Optical switching device and control method, apparatus, device and medium therefor

Abstract

An optical switching device and its control method, apparatus, equipment, and medium are disclosed, belonging to the field of optical communication technology. The optical switching device includes: an input fiber array, an output fiber array, an input micromirror array, an output micromirror array, and a path control unit. Each input mirror in the input micromirror array is located on the optical axis of an input fiber, and each output mirror in the output micromirror array is located on the optical axis of an output fiber. The path control unit is used to output the light beam received by the target input fiber from the target output fiber through a first path or a second path. The first path passes through a first input mirror and a first output mirror, and the second path passes through a different input mirror than the first input mirror, and / or, the second path passes through a different output mirror than the first output mirror. This optical switching device can reduce service interruption time.

Description

Technical Field

[0001] This application relates to the field of optical communication technology, and in particular to an optical switching device and its control method, apparatus, equipment and medium. Background Technology

[0002] With the rapid development of information technology, optical communication technology plays an increasingly important role in modern communication networks. During the transmission of optical signals, optical switching devices are needed to control the transmission path of the optical signals.

[0003] In related technologies, optical switching devices include: an input fiber array, an output fiber array, an input micromirror array, and an output micromirror array. The input fiber array includes multiple input fibers arranged in an array, and the output fiber array includes multiple output fibers arranged in an array. The input micromirror array includes multiple input mirrors arranged in an array, with each input mirror corresponding to one of the input fibers. The output micromirror array includes multiple output mirrors arranged in an array, with each output mirror corresponding to one of the output fibers. After determining the target input fiber and the target output fiber, the beam received by the target input fiber is output from the target output fiber by controlling the deflection direction of the input mirror corresponding to the target input fiber and the output mirror corresponding to the target output fiber.

[0004] Because both the input and output micromirror arrays are moving parts, their failure rate is relatively high. If the input mirror corresponding to the target input fiber or the output mirror corresponding to the target output fiber fails, the optical path between the target input and output fibers will be interrupted, resulting in service interruption. In this case, it is necessary to reconnect the external fibers to which the target input and / or output fibers are connected and reconfigure the optical path to restore service, resulting in a prolonged service interruption. Summary of the Invention

[0005] This application provides an optical switching device and its control method, apparatus, equipment and medium, which can shorten the service interruption time caused by mirror failure in a micromirror array.

[0006] In a first aspect, this application provides an optical switching device. The optical switching device includes: an input fiber array, an output fiber array, an input micromirror array, an output micromirror array, and a path control unit. The input fiber array includes a plurality of input fibers arranged in an array, and the output fiber array includes a plurality of output fibers arranged in an array. The input micromirror array includes a plurality of input mirrors arranged in an array, each input mirror located on the optical axis of one of the plurality of input fibers. The output micromirror array includes a plurality of output mirrors arranged in an array, each output mirror located on the optical axis of one of the plurality of output fibers.

[0007] The path control unit is configured to, when the first path is functioning correctly, output the light beam received by the target input fiber from the target output fiber through the target input fiber via the first path, the first path passing through a first input reflector and a first output reflector, wherein the first input reflector is one of the multiple input reflectors and is located on the optical axis of the target input fiber, and the first output reflector is one of the multiple output reflectors and is located on the optical axis of the target output fiber. The path control unit is further configured to, when the first path is faulty, output the light beam received by the target input fiber from the target output fiber via a second path, the second path passing through one of the multiple input reflectors and one of the multiple output reflectors, wherein the input reflector passed by the second path is different from the first input reflector, and / or, the output reflector passed by the second path is different from the first output reflector.

[0008] In this application, when the first path fails, a second path can be selected by controlling the input micromirror array, the output micromirror array, and the path control unit, so that the light beam received by the target input fiber is output from the target output fiber. The optical path between the target input fiber and the target output fiber can be restored simply by configuring the input micromirror array, the output micromirror array, and the path control unit within the optical switching device, without the need to reconnect the fibers, thereby shortening service interruption time.

[0009] Alternatively, the path control unit can adopt any of the following three structures.

[0010] The first type of path control unit includes a first dimmer and a second dimmer. The first dimmer is located between the input fiber array and the input micromirror array, and is used to transmit the light beam received by the target input fiber to the first input mirror, or to refract the light beam emitted from the target input fiber to the second input mirror among the plurality of input mirrors. The second dimmer is located between the output fiber array and the output micromirror array, and is used to transmit the light beam emitted from the first output mirror to the target output fiber, or to refract the light beam emitted from the second output mirror among the plurality of input mirrors to the target output fiber.

[0011] When the first input reflector fails, an optical path can be established between the target input fiber and the target output fiber using the second input reflector and the first output reflector. When the first output reflector fails, an optical path can be established between the target input fiber and the target output fiber using the first input reflector and the second output reflector. When both the first input reflector and the first output reflector fail, an optical path can be established between the target input fiber and the target output fiber using the second input reflector and the second output reflector. Therefore, the path control unit of this first structure can propagate the light beam output from the target input fiber to the target output fiber via a second path in all three scenarios: failure of the first input reflector and / or failure of the first output reflector.

[0012] The second type includes the aforementioned first dimmer but excludes the aforementioned second dimmer. When the first input reflector fails, an optical path can be established between the target input fiber and the target output fiber through the second input reflector and the first output reflector, thereby propagating the light beam output from the target input fiber to the target output fiber through the second path.

[0013] The third type includes the aforementioned second dimmer but excludes the aforementioned first dimmer. When the first output reflector fails, an optical path can be established between the target input fiber and the target output fiber through the first input reflector and the second output reflector, thereby propagating the light beam output from the target input fiber to the target output fiber through the second path.

[0014] A fault in either the first input reflector or the first output reflector indicates a fault in the first path.

[0015] Optionally, the first input reflector and the second input reflector are adjacent to each other. The close distance between the first and second input reflectors means that the first dimmer only needs to deflect the propagation direction of the beam output from the target input fiber by a small angle to redirect the beam from the first input reflector to the second input reflector, thus reducing the requirements on the beam propagation direction deflection capability of the first dimmer.

[0016] Optionally, the first output reflector and the second output reflector are adjacent to each other. Since the first and second output reflectors are close together, the second dimmer only needs to deflect the propagation direction of the beam emitted from the second output reflector by a small angle to redirect the beam from the corresponding output fiber to the target output fiber. This places lower requirements on the beam propagation direction deflection capability of the second dimmer.

[0017] Optionally, the first dimmer includes a plurality of first dimming regions arranged in an array, the center of each first dimming region being located on the optical axis of an input fiber, so as to control the propagation direction of the beam emitted from the corresponding input fiber, thereby propagating the beam output from the input fiber to the desired input reflector.

[0018] Optionally, the second dimmer includes a plurality of second dimming zones arranged in an array, the center of each second dimming zone being located on the optical axis of an output fiber, so as to control the propagation direction of the beam emitted from the corresponding output reflector, thereby outputting the beam from the desired output fiber.

[0019] Optionally, the first dimmer is a liquid crystal spatial light modulator, and the second dimmer is a liquid crystal spatial light modulator. Using a liquid crystal spatial light modulator as both the first and second dimmers allows for adjustment of the deflection direction of the liquid crystal molecules by controlling the voltage applied to the liquid crystal, thereby adjusting the emission direction of the received light beam. This method is easy to implement and has low cost.

[0020] Optionally, the optical switching device further includes an input lens array. The input lens array includes multiple collimating lenses, each corresponding to one of the input optical fibers. Each collimating lens is used to collimate the beam output from its corresponding input optical fiber. Collimating the beam output from the input optical fibers using collimating lenses reduces the divergence angle of the beam, allowing subsequent input and output micromirror arrays to process the beam more effectively and reducing beam loss during transmission.

[0021] Optionally, the optical switching device further includes an output lens array. The output lens array includes multiple converging lenses, each corresponding to one of the multiple output optical fibers. Each converging lens is used to converge the received beam and output it to its corresponding output optical fiber. By arranging the output lens array to facilitate beam coupling to the output optical fiber for transmission, coupling efficiency can be improved and beam loss during transmission can be reduced.

[0022] Secondly, a control method for an optical switching device is also provided. This control method is used to control any of the optical switching devices provided in the first aspect. The control method includes: determining a target input fiber and a target output fiber; controlling the input micromirror array, the output micromirror array, and the path control unit to output a light beam received by the target input fiber from the target output fiber via the first path if the first path is not faulty, or, if the first path is faulty, outputting a light beam received by the target input fiber from the target output fiber via the second path.

[0023] Optionally, when the path control unit includes a first dimmer and a second dimmer, controlling the input micromirror array, the output micromirror array, and the path control unit to output the light beam received by the target input optical fiber from the target output optical fiber through the second path includes any one of the following three cases.

[0024] Scenario 1: If it is determined that the first input reflector is faulty and the first output reflector is not faulty, the first dimmer is controlled to refract the light beam output from the target input fiber to the second input reflector, the second input reflector is controlled to reflect the received light beam to the first output reflector, the first output reflector is controlled to reflect the received light beam to the second dimmer, and the second dimmer is controlled to transmit the light beam emitted from the first output reflector to the target output fiber. Here, controlling the first output reflector to reflect the received light beam to the second dimmer means controlling the orientation of the first output reflector to reflect the received light beam to the second dimming area of ​​the second dimmer corresponding to the target output fiber.

[0025] Scenario 2: If the first output reflector is determined to be faulty, but the first input reflector is not faulty, the first dimmer is controlled to transmit the light beam output from the target input fiber to the first input reflector; the first input reflector is controlled to reflect the received light beam to the second output reflector; the second output reflector is controlled to reflect the received light beam to the second dimmer; and the second dimmer is controlled to refract the light beam emitted from the second output reflector to the target output fiber. Here, controlling the second output reflector to reflect the received light beam to the second dimmer refers to controlling the orientation of the second output reflector to reflect the received light beam to the second dimming area of ​​the second dimmer corresponding to the target output fiber.

[0026] Scenario 3: If both the first input reflector and the first output reflector are determined to be faulty, the first dimmer is controlled to refract the light beam output from the target input fiber to the second input reflector; the second input reflector is controlled to reflect the received light beam to the second output reflector; the second output reflector is controlled to reflect the received light beam to the second dimmer; and the second dimmer is controlled to refract the light beam emitted from the second output reflector to the target output fiber. Here, controlling the second output reflector to reflect the received light beam to the second dimmer refers to controlling the orientation of the second output reflector to reflect the received light beam to the second dimming area of ​​the second dimmer corresponding to the target output fiber.

[0027] It is evident that this control method can quickly adjust the propagation path of the light beam by controlling the input micromirror array, the output micromirror array, the first dimmer, and the second dimmer in the event of one or both of the first input reflector and the first output reflector failure, thereby restoring the optical path between the target input fiber and the target output fiber with a short service interruption time.

[0028] Thirdly, a control device for an optical switching device is also provided. This control device has the function of implementing the method described in the first aspect. The function can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned function.

[0029] Fourthly, a computer device is also provided, including a processor and a memory, wherein the memory stores program code; the processor is used to read and execute the program code stored in the memory to implement the control method provided in the first aspect.

[0030] Optionally, the processor may be one or more, and the processor may be a multi-core processor, and the memory may be one or more.

[0031] Optionally, the memory may be integrated with the processor, or the memory may be separated from the processor.

[0032] In the specific implementation process, the memory can be a non-transitory memory, such as read-only memory (ROM), which can be integrated with the processor on the same chip or set on different chips. This application does not limit the type of memory or the way the memory and processor are set.

[0033] Fifthly, a computer-readable storage medium is also provided, wherein a software program is stored therein, which, when read and executed by one or more processors, can implement the control method provided in the first aspect.

[0034] In a sixth aspect, a computer program (product) is provided, the computer program (product) comprising: computer program code, wherein when the computer program code is run by a computer device, the computer device executes the control method provided in the first aspect above.

[0035] In a seventh aspect, a chip is provided, the chip including a processor and a communication interface. The processor is configured to execute instructions to cause the chip to perform the control method provided in the first aspect. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of an optical switching device provided in an embodiment of this application;

[0037] Figures 2 to 4 yes Figure 1 Schematic diagram of the optical path of the optical switching device in different working states;

[0038] Figure 5 This is a flowchart of a control method for an optical switching device provided in an embodiment of this application;

[0039] Figure 6 This is a schematic diagram of the structure of a control device for an optical switching device provided in an embodiment of this application;

[0040] Figure 7 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0042] The optical switching device in this application embodiment can be an optical switch or optical switch, etc., which is a device that can selectively output a light beam input from an input optical fiber from any one of the output optical fibers.

[0043] Figure 1 This is a schematic diagram of the structure of an optical switching device provided in an embodiment of this application. Figure 1 As shown, the optical switching device includes an input fiber array 10, an output fiber array 20, an input micromirror array 30, an output micromirror array 40, and a path control unit 50.

[0044] The input fiber array 10 includes multiple input fibers 11 arranged in an array, and the output fiber array 20 includes multiple output fibers 21 arranged in an array. The input micromirror array 30 includes multiple input mirrors 31 arranged in an array, each input mirror 31 being located on the optical axis of one input fiber 11, and different input mirrors 31 being located on the optical axes of different input fibers 11. The output micromirror array 40 includes multiple output mirrors 41 arranged in an array, each output mirror 41 being located on the optical axis of one output fiber 21, and different output mirrors 41 being located on the optical axes of different output fibers 21.

[0045] The path control unit 50 is used to output the light beam received by the target input fiber from the target output fiber through the first path, provided that the first path is not faulty. The first path passes through a first input reflector and a first output reflector, wherein the first input reflector is one of a plurality of input reflectors 31 and is located on the optical axis of the target input fiber, and the first output reflector is one of a plurality of output reflectors 41 and is located on the optical axis of the target output fiber. The target input fiber is any one of a plurality of input fibers 11, and the target output fiber is any one of a plurality of output fibers 21, determined by the transmission path of the light beam.

[0046] The path control unit 50 is also used to output the beam received by the target input fiber from the target output fiber via a second path in the event of a failure of the first path. The second path passes through one of the multiple input reflectors 31 and one of the multiple output reflectors 41, and the input reflector 31 traversed by the second path is different from the first input reflector, and / or the output reflector 41 traversed by the second path is different from the first output reflector. That is, both the first and second paths can be divided into three sub-paths: between the target input fiber and the input micromirror array 30, between the input micromirror array 30 and the output micromirror array 40, and between the output micromirror array 40 and the target output fiber. At least two sub-paths in the first and second paths are different.

[0047] In this embodiment, when the first path fails, different paths can be selected by controlling the input micromirror array 30, the output micromirror array 40 and the path control unit 50 to output the beam received by the target input fiber from the target output fiber.

[0048] For example, when the first input reflector and / or the first output reflector malfunctions, the light beam received by the target input fiber can be transmitted to the target output fiber via a second path and then output from the target output fiber. In this case, the optical path between the target input fiber and the target output fiber can be restored simply by configuring the input micromirror array 30, the output micromirror array 40, and the path control unit 50 within the optical switching device, without the need to reconnect the fibers, thereby shortening the service interruption time.

[0049] For example, in Figure 1 In the illustrated embodiment, the number of input optical fibers 11 and the number of output optical fibers 21 are equal, both being nine. In other embodiments, the number of input optical fibers 11 and the number of output optical fibers 21 may differ. Furthermore, this application embodiment does not limit the number of input optical fibers 11 and the number of output optical fibers 21, and can set them according to actual needs. For example, they can be 100-10000.

[0050] In this embodiment, the path control unit 50 includes a first dimmer 51. The first dimmer 51 is located between the input fiber array 10 and the input micromirror array 30, and is used to transmit the light beam received by the target input fiber to the first input reflector, or to refract the light beam emitted from the target input fiber to the second input reflector. The second input reflector is a different input reflector 31 from the first input reflector. In this embodiment, the first dimmer 51 can receive the light beam output from the target input fiber and control the emission direction of the received light beam, thereby outputting the light beam from the target input fiber to the first input reflector or the second input reflector.

[0051] In its first state, the first dimmer 51 does not change the propagation direction of the beam output from the target input fiber, directly transmitting the beam received from the target input fiber. In this case, the beam output from the target input fiber is output to the first input mirror through the first dimmer 51. In its second state, the first dimmer 51 changes the propagation direction of the beam output from the target input fiber, causing it to deviate from the optical axis of the target input fiber, thereby allowing the beam output from the target input fiber to pass through the first dimmer 51 and be output to the second input mirror.

[0052] To reduce the requirement of the first dimmer 51 for deflecting the propagation direction of the beam output from the target input fiber, the first input mirror and the second input mirror are adjacent to each other. In other embodiments, the second input mirror can be any input mirror 31 within the allowable range of the deflection capability of the first dimmer 51. For example, the second input mirror can be spaced apart from the first input mirror by one or two input mirrors 31.

[0053] For example, the second input mirror is one of the idle input mirrors surrounding the first input mirror. That is, the input fiber 11 corresponding to the second input mirror has no output beam. This reduces the need for reconfiguration of other optical paths by the optical switching device.

[0054] Optionally, the first dimmer 51 includes a plurality of first dimming regions 51a arranged in an array. The center of each first dimming region 51a is located on the optical axis of an input fiber 11, and the optical axes of the centers of different first dimming regions 51a belong to different input fibers 11. In this way, each first dimming region 51a can control the propagation direction of the beam output from the corresponding input fiber 11 to propagate the beam output from the corresponding input fiber 11 to the desired input reflector.

[0055] In practice, the orthographic projection of each input optical fiber 11 onto the surface of the first dimmer 51 is located within the corresponding first dimming region 51a, so that the first dimming region 51a can control the propagation direction of the beam output from the corresponding input optical fiber.

[0056] For example, the first state of the first dimmer 51 refers to the first dimming region 51a corresponding to the target input fiber being de-energized, and the second state of the first dimmer 51 refers to the first dimming region 51a corresponding to the target input fiber being energized. In most cases, the optical path between the target input fiber and the target output fiber is the aforementioned first path. In this case, de-energizing the first dimming region 51a corresponding to the target input fiber helps reduce the power consumption of the optical switching device.

[0057] In this embodiment, the path control unit 50 further includes a second dimmer 52. The second dimmer 52 is located between the output fiber array 20 and the output micromirror array 40, and is used to transmit the light beam emitted from the first output reflector to the target output fiber, or to refract the light beam emitted from the second output reflector among the multiple input reflectors to the target output fiber. The second output reflector is an output reflector 41 that is different from the first output reflector. In a first state, the second dimmer 52 does not change the propagation direction of the light beam emitted from the first output reflector, and directly transmits the light beam received from the first output reflector. In this case, the light beam emitted from the first output reflector passes through the second dimmer 52 and is output to the target output fiber and then output through the target output fiber. In a second state, the second dimmer 52 changes the propagation direction of the light beam emitted from the second output reflector. After passing through the second dimmer 52, the light beam emitted from the second output reflector is aligned with the optical axis of the target output fiber, thereby allowing the light beam emitted from the second output reflector to pass through the second dimmer 52 and be output from the target output fiber.

[0058] It should be noted that, in the absence of the second dimmer 52, although the orientation of the second output reflector can be adjusted so that the beam emitted from the second output reflector can reach the target output fiber, the optical axis of the target output fiber does not pass through the second output reflector. Even if the second output reflector is adjusted so that the beam emitted from it can reach the target output fiber, the angle at which the beam reaches the target output fiber deviates significantly from the direction of the optical axis of the target output fiber. Therefore, the loss is significant, and the beam cannot be output normally from the target output fiber.

[0059] To reduce the requirement of the second dimmer 52 on the deflection capability of the beam output from the second output mirror, the first and second output mirrors are adjacent to each other. In other embodiments, the second output mirror can be any output mirror 41 within the allowable range of the deflection capability of the second dimmer 52. For example, the second output mirror can be spaced apart from the first output mirror by one or two output mirrors 41.

[0060] Optionally, the second output reflector is one of the idle output reflectors surrounding the first output reflector. That is, there is currently no beam that needs to be output from the output fiber 21 corresponding to the second output reflector. This reduces the need for reconfiguration of other optical paths by the optical switching device.

[0061] Optionally, the second dimmer 52 includes a plurality of second dimming regions 52a arranged in an array. The center of each of the plurality of second dimming regions 52a is located on the optical axis of an output fiber 21, and the optical axes of the centers of different second dimming regions 52a belong to different output fibers 21. Since the optical axis of each output fiber 21 passes through an output reflector 41, each second dimming region 52a is located between an output fiber 21 and an output reflector 41. In this way, each second dimming region 52a can control the propagation direction of the received light beam to output the light beam from the desired output fiber.

[0062] In practice, the orthographic projection of each output fiber 21 on the surface of the second dimmer 52 is located within the corresponding second dimming region 52a, so that the second dimming region 52a can control the propagation direction of the beam from the output micromirror array 40, so that the beam is output from the target output fiber.

[0063] For example, the first state of the second dimmer 52 refers to the second dimming region 52a corresponding to the target output fiber being de-energized, and the second state of the second dimmer 52 refers to the second dimming region 52a corresponding to the target output fiber being energized. In most cases, the optical path between the target input fiber and the target output fiber is the aforementioned first path. In this case, de-energizing the second dimming region 52a corresponding to the target output fiber helps reduce the power consumption of the optical switching device.

[0064] In this embodiment, both the first dimmer 51 and the second dimmer 52 are transmissive spatial light modulators, such as liquid crystal spatial light modulators. Using liquid crystal spatial light modulators as the first dimmer 51 and the second dimmer 52 allows for adjustment of the deflection direction of the liquid crystal molecules by controlling the voltage applied to the liquid crystal, thereby adjusting the emission direction of the received light beam. This method is easy to implement and has low cost.

[0065] The structure of a liquid crystal spatial light modulator is illustrated below.

[0066] The liquid crystal spatial light modulator includes a first substrate and a second substrate connected opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate. The first substrate includes a first sub-substrate, multiple gate lines, and multiple data lines. The multiple gate lines and multiple data lines are insulated from each other and are arranged crosswise on one side of the first sub-substrate, forming multiple pixel regions arranged in an array. Each pixel region has a pixel driving circuit and a pixel electrode electrically connected to the pixel driving circuit. The pixel driving circuit is electrically connected to one gate line and one data line, respectively. The second substrate includes a second sub-substrate and a common electrode. The common electrode is located on the side of the second sub-substrate facing the first substrate and covers all pixel regions. Both the common electrode and the pixel electrode are made of a transparent conductive material, such as indium tin oxide. The pixel driving circuit, pixel electrode, liquid crystal layer, and common electrode in each pixel region constitute a pixel. By controlling the voltage of the pixel electrode and the common electrode in each pixel, the effective refractive index of the liquid crystal layer in each pixel can be controlled, thereby controlling the emission direction of the light beam in that pixel.

[0067] Optionally, the liquid crystal layer is a single layer of liquid crystal molecules. In the embodiments of this application, the deflection angle of each first dimming region 51a or second dimming region 52a relative to the propagation direction of the light beam is small, and a single layer of liquid crystal molecules is sufficient to achieve this deflection angle. Furthermore, using a single layer of liquid crystal molecules results in less light beam loss, which is beneficial for reducing the insertion loss of the optical switching device.

[0068] In other embodiments, the liquid crystal layer comprises multiple layers of liquid crystal molecules to meet the requirement of deflecting the propagation direction of the light beam.

[0069] When the first dimmer 51 is a liquid crystal spatial light modulator, each first dimming region 51a includes one or more pixels. By applying a voltage to the pixels in the first dimming region 51a corresponding to the target input optical fiber, the refractive index of the liquid crystal layer in the first dimming region 51a corresponding to the target input optical fiber can be changed, thereby causing the propagation direction of the light beam emitted from the first dimming region 51a to deviate from the optical axis of the target input optical fiber, and thus causing the light beam emitted from the first dimming region 51a to reach the second input reflector.

[0070] Similarly, when the second dimmer 52 is a liquid crystal spatial light modulator, each second dimming region 52a includes one or more pixels. By applying a voltage to the pixels in the second dimming region 52a corresponding to the target output fiber, the refractive index of the liquid crystal layer in the second dimming region 52a corresponding to the target output fiber can be changed, causing the second dimming region 52a corresponding to the target output fiber to deflect the propagation direction of the light beam from the second output reflector to the optical axis direction of the target output fiber, thereby causing the light beam emitted from the second dimming region 52a to be output from the target output fiber.

[0071] It should be noted that in other embodiments, the first dimmer 51 and the second dimmer 52 may also employ other types of spatial light modulators, and this application embodiment does not impose any limitations on this. For example, the first dimmer 51 and the second dimmer 52 may employ spatial light modulators based on phase change material (PCM).

[0072] A PCM-based spatial light modulator comprises multiple dimming structures arranged in an array, each located within a dimming region. Each dimming structure includes a stacked variable-index layer and an optical medium layer. The variable-index layer can be made of a phase change material (PCM), meaning the variable-index layer is made of PCM. PCM has crystalline (C-state) and amorphous (A-state) states. The phase state of PCM changes upon heating, for example, switching from the C-state to the A-state, or vice versa. When PCM is in the C-state, it has a first refractive index; when PCM is in the A-state, it has a second refractive index, with the first refractive index being greater than the second refractive index. Optionally, the PCM can be any of the following materials: antimony selenide (Sb₂Se₃), antimony sulfide (Sb₂S₃), tellurium sulfide (TeS₂), germanium antimony tellurium (GST, such as Ge₂Sb₂Te₅), antimony tritelluride (Sb₇Te₃), germanium tellurium sulfide, germanium arsenide sulfide, germanium antimony selenide (GSSE, such as GeSbSe), germanium tellurium selenide, and germanium antimony selenide tellurium (GSST, i.e., GeSbSeTe). The photodiode layer can be made of a transparent conductive material, such as graphene, ITO, IZO, and doped silicon. In this way, the photodiode layer can directly generate heat under the action of the excitation signal, causing a phase change in the phase change material, thereby causing a change in the refractive index of the variable-index layer.

[0073] The refractive index of the optical dielectric layer matches either the first refractive index or the second refractive index. In this embodiment, matching the refractive index of A with the refractive index of B means that the refractive index of A is the same as or similar to the refractive index of B. For example, the ratio of the difference between the refractive indices of A and B to the refractive index of A is within 10%, such as within 5%. When the refractive index of the optical dielectric layer matches the refractive index of the variable refractive index layer, the dimming structure transmits the light beam directly without changing the propagation direction of the received light beam; while when the refractive index of the optical dielectric layer does not match the refractive index of the variable refractive index layer, the dimming structure transmits the light beam while changing the propagation direction of the received light beam.

[0074] Optionally, both the input micromirror array 30 and the output micromirror array 40 are micro-electro-mechanical system (MEMS) micromirror arrays. Each input mirror 31 and each output mirror 41 is a drivable mirror, and each drivable mirror can be uniaxially rotatable or biaxially rotatable. This application embodiment does not limit the driving method of the drivable mirrors; it can be piezoelectric, electrothermal, electrostatic, or electromagnetic, etc.

[0075] Optionally, the optical switching device further includes an input lens array 70. The input lens array 70 includes multiple collimating lenses 71, each corresponding to one of the input optical fibers 11. Each collimating lens 71 is used to collimate the beam output from its corresponding input optical fiber 11. Collimating the beam output from the input optical fiber 11 using the collimating lenses 71 reduces the divergence angle of the beam, allowing the subsequent input micromirror array 30 and output micromirror array 40 to process the beam more effectively, and also reducing beam loss during transmission.

[0076] Optionally, the collimating lens 71 can be integrated at one end of the input fiber 11, or arranged at a distance from the input fiber 11.

[0077] Optionally, the optical switching device further includes an output lens array 90. The output lens array 90 includes multiple converging lenses 91, each corresponding to one of the multiple output optical fibers 21. Each converging lens 91 is used to converge the received light beam and output it to its corresponding output optical fiber 21. By converging the light beam through the converging lenses 91 before outputting it to the output optical fiber 21, coupling with the output optical fiber 21 is facilitated, coupling efficiency is improved, and light beam loss during transmission is reduced.

[0078] Optionally, the converging lens 91 can be integrated at one end of the output optical fiber 21, or arranged at intervals from the output optical fiber 21.

[0079] In practice, the aforementioned input fiber array 10, output fiber array 20, input micromirror array 30, output micromirror array 40, and path control unit 50 are all housed within the housing.

[0080] The following is combined Figures 1 to 4 The working process of the optical switching device provided in the embodiments of this application will be described. Figures 1 to 4 The arrows in the diagram indicate the propagation path of the light beam.

[0081] like Figure 1As shown, when both the first input reflector and the first output reflector are functioning correctly, the light beam output from the target input fiber passes through the first dimmer 51, with the beam propagation direction remaining unchanged, and propagates to the first input reflector. The first input reflector reflects the received light beam to the first output reflector, and the first output reflector reflects the received light beam to the second dimmer 52. The propagation direction of the light beam emitted from the first output reflector is the same as the optical axis direction of the target output fiber. The light beam emitted from the first output reflector passes through the second dimmer 52, with the beam propagation direction remaining unchanged, and is then output from the target output fiber.

[0082] like Figure 2 As shown, when the first input reflector fails but the first output reflector does not fail, the beam output from the target input fiber passes through the first dimmer 51, and the beam's propagation direction changes, propagating to the second input reflector. The second input reflector reflects the received beam back to the first output reflector, and the first output reflector reflects the received beam back to the second dimmer 52. The propagation direction of the beam emitted from the first output reflector is the same as the optical axis direction of the target output fiber. The beam emitted from the first output reflector passes through the second dimmer 52, and the beam's propagation direction remains unchanged, before being output from the target output fiber.

[0083] like Figure 3 As shown, when the first input reflector is functioning correctly but the first output reflector is faulty, the light beam output from the target input fiber passes through the first dimmer 51, and the beam propagation direction remains unchanged as it propagates to the first input reflector. The first input reflector reflects the received beam to the second output reflector, which in turn reflects the received beam to the second dimming region 52a of the second dimmer 52, which corresponds to the target output fiber. The propagation direction of the beam emitted from the second output reflector forms an angle with the optical axis of the target output fiber. The second dimmer 52 adjusts the propagation direction of the beam from the second output reflector, so that the beam propagation direction becomes the same as the optical axis of the target output fiber after passing through the second dimmer 52, and then it is output from the target output fiber.

[0084] like Figure 4As shown, when both the first input reflector and the first output reflector fail, the beam output from the target input fiber passes through the first dimmer 51, changing its propagation direction and propagating to the second input reflector. The second input reflector reflects the received beam to the second output reflector, which in turn reflects the received beam to the second dimmer 52. The propagation direction of the beam emitted from the second output reflector forms an angle with the optical axis of the target output fiber. The second dimmer 52 adjusts the propagation direction of the beam from the second output reflector, so that the beam emitted from the second output reflector, after passing through the second dimmer 52, changes its propagation direction to be the same as the optical axis of the target output fiber, and then outputs from the target output fiber.

[0085] It should be noted that, Figures 1 to 4 In the illustrated embodiment, the path control unit 50 includes a first dimmer 51 and a second dimmer 52. It can re-establish an optical path between the target input fiber and the target output fiber in three cases: the first input reflector fails but the first output reflector does not fail; the first input reflector fails but the first output reflector does not fail; and both the first input reflector and the first output reflector fail, so as to transmit the light beam received by the target input fiber to the target output fiber.

[0086] In some other embodiments, the path control unit 50 may include a first dimmer 51 but not a second dimmer 52. In this case, in the event of a failure of the first input reflector, the beam output from the target input fiber can be transmitted to the second input reflector via the first dimmer 51, the received beam can be reflected to the first output reflector via the second input reflector, and the received beam can be reflected to the target output fiber via the first output reflector.

[0087] In other embodiments, the path control unit 50 may include a second dimmer 52 instead of a first dimmer 51. In this case, if the first output reflector fails, the beam output from the target input fiber can be reflected to the second output reflector through the first input reflector, the received beam can be reflected to the position corresponding to the target output fiber in the second dimmer 52 through the second output reflector, and the beam emitted from the second output reflector can be refracted to the target output fiber through the second dimmer 52.

[0088] In this embodiment, the light beam carries service data, which may also be referred to as optical signal, service light, or service optical signal, etc.

[0089] Figure 5 This is a schematic flowchart illustrating a control method for an optical switching device according to an embodiment of this application. This control method is used to control any of the aforementioned optical switching devices. For example... Figure 5 As shown, the control method includes the following steps.

[0090] 501: Determine the target input fiber and the target output fiber.

[0091] This application does not limit the method for determining the target input fiber and the target output fiber. For example, the target input port and the target output port can be determined according to the upper-layer instructions. The input fiber connected to the target input port is the target input fiber, and the fiber corresponding to the target output port is the target output fiber.

[0092] 502: Control the input micromirror array, the output micromirror array, and the path control unit to output the beam received by the target input fiber from the target output fiber through the first path when the first path is not faulty, or to output the beam received by the target input fiber from the target output fiber through the second path when the first path is faulty.

[0093] for Figure 1 For the optical switching device with the structure shown, step 502 includes any of the following methods.

[0094] In the first case, if it is determined that the first input reflector is faulty and the first output reflector is not faulty, the first dimmer is controlled to refract the light beam output from the target input fiber to the second input reflector, the second input reflector is controlled to reflect the received light beam to the first output reflector, the first output reflector is controlled to reflect the received light beam to the second dimmer, and the second dimmer is controlled to transmit the light beam emitted from the first output reflector to the target output fiber.

[0095] In this first method, the first dimming area (i.e., the first dimming area passing through the optical axis of the target input fiber) in the first dimmer can be energized, thereby controlling the first dimmer to refract the light beam output from the target input fiber to the second input mirror; the orientation (or mirror direction) of the second input mirror can be controlled so that the second input mirror reflects the received light beam to the first output mirror; the orientation of the first output mirror can be controlled so that the first output mirror reflects the received light beam to the second dimming area of ​​the second dimmer corresponding to the target output fiber, and the second dimming area in the second dimmer corresponding to the target output fiber can be de-energized, thereby controlling the second dimmer to transmit the light beam emitted from the first output mirror to the target output fiber.

[0096] The second method involves controlling the first dimmer to transmit the beam output from the target input fiber to the first input mirror when it is determined that the first output mirror is faulty and the first input mirror is not faulty. The first dimmer is then controlled to reflect the received beam to the second output mirror, the second output mirror is then controlled to reflect the received beam to the second dimmer, and the second dimmer is then controlled to refract the beam emitted from the second output mirror to the target output fiber.

[0097] In this second method, the first dimming area corresponding to the target input fiber in the first dimmer can be de-energized, thereby controlling the first dimmer to transmit the beam output from the target input fiber to the first input reflector; the orientation of the first input reflector can be controlled so that the first input reflector reflects the received beam to the second output reflector; the orientation of the second output reflector can be controlled so that the second output reflector reflects the received beam to the second dimming area of ​​the second dimmer corresponding to the target output fiber, and the second dimming area corresponding to the target output fiber in the second dimmer can be energized, thereby controlling the second dimmer to refract the beam emitted from the second output reflector to the target output fiber.

[0098] The third method involves controlling the first dimmer to refract the beam output from the target input fiber to the second input mirror when both the first input mirror and the first output mirror are determined to be faulty. The second input mirror is then controlled to reflect the received beam to the second output mirror. The second output mirror is then controlled to reflect the received beam to the second dimmer, and the second dimmer is controlled to refract the beam emitted from the second output mirror to the target output fiber.

[0099] In this third method, the first dimming region corresponding to the target input fiber in the first dimmer can be energized, thereby controlling the first dimmer to refract the light beam output from the target input fiber to the second input reflector; the orientation (or mirror direction) of the second input reflector can be controlled so that the second input reflector reflects the received light beam to the second output reflector; the orientation of the second output reflector can be controlled so that the second output reflector reflects the received light beam to the second dimming region of the second dimmer corresponding to the target output fiber, and the second dimming region corresponding to the target output fiber in the second dimmer can be energized, thereby controlling the second dimmer to refract the light beam emitted from the second output reflector to the target output fiber.

[0100] It is evident that this control method can quickly adjust the propagation path of the light beam by controlling the input micromirror array, the output micromirror array, the first dimmer, and the second dimmer in the event of one or both of the first input reflector and the first output reflector failure, thereby restoring the optical path between the target input fiber and the target output fiber with a short service interruption time.

[0101] For an optical switching device that includes a first dimmer but not a second dimmer, step 502 includes: if a fault is determined in the first input mirror, controlling the first dimmer to refract the light beam output from the target input fiber to the second input mirror, controlling the second input mirror to reflect the received light beam to the first output mirror, and controlling the first output mirror to reflect the received light beam to the target output fiber. The control method for the first dimmer is the same as the control method for the first dimmer described in the first method above.

[0102] For an optical switching device that includes a second dimmer but not a first dimmer, step 502 includes: if a fault is determined in the first output reflector, controlling the first input reflector to reflect the light beam output from the target input fiber to the second output reflector; controlling the second output reflector to reflect the received light beam to the position corresponding to the target output fiber in the second dimmer; and controlling the second dimmer to refract the light beam emitted from the second output reflector to the target output fiber. The control method for the second dimmer is the same as the control method for the second dimmer described in the first method above.

[0103] In one possible implementation, in step 502, a small portion of light can be split from the target input fiber for optical power detection to obtain a first power value, and a small portion of light can be split from the target output fiber for optical power detection to obtain a second power value. Based on the first power value and the second power value, it can be determined whether the optical path between the target input fiber and the target output fiber is normal.

[0104] If the difference between the first power value and the second power value is greater than the threshold, it indicates that the optical path between the target input fiber and the target output fiber is abnormal; if the difference between the first power value and the second power value is not greater than the threshold, it indicates that the optical path between the target input fiber and the target output fiber is normal.

[0105] When it is determined that the optical path between the target input fiber and the target output fiber is abnormal based on the first power value and the second power value, firstly, control the path control unit, input micromirror array, and output micromirror array according to the aforementioned Case 1. If the optical path between the target input fiber and the target output fiber returns to normal, it indicates that the first input reflector is faulty. If the optical path between the target input fiber and the target output fiber does not return to normal, then control the path control unit, input micromirror array, and output micromirror array according to the aforementioned Case 2. If the optical path between the target input fiber and the target output fiber returns to normal, it indicates that the second input reflector is faulty. If the optical path between the target input fiber and the target output fiber does not return to normal, then control the path control unit, input micromirror array, and output micromirror array according to the aforementioned Case 3.

[0106] By trying three second paths in sequence, the optical path between the target input fiber and the target output fiber can be quickly restored, and the faulty reflector can be recorded for subsequent processing. For example, the second path is used to avoid the faulty reflector before the fault is cleared.

[0107] Figure 6 This is a schematic diagram of the structure of a control device for an optical switching device provided in an embodiment of this application. Figure 6 As shown, the control device 600 includes a determination module 601 and a control module 602. The determination module 601 is used to determine the target input fiber and the target output fiber. The control module 602 is used to control the input micromirror array, the output micromirror array, and the path control unit, so that, if the first path is not faulty, the light beam received by the target input fiber is output from the target output fiber through the first path; or, if the first path is faulty, the light beam received by the target input fiber is output from the target output fiber through the second path.

[0108] Optionally, when the path control unit includes the aforementioned first dimmer and second dimmer, the control module 602 is configured to, when it is determined that the first input reflector is faulty and the first output reflector is not faulty, control the first dimmer to refract the light beam output from the target input fiber to the second input reflector, control the second input reflector to reflect the received light beam to the first output reflector, control the first output reflector to reflect the received light beam to the second dimmer, and control the second dimmer to transmit the light beam emitted from the first output reflector to the target input fiber; or, when it is determined that the first output reflector is faulty and the first input reflector is not faulty, control the first dimmer to transmit the light beam output from the target input fiber to the second input reflector. An input reflector is configured to control the first input reflector to reflect the received light beam to the second output reflector, control the second output reflector to reflect the received light beam to the second dimmer, and control the second dimmer to refract the light beam emitted from the second output reflector to the target output fiber; or, if both the first input reflector and the first output reflector are determined to be faulty, the first dimmer is configured to refract the light beam output from the target input fiber to the second input reflector, control the second input reflector to reflect the received light beam to the second output reflector, control the second output reflector to reflect the received light beam to the second dimmer, and control the second dimmer to refract the light beam emitted from the second output reflector to the target output fiber.

[0109] When the path control unit includes the aforementioned first dimmer but not the second dimmer, the control module 602 is used to, in the event that the first input reflector is faulty, control the first dimmer to refract the beam output from the target input fiber to the second input reflector, control the second input reflector to reflect the received beam to the first output reflector, and control the first output reflector to reflect the received beam to the target output fiber, thereby outputting the beam from the target output fiber.

[0110] When the path control unit includes the aforementioned second dimmer but not the first dimmer, the control module 602 is used to, in the event that the first output reflector is faulty, control the first input reflector to reflect the beam output from the target input fiber to the second output reflector, control the second output reflector to reflect the received beam to the position corresponding to the target output fiber in the second dimmer, and control the second dimmer to refract the beam emitted from the second output reflector to the target output fiber, thereby outputting the beam from the target output fiber.

[0111] It should be noted that the control device provided in the above embodiments is only illustrated by the division of the above functional modules when controlling the optical switching device. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the control device for the optical switching device provided in the above embodiments and the control method embodiments for the optical switching device belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0112] The descriptions of the processes corresponding to the above-mentioned figures each have their own emphasis. For parts of a process that are not described in detail, please refer to the relevant descriptions of other processes.

[0113] This application also provides a control device for an optical switching device, which is a computer device 700. For example... Figure 7 As shown, the computer device 700 includes a bus 702, a processor 704, a memory 706, and a communication interface 708. The processor 704, the memory 706, and the communication interface 708 communicate with each other via the bus 702. It should be understood that this application does not limit the number of processors and memories in the computer device 700.

[0114] The 702 bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 7The bus 702 may be represented by a single line, but this does not mean that there is only one bus or one type of bus. The bus 702 may include a path for transmitting information between various components of the computer device 700 (e.g., memory 706, processor 704, communication interface 708).

[0115] Processor 704 may include any one or more processors such as a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), or a digital signal processor (DSP).

[0116] The memory 706 may include volatile memory, such as random access memory (RAM). The processor 704 may also include non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid state drive (SSD).

[0117] The memory 706 stores executable program code, and the processor 704 executes the executable program code to implement the functions of the aforementioned modules, thereby realizing the control method of the optical switching device. That is, the memory 706 stores instructions for executing the control method of the optical switching device.

[0118] The communication interface 708 uses transceiver modules such as, but not limited to, network interface cards and transceivers to enable communication between the computer device 700 and other devices or communication networks.

[0119] This application also provides a computer program product containing instructions. The computer program product may be software or program products containing instructions, capable of running on a computer device or stored on any usable medium. When the computer program product is run on at least one computer device, it causes the at least one computer device to perform the aforementioned control method for the optical switching device.

[0120] This application also provides a computer-readable storage medium. The computer-readable storage medium can be any available medium that a computer device can store, or a data storage device such as a data center containing one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state drive). The computer-readable storage medium includes instructions that instruct the computer device to execute the aforementioned control method for an optical switching device.

[0121] This application also provides a chip. The chip includes a processor and a communication interface, the communication interface being connected to the processor; the processor is used to execute instructions so that the chip performs the aforementioned control method for the optical switching device.

[0122] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The “multiple” mentioned in the embodiments of this application refers to two or more. A and / or B indicate three possibilities: A; B; and A and B.

[0123] The above is merely one embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An optical switching device, characterized by, include: Input fiber optic array, output fiber optic array, input micromirror array, output micromirror array, and path control unit; The input fiber array includes multiple input fibers arranged in an array, the output fiber array includes multiple output fibers arranged in an array, the input micromirror array includes multiple input mirrors arranged in an array, each of the multiple input mirrors is located on the optical axis of one of the multiple input fibers, and the output micromirror array includes multiple output mirrors arranged in an array, each of the multiple output mirrors is located on the optical axis of one of the multiple output fibers; The path control unit is used to output the light beam received by the target input fiber among the plurality of input fibers from the target output fiber among the plurality of output fibers through the first path when the first path is not faulty. The first path passes through a first input reflector and a first output reflector, wherein the first input reflector is one of the plurality of input reflectors and is located on the optical axis of the target input fiber, and the first output reflector is one of the plurality of output reflectors and is located on the optical axis of the target output fiber. The path control unit is further configured to, in the event of a failure of the first path, output the light beam received by the target input optical fiber from the target output optical fiber via a second path, wherein the second path passes through one of the plurality of input reflectors and one of the plurality of output reflectors, and the input reflector passed by the second path is different from the first input reflector, and / or the output reflector passed by the second path is different from the first output reflector.

2. The optical switch device according to claim 1, wherein, The path control unit includes at least one of a first dimmer and a second dimmer. The first dimmer is located between the input fiber array and the input micromirror array, and is used to transmit the light beam received by the target input fiber to the first input mirror, or to refract the light beam emitted from the target input fiber to the second input mirror among the plurality of input mirrors; The second dimmer is located between the output fiber array and the output micromirror array, and is used to transmit the light beam emitted from the first output reflector to the target output fiber, or to refract the light beam emitted from the second output reflector among the plurality of input reflectors to the target output fiber.

3. The optical switch device according to claim 2, wherein, The first input reflector and the second input reflector are adjacent to each other, and / or the first output reflector and the second output reflector are adjacent to each other.

4. The optical switch device according to claim 2 or 3, characterized in that, The first dimmer includes a plurality of first dimming regions arranged in an array, the center of each of the plurality of first dimming regions being located on the optical axis of one of the plurality of input optical fibers.

5. The optical switch device according to claim 2 or 3, wherein The second dimmer includes a plurality of second dimming regions arranged in an array, wherein the center of each of the plurality of second dimming regions is located on the optical axis of one of the plurality of output optical fibers.

6. The optical switch device according to any one of claims 2 to 5, wherein, The first dimmer is a liquid crystal spatial light modulator, and the second dimmer is a liquid crystal spatial light modulator.

7. The optical switch device according to any one of claims 1 to 6, wherein It also includes an input lens array, which comprises a plurality of collimating lenses, each of which is used to collimate the beam output from one of the input optical fibers.

8. The optical switch device according to any one of claims 1 to 7, wherein, It also includes an output lens array, which includes multiple converging lenses, each of which is used to converge the received light beam and output it to an output optical fiber.

9. A control method of an optical switch device, characterized by, The control method for controlling the optical switching device as described in any one of claims 1 to 7 includes: Determine the target input fiber and the target output fiber; The input micromirror array, the output micromirror array, and the path control unit are controlled to output the light beam received by the target input optical fiber from the target output optical fiber through the first path when the first path is not faulty, or to output the light beam received by the target input optical fiber from the target output optical fiber through the second path when the first path is faulty.

10. The control method according to claim 9, characterized by Controlling the optical switching device as described in any one of claims 2 to 6, wherein controlling the input micromirror array, the output micromirror array, and the path control unit to output the light beam received by the target input optical fiber from the target output optical fiber via the second path includes: If it is determined that the first input reflector is faulty and the first output reflector is not faulty, the system controls the first dimmer to refract the light beam output from the target input fiber to the second input reflector, controls the second input reflector to reflect the received light beam to the first output reflector, controls the first output reflector to reflect the received light beam to the second dimmer, and controls the second dimmer to transmit the light beam emitted from the first output reflector to the target input fiber; or... If it is determined that the first output reflector is faulty, but the first input reflector is not faulty, the system controls the first dimmer to transmit the light beam output from the target input fiber to the first input reflector, controls the first input reflector to reflect the received light beam to the second output reflector, controls the second output reflector to reflect the received light beam to the second dimmer, and controls the second dimmer to refract the light beam emitted from the second output reflector to the target output fiber; or... If it is determined that both the first input reflector and the first output reflector are faulty, the first dimmer is controlled to refract the light beam output from the target input fiber to the second input reflector, the second input reflector is controlled to reflect the received light beam to the second output reflector, the second output reflector is controlled to reflect the received light beam to the second dimmer, and the second dimmer is controlled to refract the light beam emitted from the second output reflector to the target output fiber.

11. A control device of an optical switch device, characterized by comprising: For controlling the optical switching device as described in any one of claims 1 to 7, the control device comprises: The determination module is used to determine the target input fiber and the target output fiber; The control module is used to control the input micromirror array, the output micromirror array, and the path control unit to output the light beam received by the target input optical fiber from the target output optical fiber through the first path when the first path is not faulty, or to output the light beam received by the target input optical fiber from the target output optical fiber through the second path when the first path is faulty.

12. The control device of claim 11, wherein, For controlling the optical switching device as described in any one of claims 2 to 6, the control module is used to, If it is determined that the first input reflector is faulty and the first output reflector is not faulty, the first dimmer is controlled to refract the light beam output from the target input fiber to the second input reflector, the second input reflector is controlled to reflect the received light beam to the first output reflector, the first output reflector is controlled to reflect the received light beam to the second dimmer, and the second dimmer is controlled to transmit the light beam emitted from the first output reflector to the target input fiber. or, If it is determined that the first output reflector is faulty and the first input reflector is not faulty, the first dimmer is controlled to transmit the light beam output from the target input fiber to the first input reflector, the first input reflector is controlled to reflect the received light beam to the second output reflector, the second output reflector is controlled to reflect the received light beam to the second dimmer, and the second dimmer is controlled to refract the light beam emitted from the second output reflector to the target output fiber. or, If it is determined that both the first input reflector and the first output reflector are faulty, the first dimmer is controlled to refract the light beam output from the target input fiber to the second input reflector, the second input reflector is controlled to reflect the received light beam to the second output reflector, the second output reflector is controlled to reflect the received light beam to the second dimmer, and the second dimmer is controlled to refract the light beam emitted from the second output reflector to the target output fiber.

13. A computer device, comprising: include: A processor and a memory, the processor and the memory being connected, the processor being configured to perform the method as described in claim 9 or 10.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a software program that, when read and executed by one or more processors, can implement the method as described in claim 9 or 10.

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