the plurality of first ports and the micro-electromechanical system micro-mirror array; the second light splitting structure is arranged between the plurality of second ports and the micro-electromechanical system micro-mirror array; The first light splitting structure is used to: output a first light splitting signal to the detection control structure and output a second light splitting signal to the micro-electromechanical system micro-mirror array according to the received light signal; The micro-electromechanical system micro-mirror array is used to: output the second light splitting signal to the second light splitting structure; The second optical splitting structure is configured to output a first sub-optical split signal and a second sub-optical split signal according to the second optical split signal.

10. The optical cross-connect switch device according to claim 9, characterized in that: The first light splitting structure and the second light splitting structure are any one of the following: a fiber optic splitter and a spatial splitter.

11. A detection method, characterized in that: The method is performed by an optical cross-connect switch device, which includes a plurality of first ports, a plurality of second ports, a switching optical path structure, and a detection control structure; the plurality of first ports form an optical path switching transmission path with the plurality of second ports through the switching optical path structure; The input end of the detection control structure is connected between the plurality of first ports and the switching optical path structure, and the method includes: exchanging and transmitting a composite optical signal between the switching optical path structure and the plurality of second ports, wherein the composite optical signal includes a received optical signal, the received optical signal being an optical signal received from a target switching device based on the first port and transmitted to a corresponding second port; the received optical signal carrying device identification information and port identification information of the target switching device; The received optical signal is input from at least one first port among the plurality of first ports; and the switching of corresponding paths of the optical path switching transmission channels between the plurality of first ports and the plurality of second ports is controlled according to the received optical signal.

12. The detection method according to claim 11, characterized in that inputting the received optical signal from at least one first port among the plurality of first ports; Controlling the switching of corresponding paths of the optical path switching transmission paths between the plurality of first ports and the plurality of second ports according to the received optical signal comprises: Input the received optical signal from at least one first port among the plurality of first ports and output a first electrical signal; the first electrical signal is used to indicate the device identification information and port identification information of the target switching device; According to the first electrical signal, the switching of corresponding paths of the optical path switching transmission channels between the plurality of first ports and the plurality of second ports is controlled.

13. The detection method according to claim 12, characterized in that: Also includes: Inputting the optical signal from the switching optical path structure and detecting the optical signal to obtain a second electrical signal; The second electrical signal is used to indicate the current output optical power of the optical signal; According to the current output optical power, the parameters of the optical path switching transmission path are adjusted to increase the output optical power of the optical signal.

14. The detection method according to claim 13, characterized in that The first electrical signal is further used to indicate the input optical power of the optical signal, further comprising: According to the input optical power and the current output optical power, the parameters of the optical path switching transmission path are adjusted to increase the output optical power of the optical signal.

15. The detection method according to claim 14, characterized in that: The received optical signal also carries the transmitted optical power of the target switching device; and further comprising: An optical signal receiving transmission insertion loss of the at least one first port is determined according to the transmitted optical power and the input optical power.

16. The detection method according to any one of claims 13 to 15, characterized in that: The composite optical signal further includes a transmitted optical signal; the transmitted optical signal is an optical signal transmitted to the target switching device based on the second port; the received optical signal also carries the received optical power of the target switching device; and further includes: The optical signal transmission insertion loss of the second port is determined according to the received optical power and the corresponding output optical power of the second port.

17. A cluster system, characterized in that: The cluster system includes an optical cross-connect switch device and a first target switching device; the optical cross-connect switch device includes a plurality of first ports, a plurality of second ports, a switching optical path structure, and a detection control structure; the plurality of first ports form an optical path switching transmission path with the plurality of second ports through the switching optical path structure; The input end of the detection control structure is connected between the plurality of first ports and the switching optical path structure; the optical cross-connect switch device is coupled to the first target switching device through the plurality of first ports; wherein: The optical cross-connect switch device is configured to: exchange and transmit composite optical signals between the plurality of first ports and the plurality of second ports via the switching optical path structure, wherein the composite optical signal includes a received optical signal, which is an optical signal received from a first target switching device by the first port and transmitted to a corresponding second port; the received optical signal carries device identification information and port identification information of the first target switching device; and the detection control structure inputs the received optical signal from at least one first port among the plurality of first ports; The switching of corresponding paths of the optical path switching transmission channels between the plurality of first ports and the plurality of second ports is controlled according to the received optical signal.

18. The cluster system according to claim 17, characterized in that: The cluster system further includes a second target switching device, and the optical cross-connect switch device is coupled to the second target switching device via the plurality of second ends; The optical cross-connect switch device is further configured to: send an optical signal to the second target switching device based on the second port; the optical signal carries device identification information and port identification information of the second target switching device; The second target switching device is used to exchange and transmit composite optical signals with the plurality of first ports through the switching optical path structure.

19. A computer-readable storage medium, characterized in that The computer-readable storage medium includes instructions; when the instructions are executed on a processor, the processor is caused to execute the detection method according to any one of claims 11 to 16.

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