Multiplexer / Demultiplexer System, Port Configuration Method, Device and Computer Readable Storage Medium

Abstract

The present application discloses a multiplexing / demultiplexing system, a port configuration method, an apparatus and a computer-readable storage medium, which relate to the technical field of wavelength division multiplexing and are used to improve the transmission efficiency of a transmission system using wavelength division multiplexing. The multiplexing / demultiplexing system includes: a multiplexing unit, which is configured to multiplex N first signal light waves respectively input through N multiplexing ports one by one, and output the target signal light wave obtained by multiplexing through a light wave output port; a demultiplexing unit, which is configured to demultiplex the target signal light wave received through a light wave input port to obtain N second signal light waves; each of the N second signal light waves corresponds to one first signal light wave; a control unit, which is configured to configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports according to the wavelengths of the N first signal light waves, and respectively control each second signal light wave to be output through a demultiplexing port with a matching wavelength; N is a positive integer greater than 1.

Description

Technical Field

[0001] This application relates to the field of wavelength division multiplexing technology, and particularly to a multiplexer / demultiplexer system, a port configuration method, a device, and a computer-readable storage medium. Background Art

[0002] Currently, in a wavelength division multiplexing transmission system, different optical signals can be respectively connected to different multiplexing ports of a multiplexer / demultiplexer at the transmitting end of the system, so that signal light waves of different wavelengths can enter the multiplexer / demultiplexer from different multiplexing ports. In this way, the multiplexer / demultiplexer can multiplex the signal light waves of different wavelengths and transmit the multiplexed signal light waves in a single optical fiber. Thus, at the receiving end of the system, another multiplexer / demultiplexer can demultiplex the signal light waves transmitted in the single optical fiber to obtain signal light waves of different wavelengths, and control the signal light waves of different wavelengths to be output from different demultiplexing ports of the other multiplexer / demultiplexer to different receivers.

[0003] However, since the multiplexer / demultiplexer used in the wavelength division multiplexing system is a passive device, the multiplexing ports and demultiplexing ports of the multiplexer / demultiplexer are each specified with the wavelengths of signal light waves that can pass through. In this way, during the use of the wavelength division multiplexing transmission system, it is necessary to repeatedly check whether the wavelengths of the signal light waves match the wavelengths of the signal light waves that can pass through the multiplexing ports (and / or demultiplexing ports). Therefore, the transmission efficiency of using the wavelength division multiplexing transmission system is relatively low. Summary of the Invention

[0004] This application provides a multiplexer / demultiplexer system, a port configuration method, a device, and a computer-readable storage medium, which are used to improve the transmission efficiency of using a wavelength division multiplexing transmission system.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] In a first aspect, a multiplexer / demultiplexer system is provided. The multiplexer / demultiplexer system includes: a multiplexing unit, which includes N multiplexing ports and an optical wave output port; the multiplexing unit is used to multiplex N first signal light waves input corresponding to the N multiplexing ports one by one, and output the multiplexed target signal light wave from the optical wave output port; a demultiplexing unit, which includes N demultiplexing ports and an optical wave input port; the optical wave input port is connected to the optical wave output port; the demultiplexing unit is used to demultiplex the target signal light wave received by the optical wave input port to obtain N second signal light waves; each of the N second signal light waves corresponds to one of the first signal light waves; a control unit, which is connected to the multiplexing unit and the demultiplexing unit; the control unit is used to configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports according to the wavelengths of the N first signal light waves, and respectively control each second signal light wave to be output from a demultiplexing port with a matching wavelength; where N is a positive integer greater than 1.

[0007] Based on the above multiplexer / demultiplexer system, the control unit can obtain the wavelengths of N first signal light waves input corresponding to N multiplexing ports one by one, and configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports according to the wavelengths of the N first signal light waves, so as to control each second signal light wave respectively and output it from a demultiplexing port with a matching wavelength, rather than specifying the wavelengths of the signal light waves that can pass through each multiplexing port and each demultiplexing port. Therefore, during the use of the wavelength division multiplexing transmission system, there is no need to check whether the wavelength of the signal light wave matches the wavelength of the signal light wave that can pass through the multiplexing port (and / or demultiplexing port), thereby improving the transmission efficiency of using the wavelength division multiplexing transmission system.

[0008] In a possible implementation manner, the above control unit includes: N first photodetectors, each of the N first photodetectors is respectively connected to a multiplexing port; each first photodetector is used to detect whether a first signal light wave is input to the corresponding multiplexing port; a spectral scanning module, the spectral scanning module can be connected to the N multiplexing ports; a controller, the controller is connected to the N first photodetectors and the spectral scanning module; wherein, the controller is used to control the spectral scanning module to be connected to the target multiplexing port and control the spectral scanning module to scan and obtain the wavelength of the first signal light wave output from the target multiplexing port when the target photodetector detects that a first signal light wave is input to the target multiplexing port; the target photodetector is any one of the N first photodetectors; the target multiplexing port is the multiplexing port corresponding to the target photodetector.

[0009] In a possible implementation manner, the above control unit further includes: M analog switches, the M analog switches are connected to the N first photodetectors and the controller, and each of the M analog switches corresponds to at least one first photodetector; wherein, the controller is further used to respectively control each analog switch to be sequentially connected to the corresponding first photodetector; M is a positive integer.

[0010] In a possible implementation manner, the above control unit further includes: a control optical switch, the control optical switch includes N moving ends and a fixed end, each of the N moving ends is connected to a multiplexing port, and the fixed end is connected to the spectral scanning module; the control optical switch is further connected to the controller; wherein, the controller is specifically used to control the target moving end to be connected to the fixed end when the target photodetector detects that a first signal light wave is input to the target multiplexing port; the target moving end is the moving end corresponding to the target multiplexing port among the N moving ends.

[0011] In a possible implementation, the above-mentioned spectral scanning module includes: a variable optical attenuator; a first optical splitter, the input end of the first optical splitter is connected to the variable optical attenuator; a second photodetector, the second photodetector is connected to the first output end of the first optical splitter; an optical channel monitor, the optical channel monitor is connected to the second output end of the first optical splitter; wherein, the variable optical attenuator is configured to adjust the attenuation value of the variable optical attenuator based on the detected optical power values detected by the target photodetector and the second photodetector; the optical channel monitor is configured to determine the wavelength of the first signal optical wave corresponding to the target multiplexing port according to the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter; the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the variable optical attenuator.

[0012] In a possible implementation, the above-mentioned multiplexing unit further includes: a first coupler, the input end of the first coupler is connected to N multiplexing ports, and the output end is connected to the optical wave output port; the first coupler is configured to multiplex N first signal optical waves to obtain a target signal optical wave.

[0013] In a possible implementation, the above-mentioned multiplexing unit further includes: N second optical splitters, the input end of each of the N second optical splitters is connected to a multiplexing port, the first output end of each second optical splitter is connected to a first photodetector of the control unit, the second output end of each second optical splitter is connected to a moving end of the control optical switch of the control unit, and the third output end of each second optical splitter is connected to the first coupler.

[0014] In a possible implementation, the above-mentioned multiplexing unit further includes: N third optical splitters, the input end of each of the N third optical splitters is connected to a multiplexing port, the first output end of each third optical splitter is connected to a first photodetector of the control unit; N fourth optical splitters, the input end of each of the N fourth optical splitters is connected to the second output end of a third optical splitter, the first output end of each fourth optical splitter is connected to a moving end of the control optical switch of the control unit, and the second output end of each fourth optical splitter is connected to the first coupler.

[0015] In a possible implementation, the above-mentioned multiplexing unit further includes: Q second couplers, the input end of each of the Q second couplers is connected to at least one of the N multiplexing ports, the output end of each second coupler is connected to the first coupler; each second coupler is configured to multiplex N first signal optical waves and transmit the multiplexed signal optical wave to the first coupler for multiplexing, and Q is a positive integer greater than 1.

[0016] In a possible implementation, the above-mentioned demultiplexing unit further includes: a third coupler, an input end of the third coupler is connected to the optical wave input port, and an output end is connected to N demultiplexing ports; the third coupler is configured to demultiplex a target signal optical wave to obtain N second signal optical waves.

[0017] In a possible implementation, the above-mentioned demultiplexing unit further includes: T wavelength selection switches, the T wavelength selection switches are connected to the N demultiplexing ports, the control unit, and the optical wave input port, and each wavelength selection switch among the T wavelength selection switches corresponds to at least one demultiplexing port; wherein, the control unit is specifically configured to control each wavelength selection switch to configure the wavelength of the signal optical wave that can pass through the corresponding demultiplexing port according to the wavelengths of the N first signal optical waves.

[0018] In a second aspect, a port configuration method is provided, which is applied to the multiplexing / demultiplexing system as described in the first aspect. The port configuration method includes: when N first signal optical waves are input one by one to the N multiplexing ports of the multiplexing unit in the multiplexing / demultiplexing system, obtaining the wavelengths of the N first signal optical waves; configuring the wavelengths of the signal optical waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexing / demultiplexing system according to the wavelengths of the N first signal optical waves; respectively controlling each of the N second signal optical waves to be output from a demultiplexing port with a matching wavelength. Among them, the above-mentioned N second signal optical waves are: the signal optical waves obtained by demultiplexing the target signal optical wave by the demultiplexing unit; the target signal optical wave is: the signal optical wave obtained by multiplexing the N first signal optical waves by the multiplexing unit and output to the demultiplexing unit.

[0019] In a possible implementation, before the method of "configuring the wavelengths of the signal optical waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexing / demultiplexing system according to the wavelengths of the N first signal optical waves", the port configuration method further includes: obtaining the port identifiers of the N multiplexing ports; for each of the N multiplexing ports, determining a demultiplexing port that matches the port identifier of one multiplexing port; the method of "configuring the wavelengths of the signal optical waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexing / demultiplexing system according to the wavelengths of the N first signal optical waves" includes: for each of the N multiplexing ports, configuring the wavelength of the signal optical wave that can pass through the demultiplexing port corresponding to one multiplexing port according to the wavelength of the first signal optical wave corresponding to one multiplexing port.

[0020] In a possible implementation, before the method of "obtaining the wavelengths of N first signal light waves" described above, the port configuration method further includes: obtaining a first detected optical power value and a second detected optical power value; the first detected optical power value is the detected optical power value obtained by a target photodetector detecting the first signal light wave corresponding to a target multiplexing port; the second detected optical power value is the detected optical power value obtained by a second photodetector of the spectral scanning module of the control unit detecting the first signal light wave corresponding to the target multiplexing port; adjusting the attenuation value of the tunable attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value; determining the wavelength of the first signal light wave corresponding to the target multiplexing port through the optical channel monitor of the spectral scanning module according to the optical wave parameters of the signal light wave output from the second output end of the first optical splitter; the optical wave parameters of the signal light wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the tunable attenuator. Wherein, the above-mentioned target photodetector is any one of the N first photodetectors of the control unit; the above-mentioned target multiplexing port is the multiplexing port corresponding to the target photodetector.

[0021] In a possible implementation, the above-mentioned target multiplexing port is connected to the target photodetector through a target optical splitter. The method of "adjusting the attenuation value of the tunable attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value" includes: using a target algorithm to calculate a target attenuation value according to the first detected optical power value, the second detected optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter; adjusting the attenuation value of the tunable attenuator to the target attenuation value. Wherein, the above-mentioned target algorithm is: A = P1 - 20 + P2 - 10lg(α1·α2); A is the target value, P1 is the first detected optical power value, P2 is the second detected optical power value, α1 is the splitting ratio of the target optical splitter, and α2 is the splitting ratio of the first optical splitter.

[0022] Wherein, the specific implementation manner of this port configuration method can refer to the behavioral functions of the control unit in the multiplexing / demultiplexing system provided in the first aspect or any possible design of the first aspect, and will not be repeated here. Therefore, this port configuration method can achieve the same beneficial effects as the first aspect or any possible design of the first aspect.

[0023] Second aspect, a port configuration method is provided. The port configuration method is applied to the multiplexer / demultiplexer system as described in the first aspect. The method includes: when N first signal light waves are input one-to-one to N multiplexing ports of the multiplexing unit of the multiplexer / demultiplexer system, obtaining the wavelengths of the N first signal light waves; configuring the wavelengths of the signal light waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexer / demultiplexer system according to the wavelengths of the N first signal light waves; respectively controlling each of the N second signal light waves to be output from a demultiplexing port with a matching wavelength; wherein, the above N second signal light waves are: the signal light waves obtained by demultiplexing the target signal light wave by the demultiplexing unit; the target signal light wave is: the signal light wave obtained by multiplexing the N first signal light waves by the multiplexing unit and output to the demultiplexing unit.

[0024] In a possible implementation, before the method of "configuring the wavelengths of the signal light waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexer / demultiplexer system according to the wavelengths of the N first signal light waves", the port configuration method provided by the embodiments of the present application further includes: obtaining the port identifiers of the N multiplexing ports; for each of the N multiplexing ports, determining a demultiplexing port that matches the port identifier of a multiplexing port; the method of "configuring the wavelengths of the signal light waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexer / demultiplexer system according to the wavelengths of the N first signal light waves" includes: for each of the N multiplexing ports, configuring the wavelength of the signal light wave that can pass through the demultiplexing port corresponding to a multiplexing port according to the wavelength of the first signal light wave corresponding to the multiplexing port.

[0025] In a possible implementation, before the method of "obtaining the wavelengths of the N first signal light waves", the port configuration method provided by the embodiments of the present application further includes: obtaining a first detection optical power value and a second detection optical power value; the first detection optical power value is: the detection optical power value obtained by the target photodetector detecting the first signal light wave corresponding to the target multiplexing port; the second detection optical power value is: the detection optical power value obtained by the second photodetector of the spectral scanning module of the control unit detecting the first signal light wave corresponding to the target multiplexing port; adjusting the attenuation value of the tunable attenuator of the spectral scanning module according to the first detection optical power value and the second detection optical power value; determining the wavelength of the first signal light wave corresponding to the target multiplexing port through the optical channel monitor of the spectral scanning module according to the optical wave parameters of the signal light wave output from the second output end of the first optical splitter; the optical wave parameters of the signal light wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the tunable attenuator. Wherein, the above target photodetector is: any one of the N first photodetectors of the control unit; the above target multiplexing port is: the multiplexing port corresponding to the target photodetector.

[0026] In a possible implementation, the above-mentioned target multiplexing port is connected to a target photodetector through a target optical splitter. The method of "adjusting the attenuation value of the variable optical attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value" includes: using a target algorithm to calculate a target attenuation value according to the first detected optical power value, the second detected optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter; and adjusting the attenuation value of the variable optical attenuator to the target attenuation value. Wherein, the above-mentioned target algorithm is: A = P1 - 20 + P2 - 10lg(α1·α2); A is the target value, P1 is the first detected optical power value, P2 is the second detected optical power value, α1 is the splitting ratio of the target optical splitter, and α2 is the splitting ratio of the first optical splitter.

[0027] In a third aspect, a port configuration device is provided. The port configuration device is applied to a multiplexing / demultiplexing system and can also be a functional module for implementing the method described in the second aspect or any possible design of the second aspect in the multiplexing / demultiplexing system. The port configuration device can implement the functions performed by the multiplexing / demultiplexing system in the above aspects or any possible designs. The functions can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. For example, the port configuration device includes an acquisition module and a processing module.

[0028] The acquisition module is configured to acquire the wavelengths of N first signal light waves when the N first signal light waves are input one by one to the N multiplexing ports of the multiplexing unit of the port configuration device. The processing module is configured to configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports of the demultiplexing unit of the port configuration device according to the wavelengths of the N first signal light waves acquired by the acquisition module; and respectively control each of the N second signal light waves to be output from a demultiplexing port with a matching wavelength. Wherein, the above-mentioned N second signal light waves are: the signal light waves obtained by demultiplexing a target signal light wave by the demultiplexing unit; the target signal light wave is: the signal light wave obtained by multiplexing the N first signal light waves by the multiplexing unit and output to the demultiplexing unit.

[0029] Wherein, the specific implementation manner of the port configuration device can refer to the behavior functions of the multiplexing / demultiplexing system in the port configuration method provided in the second aspect or any possible design of the second aspect, and will not be repeated here. Therefore, the provided port configuration device can achieve the same beneficial effects as the second aspect or any possible design of the second aspect.

[0030] In a possible implementation manner, the above-mentioned acquisition module is further configured to acquire the port identifiers of N multiplexing ports. The above-mentioned processing module is further configured to, for each of the N multiplexing ports, determine a demultiplexing port that matches the port identifier of one of the multiplexing ports acquired by the acquisition module. Specifically, the processing module is configured to, for each of the N multiplexing ports, configure the wavelength of the signal optical wave that can pass through the demultiplexing port corresponding to one multiplexing port according to the wavelength of the first signal optical wave corresponding to the multiplexing port.

[0031] In a possible implementation manner, the above-mentioned acquisition module is further configured to acquire a first detected optical power value and a second detected optical power value; the first detected optical power value is the detected optical power value obtained by detecting the first signal optical wave corresponding to the target multiplexing port by the target photodetector; the second detected optical power value is the detected optical power value obtained by detecting the first signal optical wave corresponding to the target multiplexing port by the second photodetector of the spectral scanning module of the control unit. The above-mentioned processing module is further configured to adjust the attenuation value of the tunable attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value acquired by the acquisition module; and determine the wavelength of the first signal optical wave corresponding to the target multiplexing port through the optical channel monitor of the spectral scanning module according to the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter; the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the tunable attenuator. Wherein, the above-mentioned target photodetector is any one of the N first photodetectors of the control unit; the above-mentioned target multiplexing port is the multiplexing port corresponding to the target photodetector.

[0032] In a possible implementation manner, the above-mentioned target multiplexing port is connected to the above-mentioned target photodetector through a target optical splitter. Specifically, the processing module is configured to calculate a target attenuation value by using a target algorithm according to the first detected optical power value, the second detected optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter; and adjust the attenuation value of the tunable attenuator to the target attenuation value. Wherein, the above-mentioned target algorithm is: A = P1 - 20 + P2 - 10lg(α1·α2); A is the target value, P1 is the first detected optical power value, P2 is the second detected optical power value, α1 is the splitting ratio of the target optical splitter, and α2 is the splitting ratio of the first optical splitter.

[0033] Fourthly, a port configuration device is provided. The port configuration device can be a multiplexer / demultiplexer system or a chip or system-on-chip in the multiplexer / demultiplexer system. The port configuration device can implement the functions performed by the multiplexer / demultiplexer system in the above aspects or each possible design. The functions can be implemented by hardware. For example, in a possible design, the port configuration device can include a processor and a communication interface. The processor can be used to support the port configuration device in implementing the functions involved in the second aspect or any possible design of the second aspect.

[0034] In another possible implementation, the port configuration device may further include a memory for storing the necessary computer-executable instructions and data of the port configuration device. When the port configuration device runs, the processor executes the computer-executable instructions stored in the memory, so that the port configuration device executes the port configuration method described in the second aspect or any possible design of the second aspect.

[0035] Fifthly, a port configuration device is provided. The port configuration device can be a multiplexer / demultiplexer system or a chip or system-on-chip in the multiplexer / demultiplexer system. The port configuration device can implement the functions performed by the multiplexer / demultiplexer system in the above aspects or each possible design. The functions can be implemented by hardware. For example, in a possible design, the port configuration device can include a processor and a communication interface. The processor can be used to support the port configuration device in implementing the functions involved in the second aspect or any possible design of the second aspect.

[0036] In another possible design, the port configuration device may further include a memory for storing the necessary computer-executable instructions and data of the port configuration device. When the port configuration device runs, the processor executes the computer-executable instructions stored in the memory, so that the port configuration device executes the port configuration method described in the second aspect or any possible design of the second aspect.

[0037] Sixthly, a computer-readable storage medium is provided. The computer-readable storage medium can be a readable non-volatile storage medium. The computer-readable storage medium stores computer instructions or programs. When it runs on a computer, it enables the computer to execute the port configuration method described in the second aspect or any possible design of the above aspect.

[0038] Seventhly, a computer program product containing instructions is provided. When it runs on a computer, it enables the computer to execute the port configuration method described in the second aspect or any possible design of the above aspect.

[0039] In an eighth aspect, a port configuration device is provided. The port configuration device may be a multiplexer / demultiplexer system, a chip, or a system-on-chip in a multiplexer / demultiplexer system. The port configuration device includes one or more processors and one or more memories. The one or more memories are coupled to the one or more processors. The one or more memories are configured to store computer program code, and the computer program code includes computer instructions. When the one or more processors execute the computer instructions, the port configuration device is caused to perform the port configuration method described in the second aspect or any possible design of the second aspect as above.

[0040] In a ninth aspect, a chip system is provided. The chip system includes a processor and a communication interface. The chip system can be used to implement the functions performed by the multiplexer / demultiplexer system in the second aspect or any possible design of the second aspect as above. In a possible design, the chip system further includes a memory configured to store program instructions and / or data. The chip system may be composed of chips or may include chips and other discrete devices, without limitation.

[0041] Among them, the technical effects brought by any one of the design manners from the second aspect to the ninth aspect can be referred to the technical effects brought by the first aspect as above, and will not be elaborated herein. Description of the Drawings

[0042] Figure 1 Schematic diagram of the panel of the multiplexer / demultiplexer in the related art;

[0043] Figure 2 Schematic diagram of the structure of the multiplexer / demultiplexer system provided in an embodiment of the present application;

[0044] Figure 3 Schematic diagram of the structure of the control unit of the multiplexer / demultiplexer system provided in an embodiment of the present application;

[0045] Figure 4 Schematic diagram of the structure of the control unit of the multiplexer / demultiplexer system provided in an embodiment of the present application;

[0046] Figure 5 Schematic diagram of the structure of the control unit of the multiplexer / demultiplexer system provided in an embodiment of the present application;

[0047] Figure 6 Schematic diagram of the structure of the control unit of the multiplexer / demultiplexer system provided in an embodiment of the present application;

[0048] Figure 7 Schematic diagram of the structure of the spectral scanning module of the control unit of the multiplexer / demultiplexer system provided in an embodiment of the present application;

[0049] Figure 8One of the schematic structural diagrams of the multiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0050] Figure 9 Another schematic structural diagram of the multiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0051] Figure 10 Another schematic structural diagram of the multiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0052] Figure 11 Another schematic structural diagram of the multiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0053] Figure 12 One of the schematic structural diagrams of the demultiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0054] Figure 13 Another schematic structural diagram of the demultiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0055] Figure 14 Another schematic structural diagram of the demultiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0056] Figure 15 Another schematic structural diagram of the demultiplexing unit of the multiplexing / demultiplexing system provided by the embodiment of the present application;

[0057] Figure 16 One of the schematic flow diagrams of the port configuration method provided by the embodiment of the present application;

[0058] Figure 17 Another schematic flow diagram of the port configuration method provided by the embodiment of the present application;

[0059] Figure 18 Schematic structural diagram of the port configuration device provided by the embodiment of the present application. Detailed implementation manners

[0060] To enable those of ordinary skill in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0061] It should be noted that the terms "first", "second", etc. in the description, claims, and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described here can be implemented in an order other than those illustrated or described here. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are only examples of devices and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0062] It should also be understood that the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, and / or components.

[0063] As in the background art, in a wavelength division multiplexing transmission system, generally at least include a terminal site A (such as the system sending end), a terminal site B (such as the system receiving end), and a transmission optical fiber L. Terminal site A and terminal site B at least include a switch, a multiplexer / demultiplexer, and an optical module. The optical module is inserted on the switch. Each optical module emits a signal light wave of a specific wavelength from its light emitting port, and is connected to the multiplexing port MUX of the corresponding wavelength of the multiplexer / demultiplexer through an optical fiber (each multiplexing port is represented by a transmit port (TransmitX, Tx) respectively). The light receiving port of the optical module is also connected to the corresponding demultiplexing port DEMUX (each demultiplexing port is represented by a receive port (ReceiveX, Rx) respectively). Each optical module is connected in this way. After the connection, the signal light waves emitted by the optical modules in each channel will enter the multiplexer / demultiplexer of terminal site A from different multiplexing ports, and the multiplexer / demultiplexer of terminal site A will multiplex the signal light waves into a single signal light wave, and then, come out from the signal output port (M-COM) of the multiplexer / demultiplexer of terminal site A, so as to enter the signal input port (D-COM) of the multiplexer / demultiplexer of terminal site B. Furthermore, the multiplexer / demultiplexer of terminal site B can demultiplex the single signal light wave to obtain signal light waves of different wavelengths, and control the signal light waves of different wavelengths to be output from different demultiplexing ports of the multiplexer / demultiplexer of terminal site B to different receivers. Figure 1 Schematically shows the panel schematic diagram of a multiplexer / demultiplexer in the related art. The multiplexing ports (labeled Mux) and demultiplexing ports (labeled Demux) are noted on the panel. The multiplexing ports and demultiplexing ports are used in pairs, and each pair of ports clearly specifies the wavelength of the signal light wave that can pass through (such as 1550 nanometers nm, 1552 nm, 1553 nm, 1555 nm, etc.). However, when using such as Figure 1When using the multiplexer / demultiplexer shown, it is necessary to carefully check whether the wavelength of the signal light wave matches the multiplexing / demultiplexing ports. And if the wavelength of the signal light wave is unknown, it is also necessary to first measure the wavelength of the signal light wave and then match the multiplexing port and / or demultiplexing port of the multiplexer / demultiplexer. The applicant found that the use of this multiplexer / demultiplexer is very cumbersome, and during system debugging, it is necessary to frequently plug and unplug the optical fiber connected to the multiplexer / demultiplexer to confirm whether the signal light wave is normal. Each time the optical fiber is unplugged and reconnected, it is necessary to check the matching of the multiplexing / demultiplexing port and the wavelength of the signal light wave. Therefore, the transmission efficiency of the wavelength division multiplexing transmission system is relatively low.

[0064] In view of this, an embodiment of the present application provides a multiplexing / demultiplexing system for improving the transmission efficiency of a wavelength division multiplexing transmission system. The multiplexing / demultiplexing system includes: a multiplexing unit, which includes N multiplexing ports and an optical wave output port; the multiplexing unit is used to multiplex N first signal light waves input one-to-one through the N multiplexing ports and output the target signal light wave obtained by multiplexing through the optical wave output port; a demultiplexing unit, which includes N demultiplexing ports and an optical wave input port; the optical wave input port is connected to the optical wave output port; the demultiplexing unit is used to demultiplex the target signal light wave received by the optical wave input port to obtain N second signal light waves; each of the N second signal light waves corresponds to one first signal light wave; a control unit, which is connected to the multiplexing unit and the demultiplexing unit; the control unit is used to configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports according to the wavelengths of the N first signal light waves, and respectively control each second signal light wave to be output through a demultiplexing port with a matching wavelength; where N is a positive integer greater than 1.

[0065] Based on the above solution, the control unit can obtain the wavelengths of the N first signal light waves input one-to-one through the N multiplexing ports, and configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports according to the wavelengths of the N first signal light waves, so as to respectively control each second signal light wave to be output through a demultiplexing port with a matching wavelength, rather than specifying the wavelengths of the signal light waves that can pass through each multiplexing port and each demultiplexing port. Therefore, during the use of the wavelength division multiplexing transmission system, there is no need to check whether the wavelength of the signal light wave matches the wavelength of the signal light wave that can pass through the multiplexing port (and / or demultiplexing port), thereby improving the transmission efficiency of the wavelength division multiplexing transmission system.

[0066] The multiplexing / demultiplexing system, port configuration method, device, and computer-readable storage medium provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings of the specification.

[0067] Figure 2 The possible structural schematic diagram of the multiplexing / demultiplexing system provided by the embodiment of the present application is shown, such as Figure 2As shown in the figure, the multiplexer / demultiplexer system includes: a multiplexing unit 10, which includes N multiplexing ports 11 and an optical wave output port M-COM; the multiplexing unit 10 is configured to multiplex N first signal optical waves input one by one to the N multiplexing ports 11, and output the target signal optical wave obtained by multiplexing through the optical wave output port M-COM. A demultiplexing unit 20, which includes N demultiplexing ports 21 and an optical wave input port D-COM; the optical wave input port D-COM is connected to the optical wave output port M-COM; the demultiplexing unit 20 is configured to demultiplex the target signal optical wave received by the optical wave input port D-COM to obtain N second signal optical waves; each of the N second signal optical waves corresponds to one first signal optical wave. A control unit 30, which is connected to the multiplexing unit 10 and the demultiplexing unit 20; the control unit 30 is configured to configure the wavelengths of the signal optical waves that can pass through the N demultiplexing ports 21 according to the wavelengths of the N first signal optical waves, and respectively control each second signal optical wave to be output from a demultiplexing port 21 with a matching wavelength; where N is a positive integer greater than 1.

[0068] In a possible implementation, the above N multiplexing ports 11 may specifically include 48 multiplexing ports, such as multiplexing port T1 to multiplexing port T48. The wavelength range of the signal optical waves that can pass through each of the N multiplexing ports 11 is 1528 nm to 1568 nm, and the wavelength interval between each of the N multiplexing ports 11 for the signal optical waves that can pass through can be 100 gigahertz GHz (i.e., 0.8 nm).

[0069] In a possible implementation, the N multiplexing ports 11 may be respectively connected to N first optical modules in one-to-one correspondence, so that each first optical module can input a first signal optical wave to a multiplexing port 11.

[0070] In a possible implementation, the wavelengths of each of the above N first signal optical waves are different, or the wavelengths of some of the first signal optical waves are different.

[0071] In a possible implementation, at least one coupler is provided between the N multiplexing ports 11 and the optical wave output port M-COM, so that the multiplexing unit 10 can multiplex the N first signal optical waves through the at least one coupler to obtain the target signal optical wave.

[0072] In an example, at least two couplers are provided between the N multiplexing ports 11 and the optical wave output port M-COM. The input ends of some of the at least two couplers are connected to the N multiplexing ports 11, and the output ends are connected to the output ends of the other part of the couplers, and the output ends of the other part of the couplers are connected to the optical wave output port M-COM.

[0073] Among them, for each of a part of the at least two couplers, the input end of one coupler can be connected to X multiplexing ports 11, and the output end is connected to one coupler in the other part of the couplers, where X is a positive integer.

[0074] In a possible implementation, the optical wave output port M-COM can be connected to the optical wave input port D-COM through an optical fiber.

[0075] In a possible implementation, the above-mentioned N demultiplexing ports 21 can specifically include 48 demultiplexing ports, such as demultiplexing port R1 to demultiplexing port R48. The wavelength range of the signal optical wave that can pass through each of the N demultiplexing ports 21 is 1528 nm to 1568 nm, and the wavelength interval of the signal optical wave that can pass through each demultiplexing port 21 can be 100 GHz (i.e., 0.8 nm).

[0076] In a possible implementation, a coupler is provided between the N demultiplexing ports 21 and the optical wave input port D-COM, so that the demultiplexing unit 20 can demultiplex the target signal optical wave through this coupler to obtain N second signal optical waves.

[0077] In a possible implementation, the wavelengths of each of the above-mentioned N second signal optical waves are different, or the wavelengths of some of the second signal optical waves are different. Among them, the wavelength of each second signal optical wave can be the same as the wavelength of the corresponding first signal optical wave.

[0078] In a possible implementation, when the N first signal optical waves enter the N multiplexing ports 11, the control unit 30 can obtain the wavelengths of the N first signal optical waves, so that the control unit 30 can configure the wavelengths of the signal optical waves that can pass through the N demultiplexing ports 21.

[0079] Specifically, when the N first signal optical waves enter the N multiplexing ports 11, the control unit 30 can also obtain the port identifiers of the N multiplexing ports 11, and for each of the N multiplexing ports 11, determine a demultiplexing port 21 that matches the port identifier (such as the port number) of one multiplexing port 11; thus, the control unit 30 can configure the wavelength of the signal optical wave that can pass through the corresponding demultiplexing port 21 according to the wavelength of the first signal optical wave corresponding to this one multiplexing port 11.

[0080] In an example, for each of the N multiplexing ports 11, the control unit 30 can configure the wavelength of the first signal optical wave corresponding to one multiplexing port 11 as the wavelength of the signal optical wave that can pass through the corresponding demultiplexing port 21.

[0081] In another example, for each multiplexing port 11 among the N multiplexing ports 11, the control unit 30 may first adjust the value of a certain module in the control unit 30 (for example, the attenuation value of the adjustable attenuator in the following embodiments), so that the wavelength of the first optical signal wave corresponding to one multiplexing port 11 obtained by the control unit 30 changes. Thus, the control unit 30 may configure the changed wavelength of the first optical signal wave corresponding to this one multiplexing port 11 as the wavelength of the signal optical wave that can pass through the corresponding one demultiplexing port 21.

[0082] In a possible implementation, after configuring the wavelengths of the signal optical waves that can pass through the N demultiplexing ports, the control unit 30 may provide channel resources to the N demultiplexing ports according to the wavelengths of the signal optical waves that can pass through the N demultiplexing ports, so as to control each second optical signal wave to be output from a demultiplexing port with a matching wavelength.

[0083] In the multiplexing and demultiplexing system provided by the embodiments of the present application, the control unit may obtain the wavelengths of the N first optical signal waves input corresponding to the N multiplexing ports one by one, and configure the wavelengths of the signal optical waves that can pass through the N demultiplexing ports according to the wavelengths of the N first optical signal waves, so as to control each second optical signal wave to be output from a demultiplexing port with a matching wavelength respectively, rather than specifying the wavelengths of the signal optical waves that can pass through each multiplexing port and each demultiplexing port. Therefore, during the use of the wavelength division multiplexing transmission system, there is no need to check whether the wavelength of the signal optical wave matches the wavelength of the signal optical wave that can pass through the multiplexing port (and / or demultiplexing port), thereby improving the transmission efficiency of using the wavelength division multiplexing transmission system.

[0084] Moreover, since the multiplexing port (and / or demultiplexing port) can be decoupled from the wavelength of the signal optical wave, it is possible to avoid frequent plugging and unplugging between the optical fiber and the multiplexing unit 10 (and / or demultiplexing unit 20), thereby reducing the failures of the wavelength division multiplexing transmission system and ensuring the quality of communication signals.

[0085] In a possible implementation, the control unit 30 may be composed of multiple modules. Specifically, in combination with Figure 2 , as Figure 3 shown, the above-mentioned control unit 30 includes: N first photodetectors 35, and each of the N first photodetectors 35 among the N first photodetectors 35 is respectively connected to one multiplexing port 11; each first photodetector 35 is used to detect whether a first optical signal wave is input to the corresponding multiplexing port 11; a spectral scanning module 34, and the spectral scanning module 34 can be connected to the N multiplexing ports 11; a controller 31, and the controller 31 is connected to the N first photodetectors 35 and the spectral scanning module 34.

[0086] In the embodiment of the present application, the controller 31 is configured to control the spectral scanning module 34 to be connected to the target multiplexing port and control the spectral scanning module 34 to scan and obtain the wavelength of the first signal light wave output from the target multiplexing port when the target photodetector detects that the first signal light wave is input to the target multiplexing port; the target photodetector is any one of the N first photodetectors; the target multiplexing port is the multiplexing port corresponding to the target photodetector.

[0087] It can be seen that since the controller can control the N first photodetectors to detect whether the first signal light wave is input to the N multiplexing ports, and when the first signal light wave is input to the N multiplexing ports, the controller can control the spectral scanning module to scan and obtain the wavelengths of the N first signal light waves without debugging, the efficiency of obtaining the wavelength of the first signal light wave entering the multiplexing port can be improved.

[0088] In a possible implementation manner, each of the N first photodetectors 35 in the N first photodetectors 35 can be directly connected to a multiplexing port 11, or each of the first photodetectors 35 can be connected to a multiplexing port 11 through a splitter.

[0089] In a possible implementation manner, the N first photodetectors 35 can be connected to the controller 31 through switches. Specifically, the control unit 30 further includes: M analog switches 32, the M analog switches 32 are connected to the N first photodetectors 35 and the controller 31, and each of the M analog switches 32 corresponds to at least one first photodetector 35; M is a positive integer.

[0090] In one example, in combination with Figure 3 , as Figure 4 shown, the M analog switches 32 can specifically be 1 analog switch 32, and the 1 analog switch 32 can be connected to 48 first photodetectors 35.

[0091] In another example, in combination with Figure 3 , as Figure 5 shown, the M analog switches 32 can specifically be 3 analog switches 32, and each analog switch 32 can be connected to 16 first photodetectors 35.

[0092] In the embodiment of the present application, the controller 31 is further configured to control each analog switch 32 to be sequentially connected to the corresponding first photodetector 35.

[0093] It can be understood that the controller 31 can control each analog switch 32 to be connected to the corresponding first photodetector 35 in turn, so that the controller 31 can continuously poll the output values of each photodetector 35 to determine whether the first signal light wave is input to the multiplexing port 11 corresponding to each analog switch 32.

[0094] Thus, it can be known that since the controller can control M analog switches to be connected to the corresponding first photodetectors in turn, so that the spectral scanning module can sequentially scan the wavelengths of the first signal light waves output from the M multiplexing ports without setting up multiple spectral scanning modules, the usage cost can be reduced.

[0095] Moreover, since more analog switches can be set (i.e., M is greater than 2) to poll the output values of multiple first photodetectors simultaneously through more analog switches, the polling efficiency of the first photodetectors can be improved.

[0096] In a possible implementation, the spectral scanning module 34 can be directly connected to a multiplexing port 11, or the spectral scanning module 34 can be connected to a multiplexing port 11 through a splitter.

[0097] In a possible implementation, the spectral scanning module 34 can be connected to N multiplexing ports 11 through a switch. Specifically, in combination with Figure 3 , as Figure 6 shown, the above control unit 30 further includes: a control optical switch 33, which includes N moving terminals and a fixed terminal d. Each of the N moving terminals is connected to a multiplexing port 11, and the fixed terminal d is connected to the spectral scanning module 34; the control optical switch 33 is also connected to the controller 31.

[0098] In a possible implementation, the control optical switch 33 can specifically be a 1*48 optical switch. It can be understood that the N moving terminals can specifically be 48 moving terminals, such as moving terminals d1 to d48.

[0099] In the embodiment of the present application, the controller 31 is specifically configured to control the target moving terminal to be connected to the fixed terminal d when the target photodetector detects that the first signal light wave is input to the target multiplexing port; the target moving terminal is: among the N moving terminals, the moving terminal corresponding to the target multiplexing port.

[0100] It can be understood that when the target photodetector detects that the first signal light wave is input to the target multiplexing port, the controller 31 can control the target moving terminal to be connected to the fixed terminal d, that is, the spectral scanning module 34 is connected to the target multiplexing port, so that the controller 31 can control the spectral scanning module 34 to scan the wavelength of the first signal light wave output from the target multiplexing port.

[0101] It can be seen that since the controller can control the connection between the target moving end and the fixed end d when the target optical detector detects the target multiplexing port, so as to scan the wavelength of the first signal light wave corresponding to the target multiplexing port and obtain the wavelengths of N first signal light waves, without the need to set up multiple spectral scanning modules, the usage cost can be reduced.

[0102] In a possible implementation, in combination with Figure 3 , as Figure 7 shown, the above-mentioned spectral scanning module 34 includes: an adjustable attenuator 341; a first optical splitter 342, the input end of the first optical splitter 342 is connected to the adjustable attenuator 341; a second photodetector 343, the second photodetector 343 is connected to the first output end of the first optical splitter 342; an optical channel monitor 344, the optical channel monitor 344 is connected to the second output end of the first optical splitter 342.

[0103] In the embodiment of the present application, the above-mentioned adjustable attenuator 341 is used to adjust the attenuation value of the adjustable attenuator 341 based on the detected optical power values detected by the target photodetector and the second photodetector.

[0104] It can be understood that the adjustable attenuator 341 can adjust the attenuation value of the adjustable attenuator 341 to adjust the optical power value of the signal light wave input to the spectral scanning module 34.

[0105] It should be noted that the description of the adjustable attenuator 341 adjusting the attenuation value of the adjustable attenuator 341 can refer to the specific description in the following embodiments, and the embodiments of the present application will not be elaborated here.

[0106] In the embodiment of the present application, the above-mentioned optical channel monitor 344 is used to determine the wavelength of the first signal light wave corresponding to the target multiplexing port according to the optical wave parameters of the signal light wave output from the second output end of the first optical splitter 342; the optical wave parameters of the signal light wave output from the second output end of the first optical splitter 342 are associated with the adjusted attenuation value of the adjustable attenuator 341.

[0107] In a possible implementation, the above-mentioned optical wave parameters may include at least one of the following: center frequency, spectral width.

[0108] In a possible implementation, after the optical channel monitor 344 determines the wavelength of the first signal light wave corresponding to the target multiplexing port, it can feedback the wavelength of the first signal light wave corresponding to the target multiplexing port to the controller 31.

[0109] In the embodiments of the present application, since the adjustable attenuator 341 can adjust the attenuation value of the adjustable attenuator 341, the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter 342 may not be the same as those of the signal optical wave input to the input spectral scanning module 34 (i.e., the first signal optical wave corresponding to the target multiplexing port). Therefore, the wavelength of the first signal optical wave corresponding to the target multiplexing port may also be different from the wavelength of the passable signal optical wave of the demultiplexing port corresponding to the target multiplexing port.

[0110] It can be seen that since the optical channel monitor can determine the wavelength of the first signal optical wave corresponding to the target multiplexing port according to the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter, and the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the adjustable attenuator, it is possible to adjust the attenuation value of the adjustable attenuator so that the wavelength of the first signal optical wave corresponding to the target multiplexing port is different from the wavelength of the passable signal optical wave of the demultiplexing port corresponding to the target multiplexing port, thereby achieving the effect of adaptively adjusting the wavelength of the passable signal optical wave of the demultiplexing port.

[0111] In a possible implementation, a coupler may be provided between the N multiplexing ports 11 and the optical wave output port M-COM. Specifically, in combination with Figure 2 , as Figure 8 shown, the above multiplexing unit 10 further includes: a first coupler 12, the input end of the first coupler 12 is connected to the N multiplexing ports 11, and the output end is connected to the optical wave output port M-COM; the first coupler 12 is used to multiplex the N first signal optical waves to obtain a target signal optical wave.

[0112] It can be seen that since the N first signal optical waves can be multiplexed by the first coupler, the optical loss in the multiplexing process can be reduced.

[0113] In a possible implementation, multiple couplers may be provided between the N multiplexing ports 11 and the optical wave output port M-COM. Specifically. In combination with Figure 8 , as Figure 9 shown, the above multiplexing unit 10 further includes: Q second couplers 15, the input end of each of the Q second couplers 15 is connected to at least one of the N multiplexing ports 11, and the output end of each second coupler 15 is connected to the first coupler 12; each second coupler 15 is used to multiplex the N first signal optical waves and transmit the multiplexed signal optical wave to the first coupler 12 for multiplexing, where Q is a positive integer greater than 1.

[0114] It can be seen that since multiple second couplers can be set to multiplex N first signal light waves through the multiple second couplers and the first coupler, rather than multiplexing N first signal light waves through one coupler, a coupler with relatively low coupling performance can be selected as the second coupler (and / or) the first coupler instead of a coupler with relatively high coupling performance, thereby reducing the usage cost.

[0115] In a possible implementation, in combination with Figure 8 , such as Figure 10 shown, the above multiplexing unit 10 further includes: N second optical splitters 13. The input end of each of the N second optical splitters 13 is connected to a multiplexing port 11. The first output end of each second optical splitter 13 is connected to a first photodetector 35 of the control unit 30. The second output end of each second optical splitter 13 is connected to a moving end of a control optical switch 33 of the control unit 30. The third output end of each second optical splitter 13 is connected to the first coupler 12.

[0116] It can be understood that for each of the N second optical splitters 13, one second optical splitter 13 can be a three-way optical splitter. The one second optical splitter 13 can split one first signal light wave input from a multiplexing port 11 into three paths. One path enters a first photodetector 35, one path is used to connect to a moving end of the optical switch 33, and the other path is used to be transmitted to the demultiplexing unit 20.

[0117] In a possible implementation, the splitting ratio of each second optical splitter 13 can specifically be 1:99.

[0118] It can be seen that since N second optical splitters can be set in the multiplexing unit to split N first signal light waves through the N second optical splitters, the splitting ratios of the N second optical splitters can be set to reduce the optical loss during the process of transmitting the signal light waves.

[0119] In a possible implementation, in combination with Figure 8 , such as Figure 11 shown, the above multiplexing unit 10 further includes: N third optical splitters 131. The input end of each of the N third optical splitters 131 is connected to a multiplexing port 11. The first output end of each third optical splitter 131 is connected to a first photodetector 35 of the control unit 30; N fourth optical splitters 132. The input end of each of the N fourth optical splitters 132 is connected to the second output end of a third optical splitter 131. The first output end of each fourth optical splitter 132 is connected to a moving end of a control optical switch 33 of the control unit 30. The second output end of each fourth optical splitter 132 is connected to the first coupler 12.

[0120] It can be understood that for each of the N third optical splitters 131, a third optical splitter 131 can be a splitter that divides a signal into two paths. This third optical splitter 131 can split a first signal light wave input from a multiplexing port 11 into two paths, one path enters a first photodetector 35, and the other path is used to be transmitted to a fourth optical splitter 132.

[0121] For each of the N fourth optical splitters 132, a fourth optical splitter 132 can be a splitter that divides a signal into two paths. This fourth optical splitter 132 can split the signal light wave input from a third optical splitter 131 into two paths, one path is used to connect to a moving end of an optical switch 33, and the other path is used to be transmitted to a demultiplexing unit 20.

[0122] In a possible implementation, the splitting ratio of each third optical splitter 131 can be specifically 1:99; the splitting ratio of each fourth optical splitter 132 can be specifically 1:99.

[0123] Thus, it can be known that since N third optical splitters and N fourth optical splitters can be arranged in the multiplexing unit to split N first signal light waves through the N third optical splitters and N fourth optical splitters, that is, to split N first signal light waves through multiple splitters that divide a signal into two paths instead of selecting multiple splitters that divide a signal into three paths, the usage cost can be reduced.

[0124] In a possible implementation, in combination with Figure 2 , as Figure 12 shown, the above demultiplexing unit 20 further includes: a third coupler 22, an input end of the third coupler 22 is connected to an optical wave input port D-COM, and an output end is connected to N demultiplexing ports 21; the third coupler 22 is configured to demultiplex a target signal light wave to obtain N second signal light waves.

[0125] Thus, it can be known that since N first signal light waves can be demultiplexed through the third coupler, the optical loss during the demultiplexing process can be reduced.

[0126] In a possible implementation, in combination with Figure 2 , as Figure 13 shown, the above demultiplexing unit 20 further includes: T wavelength selection switches 23, the T wavelength selection switches 23 are connected to the N demultiplexing ports 21, a control unit 30, and the optical wave input port D-COM, and each wavelength selection switch 23 in the T wavelength selection switches 23 corresponds to at least one demultiplexing port 21; T is a positive integer.

[0127] In an example, in combination with Figure 13 , asFigure 14 As shown, the T wavelength selection switches 23 may specifically be 1 wavelength selection switch 23, and this 1 wavelength selection switch 23 may be connected to 48 demultiplexing ports 21.

[0128] In another example, in combination with Figure 13 , such as Figure 15 shown, the T wavelength selection switches 23 may specifically be 2 wavelength selection switches 23, and each wavelength selection switch 23 may be connected to 24 demultiplexing ports 21.

[0129] In the embodiments of the present application, the control unit 30 is specifically configured to control each wavelength selection switch 23 to configure the wavelengths of the signal light waves that can pass through the corresponding demultiplexing ports 21 according to the wavelengths of the N first signal light waves.

[0130] In a possible implementation manner, after each wavelength selection switch 23 configures the wavelengths of the signal light waves that can pass through the corresponding demultiplexing ports 21, each wavelength selection switch 23 may also respectively establish channel resources between the third coupler 22 and the corresponding demultiplexing port 21, so that each second signal light wave is output from a demultiplexing port 21 with a matching wavelength.

[0131] In a possible implementation manner, after each wavelength selection switch respectively establishes channel resources between the third coupler 22 and the corresponding demultiplexing port 21, when the control unit 30 determines that no signal light wave is input to the N multiplexing ports 11, the control unit 30 may control the T wavelength selection switches 23 to release the channel resources between the third coupler 22 and the corresponding demultiplexing port 21.

[0132] Thus, it can be seen that since the control unit can configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports through the T wavelength selection switches, the efficiency of configuring the wavelengths of the signal light waves that can pass through the N demultiplexing ports can be improved.

[0133] The embodiments of the present application also provide a port configuration method. As Figure 16 shown, this method may include step 101 to step 103.

[0134] Step 101: In the case where N first signal light waves are input one by one to the N multiplexing ports of the multiplexing and demultiplexing system, the multiplexing and demultiplexing system acquires the wavelengths of the N first signal light waves.

[0135] In a possible implementation manner, the multiplexing and demultiplexing system may acquire the wavelengths of the N first signal light waves through the control unit of the multiplexing and demultiplexing system.

[0136] It should be noted that the description of the control unit acquiring the wavelengths of the N first signal light waves can refer to the specific description in the above embodiments, and the embodiments of the present application will not elaborate herein.

[0137] Step 102: The multiplexer / demultiplexer system configures the wavelengths of the signal light waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexer / demultiplexer system according to the wavelengths of the N first signal light waves.

[0138] In one example, for each multiplexing port among the N multiplexing ports, the control unit of the multiplexer / demultiplexer system may configure the wavelength of the first signal light wave corresponding to one multiplexing port as the wavelength of the signal light wave that can pass through the corresponding demultiplexing port.

[0139] In another example, for each multiplexing port among the N multiplexing ports, the control unit of the multiplexer / demultiplexer system may first adjust the value of a certain module in the control unit (such as the attenuation value of an adjustable attenuator) so that the wavelength of the first signal light wave corresponding to one multiplexing port obtained by the control unit changes. Then, the control unit may configure the changed wavelength of the first signal light wave corresponding to this one multiplexing port as the wavelength of the signal light wave that can pass through the corresponding demultiplexing port.

[0140] In one possible implementation, in combination with Figure 16 , such as Figure 17 shown, before the above-mentioned step 102, the port configuration method provided by the embodiments of the present application may further include the following step 201 and step 202, and the above-mentioned step 102 may be specifically implemented by the following step 102a.

[0141] Step 201: The multiplexer / demultiplexer system obtains the port identifiers of the N multiplexing ports.

[0142] In one possible implementation, the multiplexer / demultiplexer system may obtain the port identifiers of the N multiplexing ports through the control unit.

[0143] Wherein, the above-mentioned port identifier may specifically be a port number.

[0144] Step 202: For each multiplexing port among the N multiplexing ports, the multiplexer / demultiplexer system determines a demultiplexing port that matches the port identifier of one multiplexing port.

[0145] In one possible implementation, for each multiplexing port among the N multiplexing ports, the multiplexer / demultiplexer system may use multiple association relationships to determine a demultiplexing port that matches the port identifier of one multiplexing port. Wherein, each association relationship is an association relationship between a first port identifier and a second port identifier.

[0146] Specifically, for each of the N multiplexing ports, the multiplexing and demultiplexing system can determine, from multiple first port identifiers in multiple association relationships, a first port identifier that is the same as the port identifier of a multiplexing port, and then determine a second port identifier associated with the first port identifier. Thus, the multiplexing and demultiplexing system can determine a demultiplexing port whose port identifier is the same as the second port identifier as a demultiplexing port that matches the port identifier of the multiplexing port.

[0147] Step 102a: For each of the N multiplexing ports, the multiplexing and demultiplexing system configures the wavelength of the signal optical wave that can pass through the demultiplexing port corresponding to a multiplexing port according to the wavelength of the first signal optical wave corresponding to the multiplexing port.

[0148] As can be seen, since the multiplexing and demultiplexing system can configure the wavelength of the signal optical wave that can pass through the demultiplexing port corresponding to each multiplexing port according to the wavelength of the first signal optical wave corresponding to each multiplexing port, during system debugging, the wavelength of the signal optical wave that can pass through each demultiplexing port can be directly determined without checking the matching of the wavelengths of the multiplexing and demultiplexing ports and the signal optical wave.

[0149] Step 103: The multiplexing and demultiplexing system controls each of the N second signal optical waves to be output from a demultiplexing port with a matching wavelength.

[0150] In the embodiment of the present application, the above N second signal optical waves are: the signal optical waves obtained by demultiplexing the target signal optical wave by the demultiplexing unit; the target signal optical wave is: the signal optical wave obtained by multiplexing N first signal optical waves by the multiplexing unit and output to the demultiplexing unit.

[0151] For the port configuration method provided in the embodiment of the present application, the multiplexing and demultiplexing system can obtain the wavelengths of N first signal optical waves input corresponding to N multiplexing ports one by one, and configure the wavelengths of the signal optical waves that can pass through the N demultiplexing ports according to the wavelengths of the N first signal optical waves, so as to control each second signal optical wave to be output from a demultiplexing port with a matching wavelength, rather than specifying the wavelengths of the signal optical waves that can pass through each multiplexing port and each demultiplexing port. Therefore, during the use of the wavelength division multiplexing transmission system, it is not necessary to check whether the wavelengths of the signal optical wave and the wavelengths of the signal optical waves that can pass through the multiplexing port (and / or demultiplexing port) match, thereby improving the transmission efficiency of using the wavelength division multiplexing transmission system.

[0152] In a possible implementation, before the "the multiplexing and demultiplexing system obtains the wavelengths of N first signal optical waves" in the above step 101, the port configuration method provided in the embodiment of the present application may further include the following steps 301 to 303, and the above step 101 may be specifically implemented by the following step 101a.

[0153] Step 301, the multiplexer / demultiplexer system obtains a first detected optical power value and a second detected optical power value.

[0154] In the embodiments of the present application, the above-mentioned first detected optical power value is: the detected optical power value obtained by a target photodetector detecting a first signal optical wave corresponding to a target multiplexing port; the above-mentioned second detected optical power value is: the detected optical power value obtained by a second photodetector of the spectral scanning module of the control unit detecting the first signal optical wave corresponding to the target multiplexing port. The target photodetector is any one of N first photodetectors of the control unit; the target multiplexing port is the multiplexing port corresponding to the target photodetector.

[0155] In a possible implementation manner, the control unit may control the target analog switch to be connected to the target photodetector, so that the control unit can obtain the first detected optical power value through the target photodetector.

[0156] In a possible implementation manner, the control unit may control the target moving end of the control optical switch to be connected to the fixed end, so that the control unit can obtain the second detected optical power value through the second photodetector.

[0157] Step 302, the multiplexer / demultiplexer system adjusts the attenuation value of the tunable attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value.

[0158] In a possible implementation manner, the multiplexer / demultiplexer system may calculate by using the first detected optical power value and the second detected optical power value through the control unit to obtain an attenuation value, so that the control unit can adjust the attenuation value of the tunable attenuator of the spectral scanning module according to the obtained attenuation value.

[0159] In a possible implementation manner, the above-mentioned target multiplexing port is connected to the target photodetector through a target optical splitter. Specifically, the above-mentioned step 302 may be specifically implemented by the following steps 302a and 302b.

[0160] Step 302a, the multiplexer / demultiplexer system uses a target algorithm to calculate a target attenuation value according to the first detected optical power value, the second detected optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter.

[0161] In the embodiments of the present application, the above-mentioned target algorithm is:

[0162] A = P1 - 20 + P2 - 10lg(α1·α2);

[0163] A is the target value, P1 is the first detected optical power value, P2 is the second detected optical power value, α1 is the splitting ratio of the target optical splitter, and α2 is the splitting ratio of the first optical splitter.

[0164] It can be understood that since there is an insertion loss between the input from the target multiplexing port to the optical channel monitor 344, the insertion loss can be calculated using the loss between the first detected optical power value P1 detected by the target photodetector and the second detected optical power value P2 detected by the second photodetector. That is, P1 - 20 + P2 is the -20 dB bandwidth of the signal light input to the multiplexing port. Also, since the target photodetector and the second photodetector detect splitting, the splitting ratios of the target splitter and the first splitter need to be considered.

[0165] Step 302b: The multiplexing / demultiplexing system adjusts the attenuation value of the variable optical attenuator to the target attenuation value.

[0166] It can be understood that the adjusted attenuation value of the variable optical attenuator is the target attenuation value.

[0167] Step 303: The multiplexing / demultiplexing system determines the wavelength of the first signal light wave corresponding to the target multiplexing port according to the optical wave parameters of the signal light wave output from the second output end of the first splitter through the optical channel monitor of the spectral scanning module.

[0168] In a possible implementation, the above optical wave parameters may include at least one of the following: center frequency, spectral width.

[0169] In the embodiments of the present application, the optical wave parameters of the signal light wave output from the second output end of the first splitter are associated with the adjusted attenuation value of the variable optical attenuator.

[0170] It can be understood that after the attenuation value of the variable optical attenuator is adjusted to the target attenuation value, the optical wave parameters of the signal light wave input from the variable optical attenuator to the first splitter will change. Therefore, the optical wave parameters of the signal light wave output from the second output end of the first splitter will also change, that is, the optical wave parameters of the signal light wave output from the second output end of the first splitter are associated with the adjusted attenuation value of the variable optical attenuator.

[0171] Thus, it can be seen that since the optical channel monitor can determine the wavelength of the first signal light wave corresponding to the target multiplexing port according to the optical wave parameters of the signal light wave output from the second output end of the first splitter, and the optical wave parameters of the signal light wave output from the second output end of the first splitter are associated with the adjusted attenuation value of the variable optical attenuator, the wavelength of the first signal light wave corresponding to the target multiplexing port can be adjusted by adjusting the attenuation value of the variable optical attenuator so that it is different from the wavelength of the signal light wave that can pass through the demultiplexing port corresponding to the target multiplexing port, thereby achieving the effect of adaptively adjusting the wavelength of the signal light wave that can pass through the demultiplexing port.

[0172] In the above embodiments of the present application, each solution can be combined without conflict.

[0173] The embodiments of the present application can divide the port configuration device into functional modules or functional units according to the above method examples. For example, each functional module or functional unit can be corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware, or in the form of a software functional module or functional unit. Among them, the division of modules or units in the embodiments of the present application is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0174] In the case of dividing each functional module corresponding to each function, Figure 18 FIG. shows a schematic structural diagram of a port configuration device 70. The port configuration device 70 can be a multiplexer / demultiplexer system or a chip applied to the multiplexer / demultiplexer system, and the port configuration device 70 can be used to perform the functions of the multiplexer / demultiplexer system involved in the above embodiments. Figure 18 The shown port configuration device 70 may include: an acquisition module 701 and a processing module 702.

[0175] The acquisition module 701 is configured to obtain the wavelengths of N first signal light waves when the N multiplexing ports of the multiplexing unit of the port configuration device 70 correspond to the input N first signal light waves one by one. The processing module 702 is configured to configure the wavelengths of the signal light waves that can pass through the N demultiplexing ports of the demultiplexing unit of the port configuration device 70 according to the wavelengths of the N first signal light waves obtained by the acquisition module 701; and respectively control each of the N second signal light waves to be output from a demultiplexing port with a matching wavelength. Among them, the above N second signal light waves are: the signal light waves obtained by demultiplexing the target signal light wave by the demultiplexing unit; the above target signal light wave is: the signal light wave obtained by multiplexing the N first signal light waves by the multiplexing unit and output to the demultiplexing unit.

[0176] In a possible implementation manner, the above acquisition module 701 is further configured to obtain the port identifiers of the N multiplexing ports. The above processing module 702 is further configured to determine, for each of the N multiplexing ports, a demultiplexing port that matches the port identifier of a multiplexing port obtained by the acquisition module 701. Specifically, the processing module 702 is configured to, for each of the N multiplexing ports, configure the wavelengths of the signal light waves that can pass through the demultiplexing port corresponding to a multiplexing port according to the wavelength of the first signal light wave corresponding to the multiplexing port.

[0177] In a possible implementation manner, the above-mentioned obtaining module 701 is further configured to obtain a first detected optical power value and a second detected optical power value; the first detected optical power value is the detected optical power value obtained by detecting the first signal optical wave corresponding to the target multiplexing port by the target photodetector; the second detected optical power value is the detected optical power value obtained by detecting the first signal optical wave corresponding to the target multiplexing port by the second photodetector of the spectral scanning module of the control unit. The above-mentioned processing module 702 is further configured to adjust the attenuation value of the variable optical attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value obtained by the obtaining module 701; and determine the wavelength of the first signal optical wave corresponding to the target multiplexing port through the optical channel monitor of the spectral scanning module according to the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter; the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the variable optical attenuator. Among them, the above-mentioned target photodetector is any one of the N first photodetectors of the control unit; the above-mentioned target multiplexing port is the multiplexing port corresponding to the target photodetector.

[0178] In a possible implementation manner, the above-mentioned target multiplexing port is connected to the target photodetector through a target optical splitter. The processing module 702 is specifically configured to use a target algorithm to calculate a target attenuation value according to the first detected optical power value, the second detected optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter; and adjust the attenuation value of the variable optical attenuator to the target attenuation value. Among them, the above-mentioned target algorithm is: A = P1 - 20 + P2 - 10lg(α1·α2); A is the target value, P1 is the first detected optical power value, P2 is the second detected optical power value, α1 is the splitting ratio of the target optical splitter, and α2 is the splitting ratio of the first optical splitter.

[0179] As yet another implementable manner, Figure 18 the modules in Figure 18 including the obtaining module 701 and the processing module 702 can be replaced by a processor, and the processor can integrate

[0180] The embodiments of the present application also provide a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by a computer program instructing relevant hardware. This program can be stored in the above computer-readable storage medium. When this program is executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be an internal storage unit of the multiplexer / demultiplexer system in any of the foregoing embodiments, such as the hard disk or memory of the multiplexer / demultiplexer system. The above computer-readable storage medium can also be an external storage device of the above terminal device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the above terminal device. Further, the above computer-readable storage medium can also include both the internal storage unit of the multiplexer / demultiplexer system and the external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the multiplexer / demultiplexer system. The above computer-readable storage medium can also be used to temporarily store the data that has been output or will be output.

[0181] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0182] It should be understood that in the present application, "at least one (item)" means one or more, "a plurality" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can represent: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one (item) of the following" or its similar expression refers to any combination of these items, including any combination of single item (item) or plural items (items). For example, at least one (item) of a, b or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0183] From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0184] In several embodiments provided in this application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections between each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical or other forms.

[0185] The units described as separate components may or may not be physically separated. The components displayed as units can be one physical unit or multiple physical units, that is, they can be located in one place, or they can be distributed to multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0186] In addition, in each embodiment of this application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0187] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of this application. The foregoing storage medium includes: USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or optical discs and other various media that can store program codes.

[0188] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A multiplexer / demultiplexer system, characterized in that, Comprising: A multiplexing unit, which includes N multiplexing ports and an optical wave output port; The multiplexing unit is configured to multiplex N first signal optical waves respectively input through the N multiplexing ports one by one, and output the multiplexed target signal optical wave through the optical wave output port; A demultiplexing unit, which includes N demultiplexing ports and an optical wave input port; the optical wave input port is connected to the optical wave output port; the demultiplexing unit is configured to demultiplex the target signal optical wave received by the optical wave input port to obtain N second signal optical waves; each of the N second signal optical waves corresponds to one first signal optical wave; A control unit, which is connected to the multiplexing unit and the demultiplexing unit; the control unit is configured to configure the wavelengths of the signal optical waves that can pass through the N demultiplexing ports according to the wavelengths of the N first signal optical waves, and respectively control each second signal optical wave to be output through a demultiplexing port with a matching wavelength; Wherein, N is a positive integer greater than 1; The control unit includes: N first photodetectors, and each of the N first photodetectors is respectively connected to a multiplexing port; each first photodetector is configured to detect whether a first signal optical wave is input to the corresponding multiplexing port; A spectral scanning module, which can be connected to the N multiplexing ports; A controller, which is connected to the N first photodetectors and the spectral scanning module; Wherein, the controller is configured to, when a target photodetector detects that a first signal optical wave is input to a target multiplexing port, control the spectral scanning module to be connected to the target multiplexing port, and control the spectral scanning module to scan and obtain the wavelength of the first signal optical wave output by the target multiplexing port; The target photodetector is any one of the N first photodetectors; the target multiplexing port is the multiplexing port corresponding to the target photodetector; The spectral scanning module includes: An adjustable attenuator; A first optical splitter, the input end of which is connected to the adjustable attenuator; A second photodetector, which is connected to the first output end of the first optical splitter; An optical channel monitor, which is connected to the second output end of the first optical splitter; Wherein, the adjustable attenuator is configured to adjust the attenuation value of the adjustable attenuator based on the detected optical power values detected by the target photodetector and the second photodetector; The optical channel monitor is configured to determine the wavelength of the first signal optical wave corresponding to the target multiplexing port according to the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter; the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the adjustable attenuator.

2. The multiplexer / demultiplexer system according to claim 1, wherein The control unit further includes: M analog switches, the M analog switches are connected to the N first photodetectors and the controller, and each of the M analog switches corresponds to at least one first photodetector; Wherein, the controller is further configured to control each analog switch to be sequentially connected to the corresponding first photodetector; M is a positive integer.

3. The multiplexer / demultiplexer system according to claim 1, wherein The control unit further includes: A control optical switch, the control optical switch includes N moving terminals and a fixed terminal, each of the N moving terminals is connected to a multiplexing port, and the fixed terminal is connected to the spectral scanning module; the control optical switch is further connected to the controller; Wherein, the controller is specifically configured to control the target moving terminal to be connected to the fixed terminal when the target photodetector detects that the first signal light wave is input to the target multiplexing port; The target moving terminal is: among the N moving terminals, the moving terminal corresponding to the target multiplexing port.

4. The multiplexer / demultiplexer system according to claim 1, characterized in that, The multiplexing unit further includes: A first coupler, an input end of the first coupler is connected to the N multiplexing ports, and an output end is connected to the light wave output port; the first coupler is configured to multiplex the N first signal light waves to obtain the target signal light wave.

5. The multiplexer / demultiplexer system according to claim 4, wherein The multiplexing unit further includes: N second optical splitters, an input end of each of the N second optical splitters is connected to a multiplexing port, a first output end of each second optical splitter is connected to a first photodetector of the control unit, a second output end of each second optical splitter is connected to a moving terminal of the control optical switch of the control unit, and a third output end of each second optical splitter is connected to the first coupler.

6. The multiplexer / demultiplexer system according to claim 4, wherein The multiplexing unit further includes: N third optical splitters, an input end of each of the N third optical splitters is connected to a multiplexing port, and a first output end of each third optical splitter is connected to a first photodetector of the control unit; N fourth optical splitters, an input end of each of the N fourth optical splitters is connected to a second output end of a third optical splitter, a first output end of each fourth optical splitter is connected to a moving terminal of the control optical switch of the control unit, and a second output end of each fourth optical splitter is connected to the first coupler.

7. The multiplexer / demultiplexer system according to claim 4, characterized in that The multiplexing unit further includes: Q second couplers, an input end of each of the Q second couplers is connected to at least one of the N multiplexing ports, and an output end of each second coupler is connected to the first coupler; each second coupler is configured to multiplex the N first signal light waves and transmit the multiplexed signal light wave to the first coupler for multiplexing, and Q is a positive integer greater than 1.

8. The multiplexer / demultiplexer system according to claim 1, wherein The demultiplexing unit further includes: A third coupler, an input end of the third coupler is connected to the light wave input port, and an output end is connected to the N demultiplexing ports; the third coupler is configured to demultiplex the target signal light wave to obtain the N second signal light waves.

9. The multiplexer / demultiplexer system according to claim 8, characterized in that The demultiplexing unit further includes: T wavelength selection switches, the T wavelength selection switches are connected to the N demultiplexing ports, the control unit, and the light wave input port, and each of the T wavelength selection switches corresponds to at least one demultiplexing port; Wherein, the control unit is specifically configured to control the wavelengths of the signal optical waves that can pass through the corresponding demultiplexing ports of each wavelength selection switch according to the wavelengths of the N first signal optical waves; T is a positive integer.

10. A port configuration method, characterized in that, Applied to the multiplexing / demultiplexing system according to any one of claims 1 to 9, the method includes: When N first signal optical waves are input one by one to the N multiplexing ports of the multiplexing unit of the multiplexing / demultiplexing system, obtaining the wavelengths of the N first signal optical waves; According to the wavelengths of the N first signal optical waves, configuring the wavelengths of the signal optical waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexing / demultiplexing system; Controlling each of the N second signal optical waves to be output from one demultiplexing port with a matching wavelength; Wherein, the N second signal optical waves are: the signal optical waves obtained by demultiplexing the target signal optical wave obtained by multiplexing and outputting from the optical wave output port of the multiplexing unit by the demultiplexing unit; the target signal optical wave is: the signal optical wave obtained by multiplexing the N first signal optical waves by the multiplexing unit and output to the demultiplexing unit; Before obtaining the wavelengths of the N first signal optical waves, the method further includes: Obtaining a first detected optical power value and a second detected optical power value; the first detected optical power value is: the detected optical power value obtained by a target photodetector detecting the first signal optical wave corresponding to a target multiplexing port; the second detected optical power value is: the detected optical power value obtained by a second photodetector of the spectral scanning module of the control unit of the multiplexing / demultiplexing system detecting the first signal optical wave corresponding to the target multiplexing port; According to the first detected optical power value and the second detected optical power value, adjusting the attenuation value of the tunable attenuator of the spectral scanning module; Through the optical channel monitor of the spectral scanning module, determining the wavelength of the first signal optical wave corresponding to the target multiplexing port according to the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter of the spectral scanning module; the optical wave parameters of the signal optical wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the tunable attenuator; Wherein, the target photodetector is: any one of the N first photodetectors of the control unit; the target multiplexing port is: the multiplexing port corresponding to the target photodetector.

11. The method according to claim 10, wherein Before configuring the wavelengths of the signal optical waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexing / demultiplexing system according to the wavelengths of the N first signal optical waves, the method further includes: Obtaining the port identifiers of the N multiplexing ports; For each of the N multiplexing ports, determining a demultiplexing port that matches the port identifier of one multiplexing port; The configuring the wavelengths of the signal optical waves that can pass through the N demultiplexing ports of the demultiplexing unit of the multiplexing / demultiplexing system according to the wavelengths of the N first signal optical waves includes: For each of the N multiplexing ports, configuring the wavelength of the signal optical wave that can pass through the demultiplexing port corresponding to one multiplexing port according to the wavelength of the first signal optical wave corresponding to the one multiplexing port.

12. The method according to claim 10, wherein The target multiplexing port is connected to the target photodetector through a target optical splitter; Adjusting the attenuation value of the variable optical attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value includes: Using a target algorithm to calculate a target attenuation value according to the first detected optical power value, the second detected optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter; Adjusting the attenuation value of the variable optical attenuator to the target attenuation value; Wherein, the target algorithm is: A = P1 - 20 + P2 - 10lg(α1·α2); A is the target value, P1 is the first detected optical power value, P2 is the second detected optical power value, α1 is the splitting ratio of the target optical splitter, and α2 is the splitting ratio of the first optical splitter.

13. A port configuration device, characterized in that, The port configuration device includes: an acquisition module and a processing module; The acquisition module is configured to obtain the wavelengths of N first signal light waves when the N first signal light waves are input one by one to N multiplexing ports of the multiplexing unit of the port configuration device; The processing module is configured to configure the wavelengths of the signal light waves that can pass through N demultiplexing ports of the demultiplexing unit of the port configuration device according to the wavelengths of the N first signal light waves obtained by the acquisition module; and respectively control each of the N second signal light waves to be output from a demultiplexing port with a matching wavelength; Wherein, the N second signal light waves are: the signal light waves obtained by demultiplexing the target signal light wave obtained by multiplexing the optical wave output port of the multiplexing unit; the target signal light wave is: the signal light wave obtained by multiplexing the N first signal light waves by the multiplexing unit and output to the demultiplexing unit; The acquisition module is further configured to obtain a first detected optical power value and a second detected optical power value; the first detected optical power value is: the detected optical power value obtained by the target photodetector detecting the first signal light wave corresponding to the target multiplexing port; the second detected optical power value is: the detected optical power value obtained by the second photodetector of the spectral scanning module of the control unit of the port configuration device detecting the first signal light wave corresponding to the target multiplexing port; The processing module is further configured to adjust the attenuation value of the variable optical attenuator of the spectral scanning module according to the first detected optical power value and the second detected optical power value obtained by the acquisition module; and determine the wavelength of the first signal light wave corresponding to the target multiplexing port through the optical channel monitor of the spectral scanning module according to the optical wave parameters of the signal light wave output from the second output end of the first optical splitter; the optical wave parameters of the signal light wave output from the second output end of the first optical splitter are associated with the adjusted attenuation value of the variable optical attenuator; Wherein, the target photodetector is: any one of the N first photodetectors of the control unit; the target multiplexing port is: the multiplexing port corresponding to the target photodetector.

14. The port configuration device according to claim 13, wherein The obtaining module is further configured to obtain the port identifiers of the N multiplexing ports; The processing module is further configured to, for each of the N multiplexing ports, determine a demultiplexing port that matches the port identifier of one of the multiplexing ports obtained by the obtaining module; Specifically, the processing module is configured to, for each of the N multiplexing ports, configure the wavelength of the signal optical wave that can pass through the demultiplexing port corresponding to the one multiplexing port according to the wavelength of the first signal optical wave corresponding to the one multiplexing port.

15. The port configuration device according to claim 13, characterized in that The target multiplexing port is connected to the target photodetector through a target optical splitter; Specifically, the processing module is configured to use a target algorithm to calculate a target attenuation value according to the first detected optical power value, the second detected optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter; and adjust the attenuation value of the tunable attenuator to the target attenuation value; Wherein, the target algorithm is: A = P1 - 20 + P2 - 10lg(α1·α2); A is the target value, P1 is the first detected optical power value, P2 is the second detected optical power value, α1 is the splitting ratio of the target optical splitter, and α2 is the splitting ratio of the first optical splitter.

16. A port configuration device, characterized in that, It includes: A processor, a memory, and a communication interface; wherein, the communication interface is used for the port configuration device to communicate; The memory is used to store one or more programs, and the one or more programs include computer execution instructions. When the port configuration device runs, the processor executes the computer execution instructions stored in the memory, so that the port configuration device executes the method according to any one of claims 10 to 12.

17. A computer-readable storage medium, characterized in that, Instructions are stored in the readable storage medium, and when the instructions are executed, the method according to any one of claims 10 to 12 is implemented.

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