Optical switching apparatus and system

Abstract

The application discloses an optical switching device and system, relates to the technical field of servers, and comprises a first interface module, a second interface module and an optical switching module. The first interface module comprises at least one optical input interface; the second interface module comprises at least one optical output interface; the optical switching module is used for refracting optical signals input by the optical input interface to the optical output interface; the optical switching module sets a target optical path of the optical signals in advance according to at least one of the wavelength of the optical signals, the position of the optical input interface and the position of the optical output interface; the optical signals are transmitted from the optical input interface to the optical output interface by the target optical path; no external power supply is needed; data switching is directly completed through an optical path; theoretically, the signal bandwidth is not limited; and the technical problems of related technologies, such as limitation on bandwidth and large energy consumption, are solved; and the technical effects of no energy consumption and no limitation on signal bandwidth are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of servers, and in particular to an optical switching device and system. BACKGROUND

[0002] In a multi-server system, data exchange between devices is usually connected in different ways according to bandwidth requirements: for transmission rates of 1 Gbps and below, a network cable is generally connected to a switch to achieve data exchange; and for high-speed data transmission exceeding 1 Gbps, an optical module is required to convert electrical signals into optical signals, and then the optical signals are connected to a switch through an optical fiber to complete data exchange.

[0003] However, the performance of the switching chip and the internal cache capacity of the switch in the related art limit the overall bandwidth, which restricts the data exchange efficiency; at the same time, the high-bandwidth switch device has high purchase cost, high running power consumption, and requires professional technical personnel for maintenance, resulting in difficult deployment and high cost. SUMMARY

[0004] The present application provides an optical switching device and system to at least solve the technical problems of large bandwidth limitation and high energy consumption of the switch device in the related art multi-server system.

[0005] The present application provides an optical switching device, comprising: a first interface module, a second interface module and an optical switching module, wherein the first interface module comprises at least one optical input interface, the second interface module comprises at least one optical output interface, the optical input interface is used to receive an optical signal of a first server, and the optical output interface is used to output the optical signal to a second server; the optical switching module is used to refract the optical signal input by the optical input interface to the optical output interface, the optical switching module pre-sets a target optical path of the optical signal according to at least one of the wavelength of the optical signal, the position of the optical input interface and the position of the optical output interface, and uses the target optical path to transmit the optical signal from the optical input interface to the optical output interface, and if the wavelength of the optical signal, the position of the optical input interface and the position of the optical output interface of the multiple target optical paths are different in any one, the multiple target optical paths are different optical paths.

[0006] The present application also provides an optical switching system, comprising: an optical switching device as described above; at least one first server and at least one second server, the first server and the second server are connected with the optical switching device, and the first server and the second server communicate through the optical switching device.

[0007] Through the present application, the optical signal is transmitted into the optical switching module through the at least one optical input interface included by the first interface module, the optical switching module refracts the optical signal input by the optical input interface to the optical output interface of the second interface module, wherein the optical switching module sets a target optical path of the optical signal in advance according to at least one of the wavelength of the optical signal, the position of the optical input interface and the position of the optical output interface, and transmits the optical signal from the optical input interface to the optical output interface by using the target optical path, without external power supply, the data exchange is directly completed through the optical path, the signal bandwidth is theoretically unlimited, the passive optical switching module without external power supply is used to realize passive switching, reduce energy consumption, and the data exchange is directly completed through the optical path, the signal bandwidth is theoretically unlimited, so that the restriction of the switch on the bandwidth is greatly reduced, the efficiency and rate of signal exchange are significantly improved, the technical problems of related technologies such as limitation on bandwidth and large energy consumption are solved, and the technical effects of no energy consumption and unlimited signal bandwidth are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0009] Figure 1 A structural schematic diagram of an optical switching device provided by an embodiment of the present application;

[0010] Figure 2 A schematic diagram of an optical-electric conversion module provided by an embodiment of the present application;

[0011] Figure 3 A schematic diagram of a switching module provided by an embodiment of the present application;

[0012] Figure 4 A schematic diagram of an interface module provided by an embodiment of the present application;

[0013] Figure 5 A schematic diagram of a passive data switching system formed by combining the interface module and the switching module provided by an embodiment of the present application;

[0014] Figure 6 A 3-server switching module using optical fibers to replace glass or resin optical paths provided by an embodiment of the present application;

[0015] Figure 7 A 4-server switching module using optical fibers to replace glass or resin optical paths provided by an embodiment of the present application;

[0016] Figure 8A 5 server exchange module using optical fiber to replace glass or resin optical path is provided for an embodiment of the present application;

[0017] Figure 9 A structural diagram of an optical exchange system is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] It should be noted that, in the description of the present application, the terms "comprise", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. The terms "first", "second" and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence.

[0020] In the related art, the data exchange between multiple server devices is connected to a switch using a network cable with a bandwidth of 1 Gbps or below to realize data exchange between different servers; and for more than 1 Gbps, a network card is needed to convert the data into an optical signal through an optical module, and then connected to a switch using an optical fiber to realize data exchange between different servers. For a switch with a bandwidth of 1 Gbps or below, after the data enters the switch, it needs to enter the cache and then enter the switching chip. The data distributed by the switching chip is sent to the corresponding server after passing through the cache; for a switch with a bandwidth of more than 1 Gbps, the electrical signal of each server needs to be converted into an optical signal for transmission after photoelectric conversion, and the optical signal needs to enter the cache after reaching the switch, and then enter the switching chip, and then be converted into an electrical signal by the photoelectric conversion module of the switch, and then data exchange is performed.

[0021] The photoelectric conversion module of the related art can convert the electrical signal into an optical signal according to a certain protocol by using an encoder, and control the laser to emit the optical signal according to a certain protocol together with a driver, and receive the optical signal through a receiving module.

[0022] The above technology has the following disadvantages:

[0023] 1. The cache inside the switch and the switching chip limit the bandwidth, which affects the signal exchange rate.

[0024] 2, the switch is equipped with a large cost, and a large amount of energy is consumed in operation, and a technician needs to be maintained.

[0025] In view of the above defects, the embodiment of the application provides an optical switching device and system, which aims to at least solve the technical problems of bandwidth limitation and large energy consumption in the related art, and achieves the technical effects of no energy consumption and no limitation on signal bandwidth, which will be described in detail below.

[0026] In order to enable those skilled in the art to better understand the application scheme, the application will be further described in detail below in combination with the drawings and specific embodiments.

[0027] Figure 1 The optical switching device provided by the embodiment of the application has a structure diagram as shown in the figure. Figure 1 The optical switching device 10 includes a first interface module 101, an optical input interface 1011, a second interface module 102, an optical output interface 1021, an optical switching module 103 and a plurality of target optical paths 1031.

[0028] The first interface module 101 includes at least one optical input interface 1011, and the second interface module 102 includes at least one optical output interface 1021. The optical input interface 1011 is used to receive an optical signal of a first server, and the optical output interface 1021 is used to output the optical signal to a second server. The optical switching module 103 is used to refract the optical signal input by the optical input interface 1011 to the optical output interface 1021. The optical switching module 103 sets a target optical path 1031 of the optical signal in advance according to at least one of a wavelength of the optical signal, a position of the optical input interface 1011 and a position of the optical output interface 1021. The target optical path 1031 is used to transmit the optical signal from the optical input interface 1011 to the optical output interface 1021. If the wavelength of the optical signal, the position of the optical input interface 1011 and the position of the optical output interface 1021 of the plurality of target optical paths 1031 are different, the plurality of target optical paths 1031 are different optical paths.

[0029] The first server is a server for sending data, i.e., a data sending end. The second server is a server for receiving data, i.e., a data receiving end. The different optical paths are optical paths that do not overlap and intersect each other.

[0030] It can be understood that the first interface module 101 of the embodiment of the present application includes at least one optical input interface 1011, the second interface module 102 includes at least one optical output interface 1021, the optical input interface 1011 is used to receive the optical signal of the first server, and the optical output interface 1021 is used to output the optical signal to the second server; the optical switching module 103 is used to refract the optical signal input by the optical input interface 1011 to the optical output interface 1021, in the optical switching module 103, a plurality of target optical paths 1031 are pre-set, through the target optical path 1031, the optical signal can be transmitted from the optical input interface 1011 to the optical output interface 1021, if the wavelength of the optical signal corresponding to the plurality of target optical paths, the position of the optical input interface 1011 or the position of the optical output interface 1021 has any one factor different, then the target optical paths are different optical paths distinguished from each other, so as to distinguish the paths of different optical input interfaces 1011 to optical output interfaces 1021, and ensure the correctness of data transmission.

[0031] In the embodiment of the present application, the optical switching module 103 includes a first optical layer, a second optical layer and a third optical layer, the first optical layer, the second optical layer and the third optical layer are pre-set to set the target optical path of the optical signal according to at least one of the wavelength of the optical signal, the position of the optical input interface 1011 and the position of the optical output interface 1021; the target optical path includes a first sub-optical path, a second sub-optical path and a third sub-optical path, the first optical layer separates the optical signal input by the optical input interface 1011 to the first sub-optical path, the second optical layer refracts the optical signal in the first sub-optical path to the second sub-optical path, and the third sub-optical path refracts the optical signal in the second sub-optical path to the optical output interface 1021.

[0032] It can be understood that the optical switching module 103 of the embodiment of the present application includes a first optical layer, a second optical layer and a third optical layer, the first optical layer, the second optical layer and the third optical layer set the target optical path of the optical signal according to at least one of the wavelength of the optical signal, the position of the optical input interface 1011 and the position of the optical output interface 1021; the target optical path is formed by the first optical layer, the second optical layer and the third optical layer, and specifically includes a first sub-optical path, a second sub-optical path and a third sub-optical path, the first optical layer is responsible for separating the optical signal input by the optical input interface 1011 to the first sub-optical path, the second optical layer is responsible for refracting the optical signal in the first sub-optical path to the second sub-optical path, and the third optical layer is responsible for refracting the optical signal in the second sub-optical path to the optical output interface 1021.

[0033] In the embodiment of the present application, if the plurality of target optical paths are different optical paths, the sub-optical paths of the plurality of target optical paths are different optical paths.

[0034] It can be understood that if the multiple target light paths in the embodiments of the present application are physically mutually distinguished different light paths, then the respective sub-light paths constituting the target light paths, i.e., the first sub-light path, the second sub-light path and the third sub-light path, are also mutually distinguished different light paths.

[0035] In the embodiments of the present application, when the first server communicates with the second server, the wavelength of the optical signal of the first server is determined according to the position of the optical input interface 1011 and the address of the second server, and the address of the second server corresponds to the position of the optical output interface 1021.

[0036] The wavelength of the optical signal refers to the wavelength of the optical signal emitted by the first server, and optical signals of different wavelengths will take different physical paths in the optical switching module 103 due to different refractive indexes. The address of the second server is a Media Access Control (MAC) address, which is the physical hardware address of the server and is the unique identifier of the server in the network. Therefore, the embodiments of the present application determine the corresponding optical output interface 1021 according to the second server to which the optical signal needs to be propagated, select a suitable target wavelength, and enable the optical signal to be accurately transmitted to the target optical output interface 1021 according to the set target light path.

[0037] It can be understood that when the first server communicates with the second server, the first server will determine the wavelength of the optical signal to be emitted according to the position of the optical input interface 1011 connected to itself and the address (such as the MAC (Media Access Control) address) of the target second server. Since the address of the second server corresponds to the position of a specific optical output interface 1021 on the optical switching device in advance, and optical signals of different wavelengths have different refractive indexes in the optical switching module 103 and will propagate along different physical paths, by selecting a specific wavelength that matches the target optical output interface 1021, the optical signal emitted by the first server can be accurately transmitted along the preset target light path in the optical switching module 103 to the target optical output interface 1021, thereby reaching the second server.

[0038] In the embodiments of the present application, the refractive indexes of the first optical layer, the second optical layer and the third optical layer are different.

[0039] The first optical layer, the second optical layer and the third optical layer together constitute the optical switching module 103, which is composed of one or more groups of passive optical glass or transparent resin having similar properties to optical glass. The first optical layer and the third optical layer can be composed of an integral piece of passive optical glass or transparent resin, and the second optical layer can be composed of multiple groups of passive optical glass. The second optical layer has a multi-segment structure, each segment being filled or manufactured with materials having different refractive indices, so as to guide the optical signals to the correct output path by using the principle of refraction of light at the interface of materials with different refractive indices. The refractive index is an optical property of passive optical glass or transparent resin having similar properties to optical glass, which represents the degree of slowing down of the speed of light propagation in the material. The refractive indices of different wavelengths of light in the same material are different, and the refractive indices of the same light in different materials are also different. The application realizes optical path control by designing the refractive indices of the first optical layer, the second optical layer and the third optical layer.

[0040] It can be understood that the first optical layer, the second optical layer and the third optical layer of the embodiment of the application are composed of materials with different refractive indices, so as to accurately adjust the propagation paths of different wavelength optical signals and ensure that they can be transmitted from the optical input interface 1011 to the correct optical output interface 1021 according to the predetermined target optical path.

[0041] In the embodiment of the application, the first optical layer can be a light splitting layer for differentiating the optical paths of different wavelength optical signals, and the optical path of the optical signal in the first optical layer is the first sub-optical path. The second optical layer can be a light adjusting layer for guiding the optical signals split by the first optical layer to different optical paths, and the optical path of the optical signal in the second optical layer is the second sub-optical path. The third optical layer can be a light guiding layer for guiding the optical signals input from the second optical layer to the optical-electricity conversion module of the input end server, and the optical path of the optical signal in the third optical layer is the third sub-optical path.

[0042] It can be understood that the first optical layer of the embodiment of the application acts as a light splitting layer, which differentiates the input optical signals to different optical paths according to the wavelength difference of the optical signals, and the propagation path of the optical signal in the first optical layer is the first sub-optical path. The second optical layer acts as a light adjusting layer, which receives and adjusts the split optical signals from the first optical layer, and accurately guides these optical signals to the paths leading to different target receiving ends by using the materials with different refractive indices in multiple segments, and the propagation path of the optical signal in the second optical layer is the second sub-optical path. The third optical layer acts as a light guiding layer, which converges the optical signals input from the second optical layer and finally guides them to the optical-electricity conversion module of the target receiving server, and the propagation path of the optical signal in the third optical layer is the third sub-optical path. The first sub-optical path, the second sub-optical path and the third sub-optical path together constitute a complete target optical path.

[0043] In the embodiment of the present application, the optical switching module 103 further comprises at least one light guide column and at least one light combiner, the light guide column is connected with the optical input interface 1011, and the light combiner is connected with the optical output interface 1021, the light guide column is used to output the optical signal of the optical input interface 1011 to the first optical layer, and the light combiner is used to combine the optical signals output by the third optical layer into one beam of signal and then output to the optical output interface 1021.

[0044] It can be understood that the optical switching module 103 in the embodiment of the present application further comprises at least one light guide column and at least one light combiner, the light guide column is connected between the optical input interface 1011 and the first optical layer, and is used to guide and output the optical signal received by the optical input interface 1011 to the first optical layer; the light combiner is connected between the third optical layer and the optical output interface 1021, and is used to combine the multiple optical signals output by the third optical layer and from different servers into one beam of optical signal, and then output to the target second server through the optical output interface 1021.

[0045] In the embodiment of the present application, the optical input interface 1011 and the optical output interface 1021 can be a mirror optical path, the first server accesses the optical input interface through an optical fiber, and the second server accesses the optical output interface through an optical fiber.

[0046] The mirror optical path refers to an optical signal transmission path composed of a surface with reflecting properties (such as a coated mirror surface), which is used to accurately change or guide the direction of the optical beam output from the optical fiber of the server, so that it can accurately enter the internal optical path of the optical switching module 103 or be coupled to the output optical fiber from the internal optical path.

[0047] It can be understood that the optical input interface 1011 and the optical output interface 1021 in the embodiment of the present application realize the transmission of optical signals through a mirror optical path, that is, a mirror structure with reflecting function is used to guide and direct the optical signals, so as to ensure that they can accurately enter the optical switching module 103 from the input optical fiber and can be accurately coupled to the output optical fiber from the optical switching module 103.

[0048] It should be noted that the first interface module and the second interface module in the embodiment of the present application can each comprise a positioning hole, and the first interface module and the second interface module can be accurately installed through the positioning hole.

[0049] In the embodiment of the present application, the optical switching module 103 comprises at least one first wavelength division device and at least one second wavelength division device, which are pre-configured to set a target optical path 1031 of the optical signal according to at least one of the wavelength of the optical signal, the position of the optical input interface 1011 and the position of the optical output interface 1021, the target optical path 1031 comprising optical fibers connecting the first wavelength division device and the second wavelength division device, the first wavelength division device separating the optical signal input by the optical input interface to the target optical path, and the second wavelength division device transmitting the optical signal in the target optical path to the optical output interface.

[0050] The first wavelength division device and the second wavelength division device are made of passive optical glass or transparent resin having similar properties to optical glass, the first wavelength division device being used to differentiate the optical paths of optical signals of different wavelengths, the optical paths of the optical signals in the first wavelength division device being different according to the wavelength of the optical signal and the position of the optical input interface 1011; the first wavelength division device being used to combine the multiple optical signals from different servers output by the optical fibers into one optical signal and transmit the optical signal to the optical output interface 1021 for output to the target second server.

[0051] It can be understood that the optical switching module 103 of the embodiment of the present application is used to transmit the optical signal input by the optical input interface 1011 after refraction to the optical output interface 1021, and the optical switching module 103 is composed of at least one first wavelength division device, at least one second wavelength division device and optical fibers connecting them; the first wavelength division device and the second wavelength division device are pre-configured to set the transmission path of the optical signal, i.e. the target optical path 1031, according to at least one of the wavelength of the optical signal, the position of the optical input interface 1011 and the position of the optical output interface 1021, the target optical path 1031 being formed by the optical fibers connecting the two wavelength division devices, wherein the first wavelength division device is responsible for separating and guiding the input optical signal to the optical fibers in the target optical path, and the second wavelength division device is responsible for guiding and outputting the optical signal in the optical fibers to the corresponding optical output interface 1021.

[0052] As described above, in the embodiment of the present application, the optical switching module 103 of the first optical layer, the second optical layer and the third optical layer can be replaced by multiple optical fibers and multiple first wavelength division devices and multiple second wavelength division devices, the multiple optical fibers being used to replace the multiple target optical paths connecting from the optical input interface 1011 to the optical output interface 1021, and the multiple optical fibers being accommodated in the optical fiber box.

[0053] It can be understood that the function of the optical switching module 103 in the embodiments of the present application can be realized by using a plurality of independent optical fibers; the plurality of optical fibers correspond to and replace the plurality of target optical paths in the original integrated optical path, and each optical fiber is directly connected from an optical input interface 1011 to an optical output interface 1021 to form a point-to-point optical signal transmission channel, and all the optical fibers used for connection are collected and stored in an optical fiber box for management.

[0054] In the embodiments of the present application, when the first server communicates with the second server, the wavelength of the optical signal of the first server is determined according to the position of the optical input interface 1011 and the address of the second server, and the address of the second server corresponds to the position of the optical output interface 1021.

[0055] It can be understood that when the first server and the second server perform optical communication, the wavelength of the optical signal emitted by the first server is determined according to the position of the optical input interface 1011 of the first server and the target address of the second server; and the target address of the second server corresponds to the physical position of the optical output interface 1021 thereof in the system, that is, through the mapping relationship between the interface position and the address, a suitable optical signal wavelength is dynamically selected to realize accurate directional communication.

[0056] According to the optical switching device provided in the embodiments of the present application, the optical signal is transmitted into the optical switching module through at least one optical input interface included in the first interface module, and the optical switching module refracts the optical signal input by the optical input interface to the optical output interface of the second interface module, wherein the optical switching module includes a first optical layer, a second optical layer and a third optical layer, which are pre-set to set a target optical path of the optical signal according to the wavelength of the optical signal, the position of the optical input interface and the position of the optical output interface, the first optical layer separates the optical signal input by the optical input interface to a first sub-optical path, the second optical layer refracts the optical signal in the first sub-optical path to a second sub-optical path, and the third sub-optical path refracts the optical signal in the second sub-optical path to the optical output interface. Through the passive optical switching module without external power supply, passive switching is realized, energy consumption is reduced, and data exchange is directly completed through an optical path, so that the signal bandwidth is theoretically unlimited, thereby greatly reducing the restriction of the switch on the bandwidth and significantly improving the efficiency and rate of signal exchange.

[0057] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be realized by means of software and a general hardware platform as required, of course, it can also be realized by hardware, but in many cases the former is a better embodiment.

[0058] The optical switching device will be further described below through a specific embodiment.

[0059] As Figure 2The image shows the photoelectric conversion module used in this embodiment, which is a tunable wavelength optical module. The optical module incorporates two or more lasers (TOSA, Transmitter Optical Sub-Assembly). These two or more lasers emit different wavelengths, typically 850nm, 1310nm, 1350nm, and 1550nm, with different wavelengths representing signals destined for different devices. The operation of the laser is controlled by the driver, which determines the operation of the laser according to the server's MAC address. The encoder DSP (Digital Signal Processor) is responsible for encoding, decoding, and error correction of electrical signals according to the standard protocol. The light emitted by any laser passes through a wavelength division multiplexing (WDM) device, which refracts light of different wavelengths and directions input into the same direction. Two or more receivers ROSA (Receiver Optical Sub-Assembly) are matched with different wavelengths. Light of different wavelengths is input to different receivers ROSA through optical fibers. Different wavelengths exchange data with different devices. In this embodiment, the receiver ROSA passively receives data. The receiver ROSA can accept different wavelengths. This tunable optical module is used to adapt to the problem of different optical modules having different wavelengths, which makes the equipment difficult to use. This embodiment utilizes the characteristic of this optical module that can change different wavelengths as an important component for interconnection between servers.

[0060] like Figure 3 The diagram shows an optical switching module for three servers provided in this embodiment. 601 is a light guide column, facilitating the connection between the server's output fiber and the optical switching module. 602 is optical glass or resin, acting as a beam splitter; different wavelengths of light emitted by the TOSA (Optical Optical Switch) follow different optical paths within 602. 603 is a dimming layer, also made of optical glass or resin, which alters the direction of the light split by 602. The dimming layer is designed in multiple segments to accommodate different optical paths, each segment matching a different refractive index material. 604 is a light guide layer, facilitating the routing of light from the dimming layer to the receiving end of the same server. 604 is also a beam combiner, combining light of different wavelengths from different servers into a single beam before outputting it to the receiving server's ROSA. In this three-server optical switching module, a wavelength of λ1 of 1300-1500nm and a wavelength of λ2 of 850-1250nm are recommended. The refractive index of the beam splitter should be between 1.2 and 1.5 for optimal implementation. Depending on the specific wavelength and optical path, the refractive index of the dimming layer is matched. Generally, the refractive index of a is 2.8-2.9, the refractive index of b is 2.1-2.6, the refractive index of c is 2.5-2.8, and the refractive index of d is 1.8-2.3.

[0061] The optical path of the embodiment needs to be customized according to different servers. The wavelengths need to be matched in advance, so that the input device can emit different wavelengths according to the different device control optical module to transmit according to the customized optical path. For example, when server 1 and server 3 send data at the same time, server 2 also sends data to server 3. Then server 1 TOSA sends wavelength λ2, and server 2 also sends wavelength λ2. The two wavelengths λ2 enter the ROSA of server 3 after being combined into a beam and are converted into electrical signals. The electrical signals are decoded by the DSP of the optical module of server 3, and the decoding can be performed according to the identity codes of server 1 and server 2 in the communication protocol.

[0062] As shown in Figure 4 is an interface module, Figure 4 The left view is a front view, and the right view is a side view. The module is composed of a positioning hole, a mirror optical path, and an optical fiber. The module is convenient for connecting the optical fiber led out by the optical module and the passive optical exchange module proposed in the embodiment. The interface module shown in the figure uses a three-server optical path interface, and more servers correspondingly increase the mirror optical path.

[0063] As shown in Figure 5 is a schematic diagram of a passive data exchange system formed by combining the interface module and the exchange module. The optical fiber from the TOSA enters the exchange module after the interface and is transmitted to the ROSA. Data communication is realized.

[0064] The embodiment of the application can also use an optical fiber to replace a glass or resin optical path, and the detailed scheme is shown in Figure 6 For example, server 1 and server 2 simultaneously exchange data with server 3. Server 1 emits wavelength λ2, and after passing through the wavelength division device, optical fiber 1-1 enters the wavelength division device of server 3. Server 2 emits wavelength λ2, and after passing through the wavelength division device, optical fiber 2-2 enters the wavelength division device of server 3. The wavelength division device of server 3 combines the light from server 1 and server 2 into a beam and enters the ROSA of server 3, and converts into an electrical signal. The electrical signal is processed in the same way as the optical exchange module, and the communication mode between other servers is similar to the embodiment. The embodiment is simpler to implement using an optical fiber, but requires an optical fiber, which needs to be stored in an optical fiber box in large quantities. Figure 7 and Figure 8 When multiple servers are interconnected, a large number of optical fibers are required. The number of optical fibers is related to the number of servers: number = server number × (server number - 1).

[0065] Figure 9 A structure schematic diagram of an optical exchange system provided by the embodiment of the application is shown in the figure, wherein the optical exchange system 30 comprises an optical exchange device 10, a first server 301, and a second server 302.

[0066] The first server 301 and the second server 302 are connected with the optical switching device 10 respectively, and the first server 301 and the second server 302 communicate through the optical switching device 10.

[0067] It can be understood that the first server 301 and the second server 302 of the embodiment of the application are connected to the optical switching device 10 through optical fibers respectively, when the first server 301 needs to communicate with the second server 302, the optical module thereof emits an optical signal of a specific wavelength according to a target address, the optical signal is directly guided to the second server 302 through a preset optical path in the optical switching device 10, that is, the difference in refraction of different wavelengths of light in the material is used, so as to realize data exchange between the two.

[0068] In the embodiment of the application, the server structures of the first server 301 and the second server 302 are the same, and the server structure comprises an optoelectronic conversion module, and the optoelectronic conversion module is connected to the optical switching device 10 through an optical fiber.

[0069] It can be understood that the first server 301 and the second server 302 of the embodiment of the application have the same server structure, and the module is connected with the interface module on the optical switching device 10 through an optical fiber respectively, so that the two servers can not only emit an optical signal of a specific wavelength as a sending end, but also receive and decode the optical signal as a receiving end, realizing bidirectional communication.

[0070] In the embodiment of the application, the optoelectronic conversion module comprises at least one laser, a driver, an encoder, a third wave division device, a receiver and a signal amplifier, wherein the driver is used for sending a driving signal to the laser according to an electrical signal; the laser is used for emitting an optical signal of a target wavelength according to the driving signal of the driver; the encoder is used for encoding, decoding and error correcting the electrical signal output by the output end server; the third wave division device is used for refracting the optical signal of the target wavelength and the optical signal input in different directions and outputting them to the optical switching device 10 in the same direction; the receiver is used for receiving the optical signal transmitted by the optical switching device 10 and converting it into an electrical signal; and the signal amplifier is used for amplifying the electrical signal and outputting.

[0071] The laser comprises two or more laser diodes capable of emitting light signals of different wavelengths, different wavelengths being used to represent data to be transmitted to different target servers; the driver receives control signals from the server and the encoder and decides which laser to activate according to the address of the target server, provides the selected laser with precise driving current so that the selected laser emits light signals of the corresponding target wavelength; the third wave division device functions at the transmitting end to combine the light signals from the lasers and output them from the same optical fiber port to the optical switching device 10; the signal amplifier, i.e. MA (Main Amplifier), is located behind the receiver and is used to amplify the weak electrical signals converted by the receiver so that the subsequent encoder and other circuits can correctly decode and process the signals

[0072] It can be understood that the photoelectric conversion module of the embodiment of the application comprises at least one laser, a driver, an encoder, a third wave division device, a receiver and a signal amplifier; the encoder first encodes and processes the electrical signals output by the server, the driver generates a driving signal according to the address of the target server and the signal of the encoder and sends the driving signal to the corresponding laser; the laser emits light signals of a specific target wavelength according to the driving signal; the third wave division device combines the emitted light signals with light signals possibly input from other directions so that they can be output through the same optical fiber towards the optical switching device 10; at the same time, the receiver is responsible for receiving the light signals transmitted from the optical switching device 10 and transmitted by other servers and converting the light signals into initial electrical signals; the signal amplifier amplifies the weak electrical signals converted and outputs the amplified signals to the encoder for decoding and error correction processing.

[0073] According to the optical switching system provided by the embodiment of the application, the optical signals are transmitted into the optical switching module through the at least one optical input interface included in the first interface module, and the optical switching module refracts the optical signals input by the optical input interface to the optical output interface of the second interface module. The optical switching module comprises a first optical layer, a second optical layer and a third optical layer, which are pre-set to set a target optical path of the optical signals according to the wavelength of the optical signals, the position of the optical input interface and the position of the optical output interface, the first optical layer separates the optical signals input by the optical input interface to a first sub optical path, the second optical layer refracts the optical signals in the first sub optical path to a second sub optical path, and the third sub optical path refracts the optical signals in the second sub optical path to the optical output interface. The passive optical switching module without external power supply is used to realize passive switching, reduce energy consumption, and directly complete data switching through an optical path, so that the signal bandwidth is theoretically unlimited, the bandwidth restriction of the switch is greatly reduced, and the efficiency and rate of signal switching are significantly improved.

[0074] The features of the embodiments corresponding to the optical switching system can be seen from the related description of the embodiments of the optical switching system, which will not be described here in detail.

[0075] Those skilled in the art will further appreciate that the units and algorithms described in connection with the examples disclosed herein can be implemented in electronic hardware, computer software, or both. As described above, the disclosure is directed to each individual feature, hardware and software, and method steps of the various examples. Accordingly, this disclosure is not limited in scope to one or more particular hardware implementations with certain algorithmic steps, nor is implementation of one specific combination of hardware and software features limited to pursuit of only one algorithmic procedure. Numerous alternative implementations, based on processing and communication techniques, can be provided by those skilled in the art without departing from the scope of the present disclosure. Those skilled in the art will recognize that the examples provided can be implemented in a computer system for optimal performance and utilization of the CPU and memory resources of the computer system. Those skilled in the art will also recognize that the examples provided can be implemented using a combination of hardware and software.

[0076] The above provides a photoelectric converter power compensation device, system, server, method and equipment. The principles and implementation modes of the present application are described by applying specific examples herein. The above example description is only applicable to help understand the method and core idea of the present application. It should be pointed out that for those skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An optical switching device, characterized in that, include: The system comprises a first interface module, a second interface module, and an optical switching module, wherein... The first interface module includes at least one optical input interface, and the second interface module includes at least one optical output interface. The optical input interface is used to receive optical signals from the first server, and the optical output interface is used to output the optical signals to the second server. The optical switching module is used to refract the optical signal input from the optical input interface to the optical output interface. The optical switching module pre-sets a target optical path for the optical signal based on at least one of the wavelength of the optical signal, the position of the optical input interface, and the position of the optical output interface. The optical signal is transmitted from the optical input interface to the optical output interface using the target optical path. If any one of the wavelength of the optical signal, the position of the optical input interface, and the position of the optical output interface differs among the multiple target optical paths, then the multiple target optical paths are different optical paths. The optical switching module includes a first optical layer. The system comprises a first optical layer, a second optical layer, and a third optical layer. The first optical layer, the second optical layer, and the third optical layer are pre-configured to set a target optical path for the optical signal based on at least one of the wavelength of the optical signal, the position of the optical input interface, and the position of the optical output interface. The target optical path includes a first sub-optical path, a second sub-optical path, and a third sub-optical path. The first optical layer separates the optical signal input from the optical input interface to the first sub-optical path. The second optical layer refracts the optical signal in the first sub-optical path to the second sub-optical path. The third sub-optical path refracts the optical signal in the second sub-optical path to the optical output interface.

2. The optical switching device according to claim 1, characterized in that, The first optical layer, the second optical layer, and the third optical layer have different refractive indices.

3. The optical switching device according to claim 1, characterized in that, The optical switching module further includes at least one light guide post and at least one light combiner. The light guide post is connected to the optical input interface, and the light combiner is connected to the optical output interface. The light guide post is used to output the optical signal from the optical input interface to the first optical layer, and the light combiner is used to combine the optical signals output from the third optical layer into a single signal and output it to the optical output interface.

4. The optical switching device according to claim 1, characterized in that, The optical input interface and the optical output interface are mirror optical paths. The first server is connected to the optical input interface via optical fiber, and the second server is connected to the optical output interface via optical fiber.

5. The optical switching device according to claim 1, characterized in that, The optical switching module includes at least one first wavelength division multiplexing (WDM) device and at least one second wavelength division multiplexing (WDM) device. The first WDM device and the second WDM device are pre-configured to set the target optical path of the optical signal according to at least one of the wavelength of the optical signal, the position of the optical input interface, and the position of the optical output interface. The target optical path includes an optical fiber connecting the first wavelength division multiplexing (WDM) device and the second WDM device. The first WDM device separates the optical signal input from the optical input interface to the target optical path, and the second WDM device transmits the optical signal from the target optical path to the optical output interface.

6. The optical switching device according to claim 1, characterized in that, When the first server communicates with the second server, the wavelength of the optical signal of the first server is determined according to the location of the optical input interface and the address of the second server, and the address of the second server corresponds to the location of the optical output interface.

7. An optical switching system, characterized in that, include: The optical switching device as described in any one of claims 1-6; At least one first server and at least one second server are provided, the first server and the second server being respectively connected to the optical switching device, and the first server and the second server communicating with each other through the optical switching device.

8. The optical switching system according to claim 7, characterized in that, The first server and the second server have the same server structure, and the server structure includes a photoelectric conversion module, which is connected to the optical switching equipment via an optical fiber.

9. The optical switching system according to claim 8, characterized in that, The photoelectric conversion module includes at least one laser, a driver, an encoder, a third wavelength division multiplexing (WDM) device, a receiver, and a signal amplifier, wherein... The driver is used to send a drive signal to the laser according to an electrical signal; The laser is used to emit an optical signal of a target wavelength according to the drive signal of the driver; An encoder is used to encode, decode, and correct errors in the electrical signals output by the server at the output end. The third wavelength division multiplexing device is used to refract the optical signal of the target wavelength and the optical signals input from different directions and output them to the optical switching device from the same direction; The receiver is used to receive the optical signals transmitted by the optical switching device and convert them into electrical signals; The signal amplifier is used to amplify the electrical signal and output it.

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