Matrix optical switch, control system, full-wavelength optical switching system and communication equipment

Abstract

The invention discloses a matrix optical switch, a control system, a full-wavelength optical switching system and communication equipment, and relates to the technical field of optical communication. A light beam enters from the input end of the first collimator array and is output from the second collimator array, and the number of the input ports of the first collimator array is smaller than the sum of the number of the output ports of all the second collimator arrays, so that the asymmetric port requirement of the optical switching system for less input and more output is met; moreover, the light beam deflection module comprises a plurality of groups of light deflection devices, and the light deflection surfaces of the plurality of groups of light deflection devices are in one-to-one correspondence with the receiving modules. A plurality of groups of light beams respectively correspond to one light deflection surface and receiving module output, namely, the plurality of groups of light beams adopt a parallel output relation, so that cascade insertion loss is avoided, and the transmission quality of optical signals is effectively guaranteed; besides, fault flow can be switched through port grouping and inter-group redundant channels by means of grouping fault-tolerant redundancy design, a fault-tolerant mechanism is constructed, and reliability is improved.

Description

Technical Field

[0001] This invention relates to the field of optical communication technology, and in particular to a matrix optical switch, a control system, a full-wavelength optical switching system, and communication equipment. Background Technology

[0002] With the explosive growth of cloud computing and big data services, the demands for bandwidth capacity, port scheduling flexibility, and operational reliability of full-wavelength optical switching systems in core optical communication scenarios such as data centers and backbone optical transport networks continue to rise. The core architecture of a full-wavelength optical switching system consists of a wavelength selective switch (WSS) and a matrix optical switch. The WSS is responsible for wavelength selection and splitting of multiplexed optical signals, while the matrix optical switch performs space-division switching. Together, they achieve efficient scheduling of full-wavelength signals. In actual deployments, there is a need for asymmetrical ports, such as fewer input ports and more output ports on the service side. To increase the number of output ports, related technologies integrate multiple output ports into a single WSS. However, the number of ports in a single WSS is limited to only a few to dozens due to integration technology and cost constraints, resulting in insufficient scalability and an inability to meet large-scale output demands. Furthermore, existing matrix optical switches typically use symmetrical ports, meaning the number of input ports is the same as the number of output ports, which cannot adapt to this asymmetrical port requirement.

[0003] To meet this requirement, a cascaded asymmetric port matrix optical switch is further proposed. Multiple symmetric matrix optical switches (such as M×M or K×K models, where M and K represent the number of ports) are cascaded to construct an M-input, K×M-output architecture. Although it supports dynamic switching to adapt to all wavelength scenarios, cascading will result in multiple stages of insertion loss, causing the signal-to-noise ratio of the far-end port to be substandard. Furthermore, if one stage fails, it will directly block the signal of the entire optical path, causing the entire communication to be interrupted.

[0004] Therefore, when adapting to the asymmetric port requirements of optical switching systems with "few inputs and many outputs," how to avoid cascading insertion loss, effectively ensure the quality of optical signal transmission, and improve system reliability are technical problems that urgently need to be solved by those in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a matrix optical switch, a control system, a full-wavelength optical switching system, and a communication device to solve the technical problems of cascading insertion loss, resulting in substandard signal-to-noise ratio at the remote port, and the direct blocking of the entire optical path signal if one stage fails, leading to communication interruption, low optical signal transmission quality, and low reliability when adapting to the asymmetric port requirements of "few inputs and many outputs" in optical switching systems.

[0006] To address the aforementioned technical problems, this invention provides a matrix optical switch, comprising: a first collimator array, a first optical modulator, a beam deflection module, and multiple sets of receiving modules; the beam deflection module includes multiple sets of optical deflection devices, with each set of optical deflection devices having a one-to-one correspondence with a receiving module; the receiving module includes a second optical modulator and a second collimator array; the number of input ports of the first collimator array is less than the sum of the number of output ports of all the second collimator arrays;

[0007] The input end of the first collimator array is used to receive the light beam;

[0008] The first optical modulator is used to receive multiple parallel beams output from the first collimator array and modulate the parallel beams to change the beam exit angle and form multiple beams.

[0009] Each of the optical deflection devices has an optical deflection surface that is used to receive a set of light beams and to deflect the light beams so that the light beams are incident on the second optical modulator in the target receiving module; wherein, the target receiving module is a receiving module corresponding to the optical deflection surface of the optical deflection device;

[0010] The second optical modulator is used to modulate the light beam after passing through the optical deflection device to change the exit angle of the light beam;

[0011] The second collimator array is used to receive the light beam emitted from the second optical modulator and collimate the light beam before outputting it.

[0012] For example, the first optical modulator and the second optical modulator are reflective optical modulators and / or transmissive optical modulators.

[0013] For example, the light deflection device is a mirror or a prism.

[0014] For example, the receiving module further includes a transformation mirror group located between the second optical modulator and the second collimator array, for transforming the beam position and beam waist size.

[0015] For example, the transformation mirror group includes at least a first mirror group and a second mirror group, which are arranged sequentially along the transmission direction of the light beam emitted from the second optical modulator;

[0016] The first mirror group is used to perform beam waist size transformation on the beam emitted from the second optical modulator;

[0017] The effective aperture of the second mirror group is larger than the spot diameter of the beam after transformation by the first mirror group, and the translation of the second mirror group along the direction perpendicular to the beam transmission is less than the difference between its effective aperture and the spot diameter, which is used to adjust the propagation position of the beam.

[0018] For example, it also includes an output module, which is a module that integrates an optical deflection device and a receiving module into one unit;

[0019] The output module is located in the transmission direction of a set of light beams.

[0020] To address the aforementioned technical problems, the present invention also provides a matrix optical switch control system, comprising the aforementioned matrix optical switch and a control module;

[0021] The control module is connected to each modulator in the matrix optical switch and is used to provide modulation signals to each modulator.

[0022] For example, the control module is further configured to:

[0023] When an output module is detected to be added to the matrix optical switch, the number of new ports is determined according to the number of output ports of the output module, and the modulation signal of each modulator is configured based on the number of new ports.

[0024] To address the aforementioned technical problems, the present invention also provides a full-wavelength optical switching system, including a wavelength selective switch and the aforementioned matrix optical switch;

[0025] The output of the wavelength selective switch is connected to the input of the first collimator array in the matrix optical switch.

[0026] To address the aforementioned technical problems, the present invention also provides a communication device, including the aforementioned full-wavelength optical switching system.

[0027] The matrix optical switch provided by this invention includes a first collimator array, a first optical modulator, a beam deflection module, and multiple sets of receiving modules. Each receiving module includes a second optical modulator and a second collimator array. The light beam enters from the input end of the first collimator array and exits from the second collimator array. The number of input ports of the first collimator array is less than the sum of the number of output ports of all the second collimator arrays, thus fulfilling the asymmetric port requirement of "few inputs, many outputs" in the optical switching system. Furthermore, the beam deflection module includes multiple sets of optical deflection devices, with each set of devices corresponding to a receiving module. The first optical modulator receives multiple parallel light beams output from the first collimator array and modulates them to change the beam exit angle, forming multiple sets of beams. Each optical deflection device's deflection surface is used to receive one set of beams and deflect them so that they are incident on the target receiving module. In other words, multiple beams correspond to a single optical deflection surface and a receiving module output, meaning the multiple beams are output in parallel without cascading. This eliminates the need to connect a next-level structure at the output port of the receiving module, achieving asymmetric port expansion and avoiding cascading insertion loss, effectively ensuring the quality of optical signal transmission. Furthermore, if one set of receiving modules fails, the beam exit angle can be adjusted to allow the beam to output from another receiving module. This grouped fault-tolerant redundancy design utilizes port grouping and inter-group redundant channels to switch fault traffic, building a fault-tolerant mechanism and improving reliability.

[0028] In addition, the present invention also provides a matrix optical switch control system, a full-wavelength optical switching system, and a communication device, which have the same or corresponding technical features as the matrix optical switch mentioned above, and have the same effects. Attached Figure Description

[0029] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of a matrix optical switch provided in an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of an asymmetric port non-cascaded reconfigurable matrix optical switch architecture provided in an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of another asymmetric port non-cascaded reconfigurable matrix optical switch architecture provided in an embodiment of the present invention;

[0033] Figure 4This is a schematic diagram of a matrix optical switch control system provided in an embodiment of the present invention.

[0034] The attached figures are labeled as follows:

[0035] 1-First collimator array; 2-First optical modulator; 3-Beam deflection module; 4-Receiver module; 31-First optical deflection device; 32-Second optical deflection device; 33-Third optical deflection device; 34-Fourth optical deflection device; 35-Fifth optical deflection device; 41-Second optical modulator; 42-Second collimator array; 43-Transformer mirror group; 100-Matrix optical switch; 200-Control module. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present invention.

[0037] The core of this invention is to provide a matrix optical switch, a control system, a full-wavelength optical switching system, and a communication device to solve the technical problems of cascading insertion loss, resulting in substandard signal-to-noise ratio at the remote port, and the direct blocking of the entire optical path signal if one stage fails, leading to communication interruption, low optical signal transmission quality, and low reliability when adapting to the asymmetric port requirements of "few inputs and many outputs" in optical switching systems.

[0038] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Figure 1 A schematic diagram of a matrix optical switch provided in an embodiment of the present invention is shown below. Figure 1 As shown, it includes: a first collimator array 1, a first optical modulator 2, a beam deflection module 3, and multiple sets of receiving modules 4; the beam deflection module 3 includes multiple sets of optical deflection devices, and the optical deflection surfaces of the multiple sets of optical deflection devices correspond one-to-one with the receiving modules 4; the receiving modules 4 include a second optical modulator 41 and a second collimator array 42; the number of input ports of the first collimator array 1 is less than the sum of the number of output ports of all the second collimator arrays 42;

[0039] The input terminal of the first collimator array 1 is used to receive the light beam;

[0040] The first optical modulator 2 is used to receive multiple parallel beams output from the first collimator array 1 and modulate the parallel beams to change the beam exit angle and form multiple beams.

[0041] Each optical deflection device has an optical deflection surface that is used to receive a set of light beams and to deflect the light beams so that the light beams are incident on the second optical modulator 41 in the target receiving module 4; wherein, the target receiving module 4 is the receiving module 4 corresponding to the optical deflection surface of the optical deflection device.

[0042] The second optical modulator 41 is used to modulate the beam after passing through the optical deflection device to change the beam exit angle.

[0043] The second collimator array 42 is used to receive the light beam emitted from the second optical modulator 41 and output the collimated light beam.

[0044] The number of collimators in the collimator array (first collimator array 1 or second collimator array 42) is not limited and is determined according to the actual situation. Each collimator in the collimator array utilizes the focusing and refraction characteristics of the lens to ensure that the received light beam, after being incident on the collimating lens, propagates in a direction parallel to the optical axis after being refracted by the lens, thereby calibrating the incident light beam into a parallel beam and achieving collimated output of the light beam.

[0045] The input of the first collimator array 1 is used to receive the light beam. In the optical switching system, the light beam received at the input of the first collimator array 1 comes from a wavelength selective switch.

[0046] The multiple parallel beams output from the first collimator array 1 enter the first optical modulator 2. The first optical modulator 2 uses electronic control to change the refractive index, phase, or propagation characteristics of its internal optical medium, thereby regulating the propagation direction of the incident beam and changing its exit angle. Specifically, under the action of an electrical signal applied by the control module, the optical structure inside the modulator produces corresponding changes in refractive index or deflection effects, causing the beam to undergo controllable refraction or diffraction when passing through the modulation region, thus changing the beam's exit angle.

[0047] In one possible implementation, the first optical modulator 2 is either a reflective optical modulator or a transmissive optical modulator. The reflective optical modulator, through an electrical signal applied by a control module, alters the refractive index, reflectivity, or phase modulation characteristics of the device's reflective surface or internal optical layer. When an incident light beam strikes the modulator surface, it is reflected and output, achieving beam angle modulation during the reflection process. The reflective optical modulator allows for a compact optical structure and a foldable optical path arrangement, effectively shortening the system's axial dimension.

[0048] Transmissive optical modulators operate by allowing light beams to penetrate the device body. The incident light beam enters from one side of the device, and as it passes through the internal modulation region, it undergoes a change in refractive index or phase modulation under the control of an electrical signal, and is then directly transmitted and output from the other side, thereby achieving the control of the beam's exit angle or intensity.

[0049] To form multiple beams, the optical modulator used in this invention is an array-type optical modulator, which integrates multiple independently arranged modulation units. Each modulation unit is electrically connected to and driven independently by the control module. The control module outputs corresponding modulation signals to different modulation units, enabling each modulation unit to individually modulate the angle of the incident light or control its on / off state, thereby outputting multiple independent beams with individually adjustable exit angles from the optical modulator.

[0050] That is, the first optical modulator 2 receives multiple parallel beams output from the first collimator array 1 and modulates the parallel beams, thereby changing the beam exit angle and forming multiple beams. In order to avoid insertion loss caused by using a cascaded architecture, in this invention, an optical deflection surface and a receiving module 4 are respectively set in the transmission direction of each beam to form a parallel output optical path.

[0051] Specifically, a beam deflection module 3 is disposed after the first optical modulator 2. The beam deflection module 3 includes multiple sets of optical deflection devices. The optical deflection surfaces of the optical deflection devices redirect the beam. In one possible implementation, the optical deflection devices are mirrors or prisms. When the optical deflection device is a mirror, the optical deflection surface is the reflecting surface of the mirror; when the optical deflection device is a prism, the optical deflection surface is the optical surface of the prism, that is, a prism can have multiple optical deflection surfaces. For example, a beam deflection module 3 can simultaneously include both mirrors and prisms.

[0052] Each of the multiple optical deflection devices has a one-to-one correspondence with the receiving module 4, meaning that the light beam after passing through any optical deflection surface can be transmitted to the corresponding receiving module 4. The receiving module 4 includes a second optical modulator 41 and a second collimator array 42.

[0053] Each optical deflection device has an optical deflection surface used to receive a set of light beams and redirect them. The light beams emitted from each optical deflection surface are incident on the second optical modulator 41 in the corresponding target receiving module 4. The second optical modulator 41 can also be a reflective or transmissive optical modulator. The second optical modulator 41 modulates the light beam after passing through the optical deflection device, changing the beam's exit angle. The second collimator array 42 receives the light beam emitted from the second optical modulator 41, collimates the beam, and outputs it. The beam angle is changed by the second optical modulator 41, and the beam is collimated by the second collimator array 42, ensuring that the beam enters the optical fiber parallel to the ground after passing through the second collimator array 42.

[0054] To match the beam size entering the second collimator array 42 with the receiving surface size of the second collimator array 42, in one possible embodiment, the receiving module 4 further includes a transformation mirror group 43. The transformation mirror group 43 is located between the second optical modulator 41 and the second collimator array 42 and is used to transform the beam position and beam waist size. The transformation mirror group 43 includes at least a first mirror group and a second mirror group, which are sequentially arranged along the propagation direction of the beam emitted from the second optical modulator 41. The first mirror group is used to transform the beam waist size of the beam emitted from the second optical modulator 41; the effective aperture of the second mirror group is larger than the beam diameter after transformation by the first mirror group, and the translation of the second mirror group along the direction perpendicular to the beam propagation is less than the difference between its effective aperture and the beam diameter, used to adjust the propagation position of the beam. The effective aperture of the second mirror group is larger than the spot diameter of the beam after transformation by the first mirror group. Its translation along the direction perpendicular to the beam transmission direction is less than the difference between its effective aperture and the spot diameter, thus avoiding the situation where the beam is blocked or energy is lost when adjusting the propagation position of the beam.

[0055] To achieve scalability in the number of ports, in one possible implementation, the matrix optical switch also includes an output module, which is a module integrating an optical deflection device and a receiving module 4; the output module is located in the transmission direction of a set of beams. This realizes a modular splicing flexible expansion design with reconfigurable output port count, allowing the number of output ports of the matrix optical switch to be increased or decreased in real time as needed in the optical switching link. It is worth noting that when adding or removing output modules from the matrix optical switch, software control and reconfiguration can be performed simultaneously in the relevant control program to synchronize the change in the number of available communication output ports.

[0056] The matrix optical switch has been described above. To enable those skilled in the art to better understand the matrix optical switch described above, the following description will continue with reference to the accompanying drawings and specific embodiments. Figure 2 This is a schematic diagram of an asymmetric port, non-cascaded, reconfigurable matrix optical switch architecture provided in an embodiment of the present invention. The input port is the WSS side. The optical signal is incident on the first optical modulator 2 via the first collimator array 1. The first optical modulator 2 can be any modulator that can control the exit angle of the light beam, including but not limited to liquid crystal or chip-type optical modulators. After the optical signal is modulated as needed by the first optical modulator 2, the exit angle is changed, and it is incident on the beam deflection module 3 as needed. The beam deflection module 3 can be composed of transmission or refraction and reflection devices at various angles, including but not limited to transmission or reflection prisms, mirrors, periscopes, refracting prisms, etc. Figure 2In the beam deflection module 3 shown, the first optical deflector 31 is a transmission prism, the second optical deflector 32 and the third optical deflector 33 are reflection prisms, and the fourth optical deflector 34 and the fifth optical deflector 35 are reflectors. The optical signal, after passing through the beam deflection module 3, is incident on the corresponding target receiving module 4. Figure 2 It has five receiving modules 4, namely 1#, 2#, 3#, 4#, and 5#. Each receiving module 4 includes a second optical modulator 41, a conversion mirror group 43, and a second receiving collimator array.

[0057] The optical path structure is described below using receiver module 4 (numbered 2#) as an example. The optical signal is modulated by the first optical modulator 2, and its exit angle is changed before it enters the surface of the second optical deflector 32 in the beam deflection module 3. After passing through the second optical deflector 32, it enters the second optical modulator 41 in receiver module 4 (numbered 2#). The second optical modulator 41 modulates the signal as needed, changing its exit angle, and then it enters the conversion mirror group 43. The conversion mirror group 43 changes the beam position and beam waist size before the optical signal enters the second collimator array 42. It is worth noting that the conversion mirror group 43 is not a necessary component. If the beam exiting the second optical modulator 41 does not require a change in position or beam waist size before reaching the second collimator array 42, the conversion mirror group 43 can be omitted. The optical paths of the other receiver modules 4 are similar to the above.

[0058] Optical path switching principle: The switching of the matrix optical switch ports is mainly achieved by adjusting the beam output angle through the optical modulator. Different output angles correspond to different target output ports.

[0059] Non-cascading principle: The reconfigurable port expansion method proposed in this invention is fundamentally different from the existing cascading port expansion. The output modules of this invention are in parallel relationship and have no cascading relationship. There is no need to connect the next level structure at the existing output port, thus realizing asymmetric port expansion and avoiding cascading insertion loss.

[0060] Reconfigurability principle: Figure 2The diagram shows five receiving modules 4, designated 1#, 2#, 3#, 4#, and 5#. In practical applications, the number of receiving modules 4 can be increased or decreased according to the required number of receiving ports. There are M input ports, and each receiving module 4 has K output ports (in commonly used matrix optical switches, K=M; the relationship between K and M is not specified here). The total number of receiving modules 4 is N, and the total number of output ports of the matrix optical switch is N*K. For each doubling of the output port number K, only one optical deflection device and one receiving module 4 need to be added to the beam deflection module 3. In practice, the newly added optical deflection device and receiving module 4 can be integrated into a pluggable output module, realizing a modular splicing flexible expansion design with reconfigurable output port numbers. In the optical switching link, the number of output ports of the matrix optical switch can be increased or decreased in real time as needed. When adding or removing output modules from the matrix optical switch, the relevant control program must also be simultaneously reconfigured via software to synchronize the change in the number of available communication output ports. The input-side software control and reconfiguration and the output-side modular splicing and flexible expansion design together constitute the asymmetric port non-cascaded reconfigurable matrix optical switch proposed in this invention.

[0061] Figure 2 In the provided matrix optical switch, both the first optical modulator 2 and the second optical modulator 41 are transmissive. In this embodiment of the invention, another matrix switch is also provided, in which both the first optical modulator 2 and the second optical modulator 41 are reflective. Figure 3 This is a schematic diagram of another asymmetric port non-cascaded reconfigurable matrix optical switch architecture provided in an embodiment of the present invention. The optical modulators (first optical modulator 2 and second optical modulator 41) are reflective and include, but are not limited to, micro-electro-mechanical systems (MEMS) galvanometer arrays, digital micromirror devices (DMDs), and liquid crystal on silicon (LCoS). Figure 3 Three receiving modules, designated as 1#, 2#, and 3#, are listed, along with their optical path structure and principle. Figure 2 Similarly, the transformation mirror group 43 is omitted.

[0062] The following example uses receiver module 4, numbered 2#. Figure 3 The optical path structure is described below. The optical signal is modulated by the first optical modulator 2, and its exit angle is changed before it enters the surface of the second optical deflector 32 in the beam deflection module 3. After passing through the second optical deflector 32, it enters the second optical modulator 41 in the receiving module 4 (2#). After being modulated as needed by the second optical modulator 41, its exit angle is changed before it enters the second collimator array 42. The optical paths of the other receiving modules 4 are similar to the above optical path.

[0063] The matrix optical switch provided in this embodiment of the invention includes a first collimator array 1, a first optical modulator 2, a beam deflection module 3, and multiple sets of receiving modules 4. Each receiving module 4 includes a second optical modulator 41 and a second collimator array 42. The light beam enters from the input end of the first collimator array 1 and exits from the second collimator array 42. The number of input ports of the first collimator array 1 is less than the sum of the number of output ports of all the second collimator arrays 42, thus fulfilling the asymmetric port requirement of "few inputs, many outputs" in the optical switching system. Furthermore, the beam deflection module 3 includes multiple sets of optical deflection devices, with each set of devices corresponding one-to-one with a receiving module 4. The first optical modulator 2 receives multiple parallel beams output from the first collimator array 1 and modulates them to change the beam exit angle, forming multiple beams. Each optical deflection device's deflection surface is used to receive one set of beams and deflect them so that they are incident on the target receiving module 4. In other words, multiple beams correspond to a single optical deflection surface and the output of receiver module 4, meaning that the multiple beams are output in parallel without cascading. This eliminates the need to connect a next-level structure at the output port of receiver module 4, achieving asymmetric port expansion and avoiding cascading insertion loss, effectively ensuring the quality of optical signal transmission. Furthermore, if one group of receiver modules 4 fails, the beam exit angle can be adjusted to allow the beam to be output from another receiver module 4. This grouped fault-tolerant redundancy design utilizes port grouping and inter-group redundant channels to switch fault traffic, building a fault-tolerant mechanism and improving reliability.

[0064] The above describes a matrix optical switch, and this embodiment also provides a matrix optical switch control system. Figure 4 This is a schematic diagram of a matrix optical switch control system provided in an embodiment of the present invention, as shown below. Figure 4 As shown, it includes the aforementioned matrix optical switch 100 and control module 200;

[0065] The control module 200 is connected to each modulator in the matrix optical switch 100 and is used to provide modulation signals to each modulator.

[0066] When an output module is added, in order to synchronize the change in the number of available output ports for communication, in practice, the control module is also used to: determine the number of new ports based on the number of output ports of the output module when an output module is detected to be added to the matrix optical switch, and configure the modulation signal of each modulator based on the number of new ports.

[0067] The matrix optical switch control system provided in this embodiment includes the matrix optical switch described above. The embodiments of the matrix optical switch have been described in detail above, and the embodiments of the matrix optical switch control system will not be repeated here. Please refer to the description above.

[0068] The matrix optical switch control system provided in this invention adopts a design combining M*(N*K) (M input ports, N*K output ports) asymmetric ports and a non-cascaded architecture. This design precisely adapts to the asymmetric port requirements of optical switching systems, which have "few inputs and many outputs," thus avoiding cascade insertion loss problems from an architectural perspective and effectively ensuring the quality of optical signal transmission. Based on a modular splicing elastic expansion design with reconfigurable output port count, coupled with an input-end software control and reconfiguration mechanism, it supports flexible addition and removal of output modules. Elastic expansion can be achieved without reconfiguring the basic hardware, significantly improving the equipment's expansion flexibility. The modular splicing architecture integrates a unified control module and simplifies hardware connection methods, reducing equipment deployment and maintenance costs and making signal scheduling more efficient and stable. The output port grouping fault-tolerant redundancy design, with the help of inter-group redundant channels, enables automatic dynamic switching of fault traffic, resulting in stronger equipment fault tolerance and significantly improved overall operational reliability.

[0069] In addition to the matrix optical switch and matrix optical switch control system described above, this invention also provides a full-wavelength optical switching system, including a wavelength selective switch and the aforementioned matrix optical switch; the output terminal of the wavelength selective switch is connected to the input terminal of the first collimator array in the matrix optical switch. The full-wavelength optical switching system provided in this embodiment has the same or corresponding technical features as the matrix optical switch described above, and achieves the same effects.

[0070] The present invention also provides a communication device including the above-described full-wavelength optical switching system. The full-wavelength optical switching system includes the matrix optical switch described above. The embodiments of the matrix optical switch have been described in detail above, and the embodiments of the communication device will not be repeated here, and the effects are the same as above.

[0071] The matrix optical switch, control system, full-wavelength optical switching system, and communication equipment provided by this invention have been described in detail above. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Regarding the methods disclosed in the embodiments, since they correspond to the apparatus disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the apparatus section. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from the principles of the invention, and these improvements and modifications also fall within the protection scope of this invention.

[0072] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A matrix optical switch, characterized in that, include: The system comprises a first collimator array, a first optical modulator, a beam deflection module, and multiple sets of receiving modules; the beam deflection module includes multiple sets of optical deflection devices, and the optical deflection surfaces of the multiple sets of optical deflection devices correspond one-to-one with the receiving modules; the receiving module includes a second optical modulator and a second collimator array; the number of input ports of the first collimator array is less than the sum of the number of output ports of all the second collimator arrays. The input end of the first collimator array is used to receive the light beam; The first optical modulator is used to receive multiple parallel beams output from the first collimator array and modulate the parallel beams to change the beam exit angle and form multiple beams. Each of the optical deflection devices has an optical deflection surface that is used to receive a set of light beams and to deflect the light beams so that the light beams are incident on the second optical modulator in the target receiving module; wherein, the target receiving module is a receiving module corresponding to the optical deflection surface of the optical deflection device; The second optical modulator is used to modulate the light beam after passing through the optical deflection device to change the exit angle of the light beam; The second collimator array is used to receive the light beam emitted from the second optical modulator and collimate the light beam before outputting it.

2. The matrix optical switch according to claim 1, characterized in that, The first optical modulator and the second optical modulator are reflective optical modulators and / or transmissive optical modulators.

3. The matrix optical switch according to claim 1, characterized in that, The optical deflection device is a mirror or a prism.

4. The matrix optical switch according to any one of claims 1 to 3, characterized in that, The receiving module also includes a transformation mirror group, which is located between the second optical modulator and the second collimator array, and is used to transform the beam position and beam waist size.

5. The matrix optical switch according to claim 4, characterized in that, The transformation mirror group includes at least a first mirror group and a second mirror group, and the first mirror group and the second mirror group are arranged sequentially along the transmission direction of the beam emitted from the second optical modulator. The first mirror group is used to perform beam waist size transformation on the beam emitted from the second optical modulator; The effective aperture of the second mirror group is larger than the spot diameter of the beam after transformation by the first mirror group, and the translation of the second mirror group along the direction perpendicular to the beam transmission is less than the difference between its effective aperture and the spot diameter, which is used to adjust the propagation position of the beam.

6. The matrix optical switch according to claim 4, characterized in that, It also includes an output module, which is a module that integrates an optical deflection device and a receiving module into one unit; The output module is located in the transmission direction of a set of beams.

7. A matrix optical switch control system, characterized in that, It includes the matrix optical switch as described in any one of claims 1 to 6, and a control module; The control module is connected to each modulator in the matrix optical switch and is used to provide modulation signals to each modulator.

8. The matrix optical switch control system according to claim 7, characterized in that, The control module is also used for: When an output module is detected to be added to the matrix optical switch, the number of new ports is determined according to the number of output ports of the output module, and the modulation signal of each modulator is configured based on the number of new ports.

9. A full-wavelength optical switching system, characterized in that, Includes a wavelength selective switch, and a matrix optical switch as described in any one of claims 1 to 6; The output of the wavelength selective switch is connected to the input of the first collimator array in the matrix optical switch.

10. A communication device, characterized in that, Includes the full-wavelength optical switching system as described in claim 9.

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