Optical cross connection device

Abstract

An optical cross connection device (1), comprising: a first signal transmission component (10), an optical switching component (30), a first optical splitting component (41), a first scanning component (601), a first detector (701) and a second signal transmission component (20), wherein the first signal transmission component (10) is used for inputting a multi-channel optical signal; the first optical splitting component (41) is used for splitting the multi-channel optical signal into a first multi-channel optical signal and a second multi-channel optical signal; the first multi-channel optical signal is transmitted to the optical switching component (30), and the second multi-channel optical signal is reflected to the first scanning component (601); the first scanning component (601) is used for sequentially adjusting the angle thereof to reflect the second multi-channel optical signal to the first detector (701) beam by beam, each light beam comprising at least one optical signal; and the optical switching component (30) is used for deflecting the first multi-channel optical signal to acquire a deflected first multi-channel optical signal, and reflecting the first multi-channel optical signal to the second signal transmission component (20).

Description

Optical cross-connect equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on March 29, 2024, with application number 202410388674.7 and application name “Optical Cross-Connect Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the technical field of optical devices, and in particular to an optical cross-connect device. Background Art

[0003] An optical cross-connect (OXC) is a centralized optical cross-connect device that physically connects multiple optical input and output ports. It effectively manages fiber optic transmission networks and is a key tool for reliable network auto-wiring, network protection, recovery, and detection.

[0004] Optical cross-connect devices based on micro-electro-mechanical systems (MEMS) have high reliability and low insertion loss.

[0005] However, to ensure the reliability and stability of the entire system, the optical power signal at each port must be measured and reported promptly. As shown in Figure 1, the detection module is located outside the optical cross-connector, requiring the introduction of a splitter corresponding to the number of ports and the addition of lens array elements. This increases the cost of the solution when there are many optical input and output ports. Summary of the Invention

[0006] The embodiments of the present application provide an optical cross-connect device, which reduces the cost of the optical cross-connect device.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions:

[0008] According to a first aspect of an embodiment of the present application, an optical cross-connect device is provided, comprising: a first signal transmission component, an optical switching component, a first optical splitter component, a first scanning element, a first detector, and a second signal transmission component. The first signal transmission component is configured to input multiple optical signals, the first optical splitter component is configured to split the multiple optical signals into a first optical signal and a second optical signal, transmit the first optical signal to the optical switching component, and reflect the second optical signal to the first scanning element. The first scanning element is configured to sequentially adjust the angle of the second optical signal to reflect the second optical signal, one beam at a time, to the first detector, wherein each beam comprises at least one optical signal. The optical switching component is configured to deflect the first optical signal to obtain the deflected first optical signal and reflect the first optical signal to the second signal transmission component. Thus, only one optical splitter component is required between the first signal transmission component and the optical switching component to achieve multi-path optical splitting, effectively reducing the number of system components and significantly lowering costs. The first optical splitter component can extract a detection optical path from the main optical path, enabling real-time power detection of the main optical path channels. The second multi-path optical signal can be a multi-path optical signal arranged in an array. The second multi-path optical signal can be reflected beam by beam, or the second multi-path optical signal arranged in an array can be reflected row by row, or the second multi-path optical signal arranged in an array can be reflected column by column. Of course, the second multi-path optical signal can also be reflected every multiple rows or every multiple columns. The scanning component can reflect the multi-path optical signals in sequence, and the first detector can detect the power of each optical signal through the second optical lens. That is, the first scanning component can return the multi-path optical signals to the detector beam by beam (that is, path by path, multiple paths by path, row by row, or column by column) along the same path in a time-division manner. The detector only needs to be provided with a number of ports corresponding to the single return optical path of the first scanning component, which can reduce the size of the first detector.

[0009] In one optional implementation, the optical cross-connect device includes: a first optical lens, a first scanning element, a second optical lens, and a first detector; the first optical lens is configured to converge the second multi-path optical signal onto the first scanning element; the first scanning element is configured to reflect the converged second multi-path optical signal onto the second optical lens; and the second optical lens is configured to transmit the second multi-path optical signal reflected by the first scanning element to the first detector. This allows for real-time power detection of the input main optical path.

[0010] In one optional implementation, the first scanning element is further configured to reflect the converged second multi-path optical signal to the first optical lens, and the first optical lens is further configured to transmit the second multi-path optical signal reflected by the first scanning element to the first detector via the second optical lens. Thus, the second multi-path optical signal can pass through the first optical lens multiple times to optically shape the optical path, thereby multiplexing the first optical lens, reducing the number of lenses, and facilitating a reduction in system size.

[0011] In an optional implementation, the first signal transmission component includes: a first area and a second area, the first area is provided with a first array lens, and the second optical lens is arranged in the second area; the first signal transmission component is used to input the multi-path optical signal through the first array lens, the first scanning component is also used to reflect the converged second multi-path optical signal to the first optical lens, the first optical lens is also used to transmit the second multi-path optical signal reflected by the first scanning component to the first spectroscopic component, the first spectroscopic component is also used to reflect the second multi-path optical signal transmitted by the first optical lens to the second optical lens, and transmit it to the first detector through the second optical lens. Thus, the first optical lens, the first spectroscopic component and the first signal transmission component can be reused in the first detector, and the optical path of the first detector can reuse part of the main optical path, which is conducive to reducing the system size.

[0012] In an optional implementation, the optical cross-connect device further includes a third optical lens, wherein the first scanning component is further configured to reflect the converged second multi-path optical signal to the third optical lens, and the third optical lens is configured to transmit the second multi-path optical signal reflected by the first scanning component to the first detector via the second optical lens. Thus, the optical path of the first detector can be separated from the main optical path by the first optical splitter component, and the optical path of the first detector and the main optical path do not intersect, thereby decoupling the optical path of the first detector from the main optical path, avoiding interference between the optical paths of the first detector and the main optical path, and increasing the assembly tolerance of the various components in the system, including the signal transmission component, the optical splitter component, and the detector, thereby improving the reliability of the system assembly.

[0013] In an optional implementation, the first light splitting component includes a transflective light splitter and a transflective prism. Thus, the first light splitting component can split the light path into a main light path and a detection light path, and detect the detection light path without affecting the transmission of the main light path.

[0014] In an optional implementation, the cross-section of the first light splitting component is in the shape of an X. Thus, the X-shaped light splitting component supports bidirectional deflection of the light beam, and can realize forward transmission and reverse transmission.

[0015] In one optional implementation, the optical cross-connect device further includes: a second optical splitter component, a second scanning element, and a second detector; the second optical splitter component is configured to split the first multi-path optical signal, after deflection by the optical switching component, into a third multi-path optical signal and a fourth multi-path optical signal, transmit the third multi-path optical signal to the second signal transmission component, and reflect the fourth multi-path optical signal to the second scanning element; the second scanning element is configured to sequentially adjust the angle to reflect the fourth multi-path optical signal, one beam at a time, to the second detector, wherein each beam includes at least one optical signal. This allows further multiplexing of the main optical path, and the second detector performs real-time detection of the optical signal at the output end. The fourth multi-path optical signal can be a multi-path optical signal arranged in an array. The fourth multi-path optical signal can be reflected beam by beam, path by path, row by row, or column by column. This allows the second scanner to sequentially reflect the multi-path optical signals, and the second detector can detect the power of each optical signal through a fifth optical lens. In other words, the second scanner can return the multi-path optical signal to the detector in a time-division manner, beam by beam (i.e., path by path, row by row, or column by column) along the same path. The second detector only needs to be provided with a number of ports corresponding to the number of return optical paths of the second scanner, thereby reducing the size of the second detector.

[0016] In one optional implementation, the optical cross-connect device includes: a third optical lens, a second scanning element, a fifth optical lens, and a second detector; the third optical lens is configured to converge the fourth multi-path optical signal onto the second scanning element; the second scanning element is configured to reflect the converged fourth multi-path optical signal onto the fifth optical lens; and the fifth optical lens is configured to transmit the fourth multi-path optical signal reflected by the second scanning element to the second detector. This allows for real-time power detection of the main optical path channel at the output end.

[0017] In one optional implementation, the second scanning element is further configured to reflect the converged fourth multi-path optical signal to the third optical lens, and the third optical lens is further configured to transmit the fourth multi-path optical signal reflected by the second scanning element to the first detector via the fifth optical lens. Thus, the fourth multi-path optical signal can pass through the third optical lens multiple times to optically shape the optical path, thereby multiplexing the third optical lens, reducing the number of lenses, and facilitating a reduction in system size.

[0018] In an optional implementation, the second signal transmission component includes: a third area and a fourth area, the third area is provided with a second array lens, and the fifth optical lens is arranged in the fourth area; the second signal transmission component is used to output the multi-path optical signal through the second array lens, the second scanning component is also used to reflect the converged fourth multi-path optical signal to the third optical lens, the third optical lens is also used to transmit the fourth multi-path optical signal reflected by the second scanning component to the second spectroscopic component, the second spectroscopic component is also used to reflect the fourth multi-path optical signal transmitted by the third optical lens to the fifth optical lens, and transmit it to the second detector through the fifth optical lens. Thus, the third optical lens, the second spectroscopic component and the second signal transmission component can be reused in the second detector, and the optical path of the second detector can reuse part of the main optical path, which is conducive to reducing the system size.

[0019] Based on this implementation, the second optical splitter assembly includes a first optical splitter surface and a second optical splitter surface. The first optical splitter surface is used to split the first multi-path optical signal deflected by the optical switching assembly into a third multi-path optical signal and a fourth multi-path optical signal. The second optical splitter surface is used to reflect the fourth multi-path optical signal to the second detector. Thus, by providing the second optical splitter surface, the fourth multi-path optical signal can be better reflected to the second detector, achieving multiplexing between the main optical path and the detection optical path.

[0020] In an optional implementation, the first splitting surface is perpendicular to the second splitting surface. Thus, the angle between the first splitting surface and the second splitting surface can be adjusted according to the optical path, which can better reflect the fourth multi-path optical signal to the second detector, realizing multiplexing between the main optical path and the detection optical path.

[0021] In an optional implementation, the cross-sectional shape of the second light splitting component includes: X-shaped and T-shaped. Thus, the second light splitting component can be reused in the main light path and the detection light path.

[0022] In an optional implementation, the optical cross-connect device further includes a sixth optical lens. The second scanning component is further configured to reflect the converged fourth multi-path optical signal to the sixth optical lens. The sixth optical lens is configured to transmit the fourth multi-path optical signal reflected by the second scanning component to the second detector via the fifth optical lens. Thus, the optical path of the second detector can be separated from the main optical path by the second optical splitter component. The optical path of the second detector does not intersect with the main optical path, thereby decoupling the optical path of the second detector from the main optical path. This prevents interference between the optical paths of the second detector and the main optical path, increases the assembly tolerance of the various components in the system, including the signal transmission component, the optical splitter component, and the detector, and improves the reliability of the system assembly.

[0023] In an optional implementation, the optical cross-connect device further includes a light-shielding layer having a plurality of light-through holes formed therein, each of the plurality of light-through holes corresponding one-to-one to the first multi-path optical signals deflected by the optical switching assembly. Thus, the light-shielding layer can serve as an aperture to prevent crosstalk between adjacent optical paths.

[0024] In an optional implementation, the light-shielding layer is provided between the second light-splitting component and the optical switching component.

[0025] In an optional implementation, the light shielding layer is provided on the second light splitting component, thereby further reducing the space occupied by the light shielding layer.

[0026] In one optional implementation, the optical switching component includes: a first MEMS micromirror component and a second MEMS micromirror component, wherein the first MEMS micromirror component is configured to deflect the received first multi-path optical signal to obtain a deflected first multi-path optical signal, and the second MEMS micromirror component is configured to reflect the first multi-path optical signal deflected by the first MEMS micromirror component to the second optical splitter component. Thus, the optical paths of the first signal transmission component, the first MEMS micromirror component, the second MEMS micromirror component, and the second signal transmission component constitute a main optical path, resulting in a "Z"-shaped main optical path. This compact optical path facilitates device miniaturization.

[0027] In an optional implementation, the optical switching assembly further includes an optical shaping assembly disposed between the first MEMS micromirror assembly and the second MEMS micromirror assembly, the first MEMS micromirror assembly being configured to reflect the received first multi-path optical signal to the optical shaping assembly, and the optical shaping assembly being configured to reflect the first multi-path optical signal reflected by the first MEMS micromirror assembly to the output MEMS mirror. Thus, by disposing the optical shaping assembly, the main optical path is formed into a "W" shape. Under the same scale design, the micromirror rotation angle of the optical switching assembly corresponding to the "W"-shaped optical path is smaller, which helps reduce the design difficulty of the optical switching assembly.

[0028] A second aspect of an embodiment of the present application provides a cross-optical path detection method, which is applied to an optical cross-connect device, wherein the optical cross-connect device includes: a first signal transmission component, an optical switching component, a first splitting component, a first detector, and a second signal transmission component; the method includes: inputting a multi-path optical signal through the first signal transmission component; splitting the multi-path optical signal into a first multi-path optical signal and a second multi-path optical signal through the first splitting component, transmitting the first multi-path optical signal to the optical switching component, and reflecting the second multi-path optical signal to the first detector; obtaining a deflected first multi-path optical signal from the first multi-path optical signal through the optical switching component, and reflecting the first multi-path optical signal to the second signal transmission component.

[0029] In an optional implementation, the optical cross-connect device also includes: a second splitter component and a second detector; the method also includes: dividing the first multi-path optical signal after deflection by the optical switching component into a third multi-path optical signal and a fourth multi-path optical signal through the second splitter component, and transmitting the third multi-path optical signal to the second signal transmission component, and reflecting the fourth multi-path optical signal to the second detector.

[0030] According to a third aspect of an embodiment of the present application, a MEMS micromirror detection method for a cross optical path is provided, which is applied to an optical cross-connect device, wherein the optical cross-connect device comprises: a first signal transmission component, a first MEMS micromirror component, a second MEMS micromirror component, a first spectroscopic component, a second spectroscopic component, a first detector, a second detector, and a second signal transmission component; the method comprises: inputting a first detection light through the first signal transmission component; transmitting the first detection light to the first MEMS micromirror component through the first spectroscopic component, the first MEMS micromirror component being used to deflect the first detection light to obtain a first multi-path optical signal after deflection; reflecting the first multi-path optical signal through the second MEMS micromirror component; dividing the first multi-path optical signal reflected by the second MEMS micromirror component into a second multi-path optical signal and a third multi-path optical signal through the second spectroscopic component, transmitting the second multi-path optical signal to the second signal transmission component, and reflecting the third multi-path optical signal to the second detector.

[0031] The method also includes: inputting a second detection light through the second signal transmission component; transmitting the second detection light to the second MEMS micromirror component through the second light splitting component; deflecting the second detection light through the second MEMS micromirror component to obtain a fourth multi-path optical signal after deflection; reflecting the fourth multi-path optical signal through the first MEMS micromirror component; dividing the fourth multi-path optical signal reflected by the first MEMS micromirror component into a fifth multi-path optical signal and a sixth multi-path optical signal through the first light splitting component, transmitting the fifth multi-path optical signal to the first signal transmission component, and reflecting the sixth multi-path optical signal to the first detector.

[0032] In an optional implementation, the cross-sectional shape of the first light-splitting component and the cross-sectional shape of the second light-splitting component are both X-shaped.

[0033] According to a fourth aspect of the embodiments of the present application, a communication system is provided. The communication system at least includes the optical cross-connect device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic structural diagram of an optical cross-connect device;

[0035] FIG2a is a structural block diagram of a first optical cross-connect device provided in an embodiment of the present application;

[0036] FIG2 b is a structural block diagram of a second optical cross-connect device provided in an embodiment of the present application;

[0037] FIG3 is a structural block diagram of a third optical cross-connect device provided in an embodiment of the present application;

[0038] FIG4 is a schematic structural diagram of a first optical cross-connect device provided in an embodiment of the present application;

[0039] FIG5 is a schematic structural diagram of a second optical cross-connect device provided in an embodiment of the present application;

[0040] FIG6 is a schematic structural diagram of a third optical cross-connect device provided in an embodiment of the present application;

[0041] FIG7 is a schematic structural diagram of a fourth optical cross-connect device provided in an embodiment of the present application;

[0042] FIG8 is a schematic structural diagram of a fifth optical cross-connect device provided in an embodiment of the present application;

[0043] FIG9 is a structural block diagram of a fourth optical cross-connect device provided in an embodiment of the present application;

[0044] FIG10 is a block diagram of the structure of a fifth optical cross-connect device provided in an embodiment of the present application;

[0045] FIG11 is a schematic structural diagram of a sixth optical cross-connect device provided in an embodiment of the present application;

[0046] FIG12 is a schematic structural diagram of a seventh optical cross-connect device provided in an embodiment of the present application;

[0047] FIG13 is a schematic structural diagram of an eighth optical cross-connect device provided in an embodiment of the present application;

[0048] FIG14 is a schematic structural diagram of a ninth optical cross-connect device provided in an embodiment of the present application;

[0049] FIG15 is a schematic structural diagram of a tenth optical cross-connect device provided in an embodiment of the present application;

[0050] FIG16 is a schematic structural diagram of an eleventh optical cross-connect device provided in an embodiment of the present application;

[0051] FIG17 is a schematic structural diagram of an aperture provided in an embodiment of the present application;

[0052] FIG18 is a light path diagram of a light shielding layer provided in an embodiment of the present application;

[0053] FIG19 is a schematic structural diagram of a light splitting component provided in an embodiment of the present application;

[0054] FIG20 is a schematic diagram of a MEMS micromirror detection method in an optical cross-connect device provided in an embodiment of the present application;

[0055] FIG21 is a schematic diagram of another MEMS micromirror detection method in an optical cross-connect device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0057] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0058] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0059] An embodiment of the present application provides an optical cross-connect device, which can be used in a communication system, including a telecommunications network system and a data center network system.

[0060] For example, assuming that city A transmits signals to city B, the optical cross-connect equipment at the access convergence layer can aggregate wireless signals, home broadband signals, enterprise service signals, and other signals that need to be transmitted in the same area of ​​city A into signal C. The optical cross-connect equipment at the access convergence layer in multiple different areas will then aggregate the collected multiple signals C into signal D through the optical cross-connect equipment at the metropolitan convergence layer. The optical cross-connect equipment at the backbone transmission layer will then transmit signal D to city B. After receiving signal D, city B will separate signal D through the optical cross-connect equipment at the metropolitan convergence layer and the optical cross-connect equipment at the access convergence layer, and transmit the separated signals to the corresponding receiving devices.

[0061] In some embodiments, optical cross-connect devices are used in the metropolitan area aggregation layer and backbone transmission layer to aggregate and separate service signals and perform multi-dimensional service signal scheduling. Optical cross-connect devices can further combine the access-aggregated signals to achieve higher-capacity signal aggregation and transmit the aggregated signals over long distances.

[0062] The optical cross-connect device 1 at least includes: a housing 100 , a first signal transmission component 101 , an optical switching component 103 and a second signal transmission component 102 .

[0063] The housing 100 is configured to form a first area, in which the first signal transmission component 101, the optical switching component 103, and the second signal transmission component 102 are all disposed. The housing can be used to protect the first signal transmission component 101, the optical switching component 103, and the second signal transmission component 102.

[0064] In some embodiments, the first signal transmission component 101 can serve as an input terminal, and the second signal transmission component 102 can serve as an output terminal. The first signal transmission component 101 is used to input multiple optical signals, and the optical switching component 103 is used to deflect the multiple optical signals to obtain the deflected multiple optical signals and reflect the multiple optical signals to the second signal transmission component 102.

[0065] In other embodiments, the second signal transmission component 102 can serve as an input end, and the first signal transmission component 101 can serve as an output end. The second signal transmission component 102 is used to input multiple optical signals, and the optical switching component 103 is used to deflect the multiple optical signals to obtain the deflected multiple optical signals and reflect the multiple optical signals to the first signal transmission component 101.

[0066] The first signal transmission component 101 includes N input ports, and the second signal transmission component 102 includes N output ports. The N output ports correspond one-to-one to the N input ports, where N is an integer greater than 1.

[0067] In some embodiments, each input port is configured to input one optical signal, and N input ports can input N optical signals. The first signal transmission component 101 is configured to input multiple optical signals, and can input N optical signals through the N input ports. Correspondingly, the second signal transmission component 102 serves as an output port and can output N optical signals through the N output ports.

[0068] The optical switching component 103 includes: a first MEMS micromirror component 1031 and a second MEMS micromirror component 1032. The first MEMS micromirror component 1031 is used to deflect the received first multi-path optical signal to obtain the deflected first multi-path optical signal, and the second MEMS micromirror component 1032 is used to reflect the first multi-path optical signal deflected by the first MEMS micromirror component 1031 to the second splitter component.

[0069] The first MEMS micromirror assembly 1031 , for example, includes N input MEMS mirrors, and the second MEMS micromirror assembly 1032 includes N output MEMS mirrors.

[0070] The N input MEMS mirrors correspond to the N input ports in a one-to-one manner, and the N output MEMS mirrors correspond to the N output ports in a one-to-one manner.

[0071] The first MEMS micromirror assembly 1031 is configured to deflect around a deflection axis so as to reflect the received multi-path optical signals to the N output MEMS mirrors.

[0072] The N output MEMS mirrors are used to reflect the first optical signal reflected by the first MEMS micromirror component 1031 to the second signal transmission component 102 .

[0073] The optical switching assembly may include an input MEMS mirror having a number equal to or different from an output MEMS mirror.

[0074] To ensure the reliability and stability of the entire system, the power signal of each optical path must be measured and reported promptly. In some embodiments, a splitter component can be added to the optical fiber located outside the optical path of the first signal transmission component 101 and / or the second signal transmission component 102 to separate the detection light from the main optical path. The separated detection light is transmitted through the optical fiber and passes through components such as the lens array, lens, and scanner, so that light in the same row / column is detected by the same PD device.

[0075] For example, as shown in Figure 1, taking the output optical path including: a first output optical path and a second output optical path as an example, the optical cross-connect device 1 also includes: a first splitter 1041, a second splitter 1042, a lens array 105, a first optical lens 1051, a second optical lens 1052, a scanner 106, and a detector 107.

[0076] The first optical splitter 1041 is used to split the first output optical path into a first main optical path and a first detection optical path, further transmit the first main optical path along the optical fiber, and reflect the first detection optical path to the lens array 105 .

[0077] The second optical splitter 1042 is used to split the second output light path into a second main light path and a second detection light path, further transmit the second main light path along the optical fiber, and reflect the second detection light path to the lens array 105 .

[0078] The lens array 105 is used to shape the first detection light path and the second detection light path, and output the shaped detection light path, so that the first detection light path and the second detection light path are transmitted to the first optical lens 1051. The first optical lens 1051 is used to converge the first detection light path and the second detection light path to the scanner 106. Then the first detection light path and the second detection light path can be reflected by the scanner 106 to the second optical lens 1052, and enter the detector 107 through the second optical lens 1052.

[0079] The power of the optical path may be detected by the detector 107 .

[0080] However, when the number of transmission ports of the first signal transmission component and the second signal transmission component increases, the number of optical paths in the system increases accordingly, and a corresponding number of optical splitters need to be introduced, and the size of the lens array needs to be adjusted, which increases the cost and the size of the equipment, which is not conducive to the miniaturization of the optical cross-connection equipment.

[0081] To this end, an embodiment of the present application provides an improved optical cross-connect device 1, in which a light splitting component is arranged in a main optical path, thereby achieving multiplexing of the main optical path and reducing the size of the optical cross-connect device.

[0082] As shown in FIG. 2 a , the optical cross-connect device 1 includes: a first signal transmission component 10 , an optical switching component 30 , a first optical splitting component 41 , a first detection unit component 51 and a second signal transmission component 20 .

[0083] The first signal transmission component 10 and the second signal transmission component 20 can employ the same structure. For example, the first signal transmission component 10 can include a lens array for collimating the system's optical signals and enabling input and output of optical signals. An optical switching component is used to deflect, align, and select channels for the optical signals.

[0084] The first light splitting component 41 includes: a transflective light splitter 41a as shown in Figures 4, 5, and 6, and a transflective prism 41b as shown in Figure 7. The transflective prism may include one or more prisms, that is, the transflective prism may be a prism group.

[0085] In some embodiments, the cross-section of the first light splitting component 41 is X-shaped.

[0086] The first optical splitter component 41 is used to split the multi-path optical signals proportionally, and divide the multi-path optical signals into two paths: one path is transmitted to the MEMS micromirror for modulation, and the other path is transmitted to the detection unit component for real-time detection, and the detection optical signal is deflected to achieve spatial splitting and optical path multiplexing.

[0087] The first optical splitter assembly 41 includes a first side and a second side that are opposite to each other. The first optical splitter assembly 41 can proportionally split the multiple optical signals incident on the first side, and can also proportionally split the multiple optical signals incident on the second side. In other words, the first optical splitter assembly 41 can proportionally split the multiple optical signals input in the forward direction, and can also proportionally split the multiple optical signals input in the reverse direction.

[0088] The first detection unit assembly 51 is used to detect the collection and scanning feedback of optical signals to realize the identification of the detected optical signals. Among them, the first signal transmission assembly 10 is used to input multiple optical signals, and the first optical splitting assembly 41 is used to split the multiple optical signals into a first multiple optical signal and a second multiple optical signal. The first multiple optical signal is transmitted to the optical switching assembly 30, and the second multiple optical signal is reflected to the first detection unit assembly 51. The optical switching assembly 30 is used to deflect the first multiple optical signal to obtain the deflected first multiple optical signal, and then reflect the first multiple optical signal to the second signal transmission assembly 20.

[0089] In this embodiment, when the optical cross-connect device 1 is in operation, multiple optical signals enter the optical cross-connect device 1 through the first signal transmission component, pass through the first optical splitter component 41 and the optical switch component 30, and are output by the second signal transmission component 20, forming a main optical path. In other words, the optical path containing the first multiple optical signals is the main optical path.

[0090] The second multi-path signal is extracted from the main optical path by the first optical splitter component 41, forming a detection optical path, which is then detected by the first detection unit component. In other words, the optical path containing the second multi-path signal is the detection optical path. The optical splitter component spatially splits the main optical path and the detection optical path, enabling real-time power detection of the main optical path.

[0091] In some embodiments, the first detection unit assembly 51 includes: a first scanning element 601 and a first detector 701. The first scanning element 601 is rotatable and is used to sequentially adjust its angle to reflect the second multiple optical signals beam by beam to the first detector 701. The second multiple optical signals may be multiple optical signals arranged in an array, each beam comprising at least one optical signal. Reflecting the second multiple optical signals beam by beam may involve reflecting the arrayed second multiple optical signals beam by beam, reflecting the arrayed second multiple optical signals row by row, or reflecting the arrayed second multiple optical signals column by column.

[0092] That is, the first scanning element 601 can reflect the detection light of different optical paths along the same optical path, so the optical device for receiving the optical signal reflected by the first scanning element 601 only needs to be provided with a number of lenses corresponding to the single return optical path of the scanning element, and the first detector 701 only needs to be provided with a number of ports corresponding to the single return optical path of the scanning element, which can reduce the size of the optical device and the detector.

[0093] The first detector 701 may be a photo detector (PD). Accordingly, the first detector includes a plurality of detection units arranged in an array. The plurality of detection units correspond one-to-one to the single or multiple optical signals reflected by the first scanning element 601, and can detect each optical signal reflected by the first scanning element in real time.

[0094] The optical cross-connect device 1 provided in the embodiment of the present application has a first optical splitter component 41 disposed between the first signal transmission component 10 and the optical switching component 30, and divides the multi-path optical signal into two paths: one path is transmitted to the MEMS micromirror for modulation, and the other path is transmitted to the detection unit component for real-time detection, so that the system has a real-time power detection function for the main optical path channel and realizes optical path multiplexing of the multi-path optical signal. Compared with the optical cross-connect device 1 in Figure 1, in which the optical splitter component and the detection unit component are disposed outside the system optical path, when the scale of the transmitted optical signal is the same, only one optical splitter component is required to realize optical splitting of the multi-path light without adding a lens array, effectively reducing the number of components in the system, having a higher space utilization rate of the optical path, and significantly saving system costs.

[0095] The present application does not impose any restrictions on the shape of the main optical path within the optical cross-connect device 1. In some implementations, as shown in FIG2b , the optical switching assembly 30 includes: a first MEMS micromirror assembly 301 and a second MEMS micromirror assembly 302 , wherein the first MEMS micromirror assembly 301 is configured to deflect the received first multi-path optical signal to obtain a deflected first multi-path optical signal, and the second MEMS micromirror assembly 302 is configured to reflect the first multi-path optical signal deflected by the first MEMS micromirror assembly 301 to the second optical splitting assembly.

[0096] When the optical cross-connect device 1 is in operation, multiple signal lights enter the optical cross-connect device 1 through the first signal transmission component, pass through the first optical splitter component 41, the first MEMS micromirror component 301 and the second MEMS micromirror component 302, and are output by the second signal transmission component 20 to form a main optical path, so that the main optical path is "Z"-shaped.

[0097] The main optical path in this embodiment adopts a Z-shaped design, and the optical path is compact and small in size, which is conducive to miniaturization of the device.

[0098] In other embodiments, as shown in FIG3 , the optical cross-connect device 1 further includes: an optical shaping component 303, which is used to shape the optical path. The optical shaping component 303 is arranged between the first MEMS micromirror component 301 and the second MEMS micromirror component 302. The first MEMS micromirror component 301 is further used to reflect the received first multi-path optical signal to the optical shaping component 303. The optical shaping component 303 is used to reflect the first multi-path optical signal reflected by the first MEMS micromirror component 301 to the second MEMS micromirror component 302.

[0099] When the optical cross-connect device 1 is in operation, multiple signal lights enter the optical cross-connect device 1 through the first signal transmission component, pass through the first optical splitter component 41, the first MEMS micromirror component 301, the optical shaping component 303 and the second MEMS micromirror component 302, and are output by the second signal transmission component 20 to form a main optical path, so that the main optical path is "W"-shaped.

[0100] The present embodiment does not limit the structure of the optical shaping assembly 303. In some embodiments, the optical shaping assembly 303 includes a concave mirror. The optical shaping assembly 303 can reflect and modulate the light reflected from the first MEMS micromirror assembly 301 and transmit the light path to the second MEMS micromirror assembly 302.

[0101] In other embodiments, the shaping component may also be in the form of a mirror other than a lens or a concave mirror. This application does not impose any restrictions on the shape, size, scale, or quantity of the shaping component, all of which fall within the scope of protection of this application.

[0102] In this embodiment, the main optical path adopts a W-shaped design, and the optical path is longer. Under the same scale design, the micromirror rotation angle of the optical switching component corresponding to the "W"-shaped optical path is smaller, which is conducive to reducing the difficulty of designing the optical switching component.

[0103] The embodiment of the present application does not limit the structure of the first detection unit component 51 and the path of the detection light path.

[0104] In some embodiments, as shown in FIG. 4 , the first detection unit assembly 51 includes at least: a first optical lens 501 , a first scanning element 601 , a second optical lens 502 and a first detector 701 .

[0105] The first optical lens 501 may be a converging lens, and the first optical lens 501 is used to converge the second multi-path optical signal to the first scanning element 601 .

[0106] In this embodiment, the first optical lens 501, the second optical lens 502, and the first detector 701 are fixedly arranged, and the first scanning element 601 is rotatable. The first scanning element 601 is used to sequentially adjust its angle to reflect the second multi-path optical signal beam by beam to the second optical lens. The second multi-path optical signal can be a multi-path optical signal arranged in an array, each beam comprising at least one optical signal. The second multi-path optical signal can be reflected beam by beam, either beam by beam, row by row, or column by column.

[0107] That is, the first scanning element 601 can reflect the detection light of different optical paths along the same optical path. The optical device for receiving the optical signal reflected by the first scanning element 601 only needs to be provided with a number of lenses corresponding to the single return optical path of the scanning element, and the first detector only needs to be provided with a number of ports corresponding to the single return optical path of the scanning element, which can reduce the size of the optical device and the detector.

[0108] Correspondingly, the second optical lens 502 may include a single lens or multiple lenses arranged in an array, and the single lens or multiple lenses arranged in an array correspond one-to-one to the single-path or multi-path optical signals reflected by the first scanning element 601.

[0109] The first detector 701 may be a photo detector (PD). Accordingly, the first detector includes a plurality of detection units arranged in an array, each of which corresponds to the plurality of arranged lenses, and can detect each optical signal reflected by the first scanning component in real time.

[0110] In some embodiments, the first optical lens is used to converge the second multi-channel light signal to the first scanning component, the first scanning component is used to reflect the converged second multi-channel light signal to the second optical lens, and the second optical lens is used to transmit the second multi-channel light signal reflected by the first scanning component to the first detector.

[0111] When the first detection unit component 51 is in working state, it can receive the second multi-path light signal reflected by the first splitting component 41 through the first optical lens 501, and converge the second multi-path light signal to the first scanning component 601. The first scanning component 601 adjusts the angle in sequence to reflect the second multi-path light signal converged by the first optical lens 501 to the second optical lens 502 one by one, and transmits it to the first detector 701 through the second optical lens 502.

[0112] In this way, real-time power detection of the main optical path channel can be achieved.

[0113] In other embodiments, the detection light path can be optically reshaped by reusing the first optical lens 501. For example, the first scanning element 601 is used to sequentially adjust the angle to reflect the second multiple optical signals converged by the first optical lens 501 to the first optical lens 501 one by one. The first optical lens 501 is also used to transmit the second multiple optical signals reflected by the first scanning element 601 to the first detector 701 through the second optical lens 502.

[0114] When the first detection unit component 51 is in working state, the second multi-path light signal reflected by the first spectroscopic component 41 can be received through the first optical lens 501, and the second multi-path light signal can be converged to the first scanning component 601 through the first optical lens 501. The angle of the first scanning component 601 is adjusted in sequence to reflect the second multi-path light signal converged by the first optical lens 501 to the first optical lens 501 one by one. The second multi-path light signal reflected by the first scanning component 601 is transmitted to the first detector 701 through the first optical lens 501 through the second optical lens 502.

[0115] In this way, the detection light path can pass through the first optical lens 501 multiple times for optical shaping, thereby realizing the multiplexing of the first optical lens 501, reducing the number of lenses, and facilitating reducing the size of the system.

[0116] In other embodiments, as shown in FIG. 5 , the first detection unit assembly 51 includes: a first optical lens 501 , a first scanning element 601 , a second optical lens 502 , a third optical lens 505 and a first detector 701 .

[0117] The third optical lens 505 and the first optical lens 501 may adopt similar structures and may be used to shape the light path so that the light path can be better transmitted to the first detector 701 .

[0118] The first optical lens 501 is used to converge the second multi-path optical signal to the first scanning element 601, and the first scanning element 601 is used to reflect the converged second multi-path optical signal to the third optical lens 505. The third optical lens 505 is used to transmit the second multi-path optical signal reflected by the first scanning element 601 to the first detector 701 through the second optical lens 502.

[0119] When the first detection unit component 51 is in working state, the second multi-path light signal reflected by the first spectroscopic component 41 can be received through the first optical lens 501, and the second multi-path light signal can be converged to the first scanning component 601 through the first optical lens 501. The angle of the first scanning component 601 is adjusted in sequence to reflect the second multi-path light signal converged by the first optical lens 501 to the third optical lens 505 one by one. The second multi-path light signal reflected by the first scanning component 601 is transmitted to the second optical lens 502 through the third optical lens 505, and then transmitted to the first detector 701 through the second optical lens 502.

[0120] In this way, the optical path of the first detection unit component and the main optical path can be separated by the first spectroscopic component. The optical path of the first detection unit component and the main optical path do not cross each other, thereby decoupling the optical path of the first detection unit component 51 from the main optical path. Interference between the optical path of the first detection unit component 51 and the main optical path can be avoided, and the assembly tolerance of each component in the signal transmission component, spectroscopic component, and detection unit component in the system is increased, thereby improving the reliability of the system assembly.

[0121] In other embodiments, as shown in FIG6 , the first detection unit assembly 51 includes a first optical lens 501, a first scanning element 601, a second optical lens 502, and a first detector 701. In this embodiment, the first signal transmission assembly 10 includes a first region and a second region. The first region is provided with a first array lens, which is used to connect to the optical fiber array unit, and the second optical lens 502 is provided in the second region. The first signal transmission assembly 10 is used to input the multi-path optical signals through the first array lens.

[0122] That is, the first signal transmission component includes a fiber array unit (FAU), which is connected to the lens array and can divide the lens array into areas, the first area corresponding to the main transmission light path, and the second area corresponding to the first detection light path.

[0123] The first optical lens 501 is used to converge the second multi-path optical signal reflected by the first spectroscopic component 41 to the first scanning component 601. The first scanning component 601 is also used to reflect the converged second multi-path optical signal to the first optical lens 501. The first optical lens 501 is also used to transmit the second multi-path optical signal reflected by the first scanning component 601 to the first spectroscopic component 41. The first spectroscopic component 41 is also used to reflect the second multi-path optical signal transmitted by the first optical lens 501 to the second optical lens 502, and transmit it to the first detector 701 through the second optical lens 502.

[0124] When the first detection unit component 51 is in working state, the second multi-path light signal reflected by the first spectroscopic component 41 can be received through the first optical lens 501, and the second multi-path light signal can be converged to the first scanning component 601 through the first optical lens 501. The angle of the first scanning component 601 is adjusted in sequence to reflect the second multi-path light signal converged by the first optical lens 501 to the first optical lens 501 one by one, and the second multi-path light signal reflected by the first scanning component 601 is transmitted to the first spectroscopic component 41 through the first optical lens 501. The second multi-path light signal transmitted by the first optical lens 501 is reflected to the second optical lens 502 through the first spectroscopic component 41, and is transmitted to the first detector 701 through the second optical lens 502.

[0125] In this way, the first detection unit component 51 can reuse the first optical lens 501, the first splitter component 41 and the first signal transmission component 10, and the optical path of the first detection unit component 51 can reuse part of the main optical path, which is beneficial to reducing the system size.

[0126] The embodiment of the present application does not limit the structure of the first light splitting component 41. In some embodiments, the first light splitting component 41 may adopt a transflective light splitter 41a as shown in Figures 4, 5, and 6.

[0127] In other embodiments, the first light splitting component 41 may also be a light splitting prism 41 b as shown in FIG. 7 .

[0128] Alternatively, as shown in FIG8 , the first light splitting component 41 may adopt a light splitting structure 41 c having an X-shaped cross-section.

[0129] Thus, the first optical splitter component can divide the optical path into a main optical path and a detection optical path, and detect the detection optical path without affecting the transmission of the main optical path.

[0130] In some embodiments, as shown in Figure 6, the optical path of the first detection component needs to be reflected by the first splitting component 41. In this case, the first splitting component 41 includes: a first splitting surface 411 and a second splitting surface 412. The first splitting surface 411 is used to split the multi-path optical signal emitted by the first signal transmission component into a first multi-path optical signal and a second multi-path optical signal. The second splitting surface 412 is used to reflect the second multi-path optical signal transmitted by the first optical lens 501 to the second optical lens 502.

[0131] In some embodiments, the second light-splitting surface 412 may also be a reflective surface.

[0132] The embodiment of the present application does not impose any restrictions on the positional relationship between the first beam splitting surface 411 and the second beam splitting surface 412. The two can be connected together or can be two separate devices. The relative positions of the first beam splitting surface 411 and the second beam splitting surface 412 can be adjusted according to the position of the first detection component. It is only necessary to enable the first beam splitting surface 411 to split the multi-path optical signal emitted by the first signal transmission component into a first multi-path optical signal and a second multi-path optical signal, and to enable the second beam splitting surface 412 to reflect the second multi-path optical signal transmitted by the first optical lens 501 to the second optical lens 502.

[0133] In some embodiments, the first light splitting surface 411 and the second light splitting surface 412 are parallel. For example, the first light splitting surface 411 and the second light splitting surface 412 are located in the same plane.

[0134] In the above embodiment, a first optical splitter component 41 is provided in the optical path between the first signal transmission component 10 and the optical switching component to separate a first optical path to be detected from the main optical path, and a first detection unit component 51 is provided to detect the first optical path to be detected.

[0135] In other embodiments, a second splitter component can be set between the optical switching component and the second signal transmission component 20 to separate a second optical path to be detected from the main optical path. A second detection unit component can also be set to detect the second optical path to be detected through the second detection unit component.

[0136] Alternatively, as shown in Figures 9 and 10, a first optical splitter component 41 can be provided in the optical path between the first signal transmission component 10 and the optical switching component to separate a first optical path to be detected from the main optical path, and a first detection unit component 51 can be provided to detect the first optical path to be detected by the first detection unit component 51. A second optical splitter component 42 can be provided between the optical switching component and the second signal transmission component 20 to separate a second optical path to be detected from the main optical path, and a second detection unit component can be provided to detect the second optical path to be detected by the second detection unit component.

[0137] The following description will be made using the “W”-shaped optical path shown in FIG10 as an example.

[0138] As shown in FIG10 , the optical cross-connect device 1 further includes a second optical splitter assembly 42 and a second detection unit assembly 52. ​​The second optical splitter assembly 42 is configured to split the first multi-path optical signal deflected by the optical switching assembly 30 into a third multi-path optical signal and a fourth multi-path optical signal, transmit the third multi-path optical signal to the second signal transmission assembly, and reflect the fourth multi-path optical signal to the second detection unit assembly 52.

[0139] The optical path where the fourth multi-path optical signal is located is the second optical path to be detected. The optical path where the third multi-path optical signal is located is the main optical path after the splitting.

[0140] The structure of the first detection unit assembly 51 can refer to the above embodiment. The embodiment of the present application does not limit the structure of the second detection unit assembly 52 and the path of the detection light path.

[0141] In some embodiments, the second detection unit assembly 52 includes: a second scanning element 602 and a second detector 702 .

[0142] The second scanning element 602 is used to adjust the angle in sequence to reflect the fourth multi-path light signal to the second detector 702 one by one.

[0143] In this embodiment, the second scanning element 602 is rotatable and is used to sequentially adjust its angle to reflect the second optical path to be detected one by one to the second detector 702. The second optical path to be detected may be a plurality of optical signals arranged in an array, each beam comprising at least one optical signal. The fourth plurality of optical signals are reflected beam by beam, which may be performed by reflecting the second optical paths to be detected arranged in an array one by one, reflecting the second optical paths to be detected arranged in an array one by one, reflecting the second optical paths to be detected arranged in an array one by one, or reflecting the second optical paths to be detected arranged in an array one by one, or reflecting the second optical paths to be detected arranged in an array one by one.

[0144] That is, the second scanner 602 can reflect the detection light of different optical paths into the same optical path, so the second detector 702 only needs to be provided with a number of ports corresponding to the single return optical path of the second scanner, which can reduce the size of the second detector 702.

[0145] Correspondingly, the second detector 702 includes a plurality of detection units arranged in an array, which correspond one-to-one to the single or multiple optical signals reflected by the second scanning piece 602 and can detect each optical signal reflected by the first scanning piece in real time.

[0146] In some embodiments, as shown in FIG. 11 , the second detection unit assembly 52 includes: a third optical lens 503 , a second scanning element 602 , a fifth optical lens 504 and a second detector 702 .

[0147] The structure of the third optical lens 503 may refer to the description of the first optical lens 501. The structure of the fifth optical lens 504 may refer to the description of the second optical lens 502.

[0148] The second scanning element 602 is used to adjust the angle in sequence to reflect the fourth multi-path light signals to the fifth optical lens 504 one by one.

[0149] In this embodiment, the third optical lens 503, the fifth optical lens 504, and the second detector 702 are fixedly arranged, and the second scanning element 602 is rotatable. The second scanning element 602 is used to sequentially adjust its angle to reflect the fourth multi-channel optical signal beam by beam to the second optical lens. The fourth multi-channel optical signal may be a multi-channel optical signal arranged in an array, with each beam comprising at least one optical signal. The beam-by-beam reflection of the fourth multi-channel optical signal may be performed beam by beam, row by row, or column by column.

[0150] That is, the second scanning component 602 can reflect the detection light of different optical paths into the same optical path, so the second detector only needs to be provided with a number of ports corresponding to the single return optical path of the second scanning component, which can reduce the size of the second detector.

[0151] Correspondingly, the fifth optical lens 504 may include a single lens or multiple lenses arranged in an array, and the single lens or multiple lenses arranged in an array correspond one-to-one to the single-path or multi-path optical signals reflected by the second scanning component 602.

[0152] Correspondingly, the second detector 702 includes a plurality of detection units arranged in an array. The plurality of detection units correspond one-to-one to the plurality of lenses arranged in an array, and can detect each optical signal reflected by the second scanning component in real time.

[0153] The third optical lens 503 is used to converge the fourth multi-path optical signal reflected by the second splitting component 42 to the second scanning element 602, and the second scanning element 602 is used to reflect the converged fourth multi-path optical signal to the fifth optical lens 504, and the fifth optical lens 504 is used to transmit the fourth multi-path optical signal reflected by the second scanning element 602 to the second detector 702.

[0154] In which, the second scanning part 602 reflects the fourth multi-path light signal after convergence to the fifth optical lens 504, including: the second scanning part 602 reflects the fourth multi-path light signal after convergence to the third optical lens 503, and the third optical lens 503 is also used to transmit the fourth multi-path light signal reflected by the second scanning part 602 to the fifth optical lens 504.

[0155] When the second detection unit component 52 is in working state, the fourth multi-path light signal reflected by the second splitting component 42 can be received through the third optical lens 503, and the fourth multi-path light signal can be converged to the second scanning component 602 through the third optical lens 503. The angle of the second scanning component 602 is adjusted in sequence to reflect the fourth multi-path light signal converged by the third optical lens 503 to the third optical lens 503 one by one. The fourth multi-path light signal reflected by the second scanning component 602 is transmitted to the second detector 702 through the fifth optical lens 504 through the third optical lens 503.

[0156] In this way, the detection optical path can reuse the third optical lens 503, which is beneficial to reducing the system size.

[0157] In other embodiments, as shown in FIG. 12 , the second detection unit assembly 52 includes: a third optical lens 503 , a second scanning element 602 , a fifth optical lens 504 , a sixth optical lens 506 and a second detector 702 .

[0158] In which, the third optical lens 503 is used to converge the fourth multi-path optical signal reflected by the second splitting component 42 to the second scanning component 602, the second scanning component 602 is used to reflect the converged fourth multi-path optical signal to the sixth optical lens 506, and the sixth optical lens 506 is used to transmit the fourth multi-path optical signal reflected by the second scanning component 602 to the first detector 701 through the fifth optical lens 504.

[0159] When the second detection unit component 52 is in working state, the fourth multi-path light signal reflected by the second splitting component 42 can be received through the third optical lens 503, and the fourth multi-path light signal can be converged to the second scanning component 602 through the third optical lens 503. The angle of the second scanning component 602 is adjusted in sequence to reflect the fourth multi-path light signal converged by the third optical lens 503 to the sixth optical lens 506 one by one. The fourth multi-path light signal reflected by the second scanning component 602 is transmitted to the second detector 702 through the fifth optical lens 504 through the sixth optical lens 506.

[0160] In this way, the optical path of the second detection unit component 52 can be decoupled from the main optical path to avoid interference between the optical path of the second detection unit component 52 and the main optical path, thereby increasing the assembly tolerance of each component in the signal transmission component, splitter component, and detection unit component in the system, and improving the reliability of the system assembly.

[0161] The present embodiment does not limit the structure of the second light splitting component 42. In some embodiments, the second light splitting component 42 does not need to reflect the optical signal of the detection optical path, and can use a transflective light splitter 42a as shown in Figures 11 and 12. Alternatively, a light splitting prism or an X-shaped light splitting component can also be used.

[0162] In this embodiment, the structure of the second light splitting component 42 may refer to the description of the first light splitting component 41 , and will not be repeated here.

[0163] Thus, the second optical splitter component can split the optical path into a main optical path and a detection optical path, thereby realizing detection of the detection optical path without affecting transmission of the main optical path.

[0164] In other embodiments, as shown in FIG13 , the second detection unit assembly 52 includes a third optical lens 503, a second scanning element 602, a fifth optical lens 504, and a second detector 702. In this embodiment, the second signal transmission assembly 20 includes a third region and a fourth region, the third region being provided with a second array lens, and the fifth optical lens 504 being provided in the fourth region. The second signal transmission assembly 20 is configured to output the multiple optical signals through the second array lens.

[0165] The second scanning element 602 is also used to reflect the converged fourth multi-path optical signal to the third optical lens 503. The third optical lens 503 is also used to transmit the fourth multi-path optical signal reflected by the second scanning element 602 to the second spectroscopic component 42. The second spectroscopic component 42 is also used to reflect the fourth multi-path optical signal transmitted by the third optical lens 503 to the fifth optical lens 504, and transmit it to the second detector 702 through the fifth optical lens 504.

[0166] When the second detection unit component 52 is in working state, the fourth multi-path light signal reflected by the second spectroscopic component 42 can be received through the third optical lens 503, and the fourth multi-path light signal can be converged to the second scanning component 602 through the third optical lens 503. The angle of the second scanning component 602 is adjusted in sequence to reflect the fourth multi-path light signal converged by the third optical lens 503 to the third optical lens 503 one by one, and the fourth multi-path light signal reflected by the second scanning component 602 is transmitted to the second spectroscopic component 42 through the third optical lens 503. The fourth multi-path light signal transmitted by the third optical lens 503 is reflected to the fifth optical lens 504 through the second spectroscopic component 42, and is transmitted to the second detector 702 through the fifth optical lens 504.

[0167] In this way, the second detection unit component 52 can reuse the third optical lens 503, the second splitter component 42 and the second signal transmission component 20, and the optical path of the second detection unit component 52 can reuse part of the main optical path, which is beneficial to reducing the system size.

[0168] In some of the above embodiments, the optical path of the second detection component needs to be reflected by the second splitting component 42. In this case, as shown in Figure 17, the second splitting component 42 includes: a third splitting surface 421 and a fourth splitting surface 422. The third splitting surface 421 is used to split the first multi-path optical signal after the deflection of the optical switching component 30 into a third multi-path optical signal and a fourth multi-path optical signal. The fourth splitting surface 422 is used to reflect the fourth multi-path optical signal to the second detector 702.

[0169] In some embodiments, the fourth light-splitting surface 422 may also be a reflective surface.

[0170] The embodiment of the present application does not limit the positional relationship between the third beam splitting surface 421 and the fourth beam splitting surface 422. The angle between the third beam splitting surface 421 and the fourth beam splitting surface 422 can be adjusted according to the position of the second detection component. It is only necessary to enable the third beam splitting surface 421 to split the first multi-path optical signal after the deflection of the optical switching component 30 into a third multi-path optical signal and a fourth multi-path optical signal, and enable the fourth beam splitting surface 422 to reflect the fourth multi-path optical signal to the second detector 702. In some embodiments, the third beam splitting surface 421 and the fourth beam splitting surface 422 are perpendicular. For example, the cross-sectional shapes of the second beam splitting component 42 include: X-type (see 42c in Figure 15), T-type (see Figure 13, 42d in Figure 17, and 42b in Figure 14).

[0171] In some embodiments of the present application, as shown in FIG16 , the optical cross-connect device further includes a light shielding layer 43 having a plurality of light-through holes formed therein. The plurality of light-through holes correspond one-to-one with the first multi-path optical signals deflected by the optical switching assembly. Thus, the light shielding layer can serve as an aperture to prevent crosstalk between adjacent optical paths.

[0172] The light-shielding layer 43 may be an aperture stop. An aperture stop limits the light beam in an optical system and can be used to restrict the beam size. In this embodiment of the present application, the light-shielding layer can be used to block stray light generated when switching channels in the optical switching component, thereby reducing the dynamic crosstalk caused by stray light on the working path.

[0173] The present application does not limit the shape, size, and arrangement of the light-through holes. For example, as shown in FIG18 , the light-shielding layer 43 is provided with a plurality of light-through holes 431 , and the plurality of light-through holes 431 correspond one-to-one to the multiple optical signals.

[0174] As shown in FIG19 , arrow a represents the main light path, arrow b represents the crosstalk light path, and arrow c represents the crosstalk light generated during channel switching. The main light path passes through the light hole 431 , and the crosstalk light is blocked by the light shielding layer 43 .

[0175] The embodiment of the present application does not limit the position of the light shielding layer 43 in the light path.

[0176] In some embodiments, the light shielding layer is disposed between the second light splitting component and the light switching component.

[0177] In other embodiments, the light-shielding layer is disposed between the second light-splitting component and the second signal transmission component.

[0178] In other embodiments, the light-shielding layer is provided on the second light-splitting component. Thus, the space occupied by the light-shielding layer can be further reduced. When preparing the light-shielding layer, the surface of the second light-splitting component can be coated, painted black, or pasted with a sticker, etc. to form a porous light-shielding layer as shown in FIG18 , wherein the light-through hole is used for main light path transmission and also for separating detection light, and the area outside the light-through hole absorbs or reflects light to block stray light generated during the switching process of the MEMS micromirror channel, thereby preventing the stray light from continuing to be transmitted to the output end and reducing the crosstalk generated in the transmission path.

[0179] In other embodiments, the shading layer may also be provided on the surface of the second signal transmission component. The manner of providing the shading layer on the surface of the second signal transmission component may refer to the above description on the second spectroscopic component and will not be repeated here.

[0180] In this embodiment, the light shielding layer is combined with the beam splitter component, that is, the aperture and the beam splitter are used as the same device, which can reduce the number of components in the optical path, simplify the optical path architecture, and save costs.

[0181] The present application also provides a method for detecting a cross optical path, which is applied to an optical cross-connect device 1. The optical cross-connect device 1 includes: a first signal transmission component 10, an optical switching component 30, a first optical splitting component 41, a first detection unit component 51, and a second signal transmission component 20. The method includes:

[0182] Multiple optical signals are input through the first signal transmission component 10 .

[0183] The multi-path optical signal is split into a first multi-path optical signal and a second multi-path optical signal by the first optical splitter component 41 , and the first multi-path optical signal is transmitted to the optical switching component 30 , and the second multi-path optical signal is reflected to the first detection unit component 51 .

[0184] The optical switching component 30 obtains a deflected first multi-path optical signal from the first multi-path optical signal, and reflects the first multi-path optical signal to the second signal transmission component 20 .

[0185] In some embodiments, the optical cross-connect device 1 further includes: a second optical splitting component 42 and a second detection unit component 52; and the cross-optical path detection method further includes:

[0186] The first multi-path optical signal deflected by the optical switching component 30 is split into a third multi-path optical signal and a fourth multi-path optical signal by the second optical splitting component 42 , and the third multi-path optical signal is transmitted to the second signal transmission component, and the fourth multi-path optical signal is reflected to the second detection unit component 52 .

[0187] The embodiment of the present application also provides a MEMS micromirror detection method for a cross optical path, which is applicable to the optical cross-connect device 1 shown in Figure 15. As shown in Figure 15, the optical cross-connect device 1 includes: a first signal transmission component 10, a first MEMS micromirror component 301, a second MEMS micromirror component 302, a first light splitting component (41c), a second light splitting component (42c), a first detection unit component, a second detection unit component, and a second signal transmission component 20.

[0188] The cross-sectional shape of the first light splitting component (41c) and the cross-sectional shape of the second light splitting component (42c) are both X-shaped.

[0189] Referring to the optical path shown in FIG20 , the method includes:

[0190] A first detection light is input through the first signal transmission component 10 .

[0191] The first detection light is transmitted to the first MEMS micromirror component 301 through the first light splitting component (41c), and the first MEMS micromirror component 301 is used to deflect the first detection light to obtain a first multi-path optical signal after deflection.

[0192] The first multi-path optical signal is reflected by the second MEMS micromirror assembly 302 .

[0193] The first multi-path optical signal reflected by the second MEMS micromirror component 302 is divided into a second multi-path optical signal and a third multi-path optical signal by the second optical splitting component (42c), the second multi-path optical signal is transmitted to the second signal transmission component 20, and the third multi-path optical signal is reflected to the second detection unit component.

[0194] Therefore, the optical cross-connect device inputs a detection light signal from a selected channel of the first signal transmission component. The corresponding micromirror on the first MEMS micromirror component is deflected, and the detection light scans the second MEMS micromirror component. The detection light continues to pass through the second detection unit component and the second signal transmission component. The second detector detects the light signal to determine whether each micromirror of the second MEMS micromirror component is working normally.

[0195] Referring to the optical path shown in FIG21 , the method further includes:

[0196] A second detection light is input through the second signal transmission component 20 .

[0197] The second detection light is transmitted to the second MEMS micromirror component 302 through the second light splitting component (42c).

[0198] The second detection light is deflected by the second MEMS micromirror assembly 302 to obtain a fourth multi-path optical signal after deflection.

[0199] The first MEMS micromirror component 301 is used to reflect the fourth multi-path optical signal.

[0200] The fourth multi-path optical signal reflected by the first MEMS micromirror component 301 is divided into a fifth multi-path optical signal and a sixth multi-path optical signal by the first optical splitting component (41c), the fifth multi-path optical signal is transmitted to the first signal transmission component 10, and the sixth multi-path optical signal is reflected to the first detection unit component.

[0201] Therefore, the optical cross-connection device can reversely input a detection light signal from a selected channel of the second signal transmission component, and deflect the corresponding micromirror on the second MEMS micromirror component so that the detection light scans the first MEMS micromirror component. The detection light continues to pass through the first detection unit component and the first signal transmission component, and the first detector detects the light signal to determine whether each micromirror of the first MEMS micromirror component is working normally.

[0202] In this embodiment, both the first and second optical splitter components utilize an X-shaped structure. Based on this, the optical cross-connect device can implement MEMS micromirror health monitoring. This X-shaped optical splitter assembly enables reverse input detection. The detection light for the micromirror does not occupy the main optical path, and the input and output terminals serve as backup channels, allowing independent monitoring.

[0203] Furthermore, the first and second detection beams in this embodiment are independent of the main optical path signal light. Even when the system is not transmitting on the main optical path, the first and second detection beams can be used to monitor the health of the MEMS mirror. Based on this health monitoring, a pre-calibrated parameter table can be used to implement a preset link (dark switch) in the absence of signal light.

[0204] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions 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 device, characterized in that: include: a first signal transmission component, an optical switching component, a first light splitting component, a first scanning component, a first detector, and a second signal transmission component; The first signal transmission component is used to input multiple optical signals, the first splitting component is used to split the multiple optical signals into a first multiple optical signal and a second multiple optical signal, transmit the first multiple optical signal to the optical switching component, and reflect the second multiple optical signal to the first scanning component, the first scanning component is used to adjust the angle in sequence to reflect the second multiple optical signal beam by beam to the first detector, the optical switching component is used to deflect the first multiple optical signal and transmit the deflected first multiple optical signal to the second signal transmission component, wherein each beam of light includes at least one optical signal.

2. The optical cross-connect device according to claim 1, wherein: The optical cross-connect device further comprises: a first optical lens and a second optical lens; The first optical lens is used to converge the second multi-channel light signal to the first scanning component, the first scanning component is used to adjust the angle in sequence to reflect the converged second multi-channel light signal beam by beam to the second optical lens, and the second optical lens is used to transmit the second multi-channel light signal reflected by the first scanning component to the first detector.

3. The optical cross-connect device according to claim 2, wherein: The first scanning component is also used to adjust the angle in sequence to reflect the converged second multi-path light signals one by one to the first optical lens, and the first optical lens is also used to transmit the second multi-path light signals reflected by the first scanning component to the first detector through the second optical lens.

4. The optical cross-connect device according to claim 2, wherein: The first signal transmission component includes: a first area and a second area, the first area is provided with a first array lens, and the second optical lens is provided in the second area; The first signal transmission component is used to input the multi-path optical signal through the first array lens. The first scanning component is also used to adjust the angle in sequence to reflect the converged second multi-path optical signal beam by beam to the first optical lens. The first optical lens is also used to transmit the second multi-path optical signal reflected by the first scanning component to the first spectroscopic component. The first spectroscopic component is also used to reflect the second multi-path optical signal transmitted by the first optical lens to the second optical lens, and transmit it to the first detector through the second optical lens.

5. The optical cross-connect device according to claim 4, characterized in that: The first splitter assembly includes a first splitter surface and a second splitter surface. The first splitter surface is used to split the multi-path optical signal into a first multi-path optical signal and a second multi-path optical signal. The second splitter surface is used to reflect the second multi-path optical signal transmitted by the first optical lens to the first detector.

6. The optical cross-connect device according to claim 5, characterized in that: The first light-splitting surface and the second light-splitting surface are parallel.

7. The optical cross-connect device according to claim 2, characterized in that: The optical cross-connect device further includes: a third optical lens, the first scanning component is further used to reflect the converged second multi-path optical signal to the third optical lens, and the third optical lens is used to transmit the second multi-path optical signal reflected by the first scanning component to the first detector through the second optical lens.

8. The optical cross-connect device according to any one of claims 1 to 7, characterized in that: The first light splitting component includes: a transflective light splitter and a transflective prism.

9. The optical cross-connect device according to any one of claims 1 to 8, characterized in that: The optical cross-connect device further comprises: a second light splitting component, a second scanning component and a second detector; The second optical splitter component is used to split the first multi-path optical signal after deflection by the optical switching component into a third multi-path optical signal and a fourth multi-path optical signal, transmit the third multi-path optical signal to the second signal transmission component, and reflect the fourth multi-path optical signal to the second scanning component. The second scanning component is used to adjust the angle in sequence to reflect the fourth multi-path optical signal beam by beam to the second detector, wherein each beam of light includes at least one optical signal.

10. The optical cross-connect device according to claim 9, characterized in that: The optical cross-connect device further includes: a third optical lens and a fifth optical lens; The third optical lens is used to converge the fourth multi-path optical signal to the second scanning component, the second scanning component is used to adjust the angle in sequence to reflect the converged fourth multi-path optical signal beam by beam to the fifth optical lens, and the fifth optical lens is used to transmit the fourth multi-path optical signal reflected by the second scanning component to the second detector.

11. The optical cross-connect device according to claim 10, characterized in that: The second scanning component is also used to adjust the angle in sequence to reflect the converged fourth multi-path light signal beam by beam to the third optical lens, and the third optical lens is also used to transmit the fourth multi-path light signal reflected by the second scanning component to the first detector through the fifth optical lens.

12. The optical cross-connect device according to claim 11, characterized in that: The optical cross-connection device also includes: a sixth optical lens, and the second scanning component is also used to adjust the angle in sequence to reflect the converged fourth multi-path optical signals beam by beam to the sixth optical lens, and the sixth optical lens is used to transmit the fourth multi-path optical signals reflected by the second scanning component to the second detector through the fifth optical lens.

13. The optical cross-connect device according to any one of claims 10 to 12, characterized in that: The second light splitting component includes: a transflective light splitter and a transflective prism.

14. The optical cross-connect device according to claim 11, wherein: The second signal transmission component includes: a third area and a fourth area, the third area is provided with a second array lens, and the fifth optical lens is provided in the fourth area; The second signal transmission component is used to output the multi-path optical signal through the second array lens, the second scanning component is also used to reflect the converged fourth multi-path optical signal to the third optical lens, the third optical lens is also used to transmit the fourth multi-path optical signal reflected by the second scanning component to the second spectroscopic component, the second spectroscopic component is also used to reflect the fourth multi-path optical signal transmitted by the third optical lens to the fifth optical lens, and transmit it to the second detector through the fifth optical lens.

15. The optical cross-connect device according to claim 14, characterized in that: The second splitting component includes: a third splitting surface and a fourth splitting surface. The third splitting surface is used to split the first multi-path optical signal after deflection by the optical switching component into a third multi-path optical signal and a fourth multi-path optical signal. The fourth splitting surface is used to reflect the fourth multi-path optical signal to the second detector.

16. The optical cross-connect device according to claim 15, characterized in that: The first light-splitting surface is perpendicular to the second light-splitting surface.

17. The optical cross-connect device according to claim 15 or 16, characterized in that: The cross-sectional shapes of the second light splitting component include: X-shaped and T-shaped.

18. The optical cross-connect device according to any one of claims 10 to 17, characterized in that: The optical cross-connect device further includes a light shielding layer, on which a plurality of light-through holes are provided. The plurality of light-through holes correspond one-to-one to the first multi-path optical signals deflected by the optical switching assembly.

19. The optical cross-connect device according to claim 18, characterized in that: The light shielding layer is arranged on the second light splitting component.

20. The optical cross-connect device according to any one of claims 1 to 19, characterized in that: The optical switching component includes: a first MEMS micromirror component and a second MEMS micromirror component, the first MEMS micromirror component is used to deflect the received first multi-path optical signal to obtain the deflected first multi-path optical signal, and the second MEMS micromirror component is used to reflect the first multi-path optical signal deflected by the first MEMS micromirror component to the second splitting component.

21. The optical cross-connect device according to claim 20, characterized in that: The optical switching component also includes: an optical shaping component, which is arranged between the first MEMS micromirror component and the second MEMS micromirror component, the first MEMS micromirror component is used to reflect the received first multi-path optical signal to the optical shaping component, and the optical shaping component is used to reflect the first multi-path optical signal reflected by the first MEMS micromirror component to the output MEMS mirror.

22. A communication system, characterized in that: The communication system comprises at least the optical cross-connect device according to any one of claims 1 to 21.

Images