CN115694712A - Multiplexing/demultiplexing system, port configuration method, port configuration device and computer-readable storage medium - Google Patents

Multiplexing/demultiplexing system, port configuration method, port configuration device and computer-readable storage medium Download PDF

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Publication number
CN115694712A
CN115694712A CN202211358413.8A CN202211358413A CN115694712A CN 115694712 A CN115694712 A CN 115694712A CN 202211358413 A CN202211358413 A CN 202211358413A CN 115694712 A CN115694712 A CN 115694712A
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wave
port
optical
signal light
target
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李子凡
陈芳
李伯中
白晓杰
张祎
张儒依
赵星宇
黄丽艳
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Accelink Technologies Co Ltd
State Grid Information and Telecommunication Co Ltd
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Accelink Technologies Co Ltd
State Grid Information and Telecommunication Co Ltd
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Priority to CN202211358413.8A priority Critical patent/CN115694712A/en
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Abstract

The application discloses a wavelength multiplexing and demultiplexing system, a port configuration method, a port configuration device and a computer readable storage medium, relates to the technical field of wavelength division multiplexing and is used for improving the transmission efficiency of a wavelength division multiplexing transmission system. The multiplexing and demultiplexing system comprises: a wave combining unit; the wave combining unit is used for combining N first signal light waves input by the N wave combining ports in a one-to-one correspondence manner, and outputting a target signal light wave obtained by combining waves from the light wave output port; a wavelength division unit, configured to divide the target signal light waves received by the 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; the control unit is used for configuring the wavelengths of the passing signal light waves of the N wavelength division ports according to the wavelengths of the N first signal light waves, respectively controlling each second signal light wave and outputting the second signal light wave through one wavelength division port matched with the wavelength; n is a positive integer greater than 1.

Description

Wavelength multiplexing/demultiplexing system, port configuration method, port configuration device and computer readable storage medium
Technical Field
The present application relates to the field of wavelength division multiplexing technologies, and in particular, to a wavelength multiplexing/demultiplexing system, a port configuration method, a port configuration device, and a computer-readable storage medium.
Background
Currently, in a wavelength division multiplexing transmission system, a system transmitting end can respectively access different optical signals to different wave combining ports of a wave combining and splitting device, so that signal light waves with different wavelengths can enter the wave combining and splitting device through different wave combining ports, and thus the wave combining and splitting device can combine the signal light waves with different wavelengths and transmit the signal light waves obtained by wave combining in an optical fiber. Therefore, the system receiving end can perform wave splitting on the signal light wave transmitted in the optical fiber through the other multiplexer/demultiplexer to obtain signal light waves with different wavelengths, and control the signal light waves with different wavelengths to be output to different receivers through different wave splitting ports of the other multiplexer/demultiplexer.
However, since the wavelength multiplexing/demultiplexing device used in the wavelength division multiplexing system is a passive device, the wavelength of the signal light wave that can pass through is assigned to both the wavelength multiplexing/demultiplexing port of the wavelength multiplexing/demultiplexing device, and thus, in the process of using the wavelength division multiplexing transmission system, it is necessary to check whether the wavelength of the signal light wave matches the wavelength of the signal light wave that can pass through the wavelength multiplexing/demultiplexing port (and/or the wavelength demultiplexing port) many times. Therefore, it results in low efficiency of transmission using the wavelength division multiplexing transmission system.
Disclosure of Invention
The application provides a wavelength division multiplexing system, a port configuration method, a port configuration device and a computer readable storage medium, which are used for improving the transmission efficiency by using the wavelength division multiplexing transmission system.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, a multiplexer/demultiplexer system is provided, which includes: the optical coupler comprises a wave combining unit, a light source and a light source, wherein the wave combining unit comprises N wave combining ports and a light wave output port; the wave combining unit is used for combining N first signal light waves input by the N wave combining ports in a one-to-one correspondence manner, and outputting a target signal light wave obtained by combining waves from the light wave output port; a wavelength division unit including N wavelength division ports and an optical wave input port; the optical wave input port is connected with the optical wave output port; the wavelength division unit is used for carrying out wavelength division on the target signal light waves received by the 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; the control unit is connected with the wave combining unit and the wave splitting unit; the control unit is used for configuring the wavelengths of the passing signal light waves of the N wavelength division ports according to the wavelengths of the N first signal light waves, respectively controlling each second signal light wave and outputting the second signal light wave through one wavelength division port matched with the wavelength; wherein N is a positive integer greater than 1.
Based on the wavelength division multiplexing system, the control unit may obtain the wavelengths of the N first signal light waves input by the N multiplexing ports in a one-to-one correspondence manner, and configure the wavelengths of the passing signal light waves of the N multiplexing ports according to the wavelengths of the N first signal light waves, so as to control each second signal light wave respectively, and output the second signal light wave through one wavelength division port matched with the wavelength, instead of assigning the wavelengths of the passing signal light waves to each multiplexing port and each wavelength division port, therefore, in the process of using the wavelength division multiplexing transmission system, it is not necessary to check whether the wavelengths of the signal light waves are matched with the wavelengths of the passing signal light waves of the multiplexing ports (and/or wavelength division ports), and thus the efficiency of using the wavelength division multiplexing transmission system for transmission can be improved.
In a possible implementation manner, the control unit includes: each first photoelectric detector in the N first photoelectric detectors is connected with one wave-combining port respectively; each first photoelectric detector is used for detecting whether the corresponding wave combining port inputs a first signal light wave or not; the spectrum scanning module can be connected with the N wave combining ports; the controller is connected with the N first photoelectric detectors and the spectrum scanning module; the controller is used for controlling the spectrum scanning module to be connected with the target wave combining port and controlling the spectrum scanning module to scan to obtain the wavelength of the first signal light wave output by the target wave combining port under the condition that the target photoelectric detector detects that the first signal light wave is input into the target wave combining port; the target photodetector is: any one of the N first photodetectors; the target wave combining port is as follows: and the multiplexing port corresponds to the target photoelectric detector.
In a possible implementation manner, the control unit further includes: the M analog switches are connected with the N first photoelectric detectors and the controller, and each analog switch in the M analog switches corresponds to at least one first photoelectric detector; the controller is also used for respectively controlling each analog switch to be connected with the corresponding first photoelectric detector in sequence; m is a positive integer.
In a possible implementation manner, the control unit further includes: the control optical switch comprises N movable ends and a fixed end, wherein each movable end of the N movable ends is connected with a wave combining port, and the fixed end is connected with the spectrum scanning module; the control optical switch is also connected with the controller; the controller is specifically used for controlling the movable end and the fixed end of the target to be connected under the condition that the target photoelectric detector detects that the target wave combining port inputs the first signal light wave; the target moving end is as follows: and the moving end corresponding to the target wave combining port is selected from the N moving ends.
In a possible implementation manner, the spectrum scanning module includes: an adjustable attenuator; the input end of the first optical splitter is connected with the adjustable attenuator; the second photoelectric detector is connected with the first output end of the first optical splitter; the optical channel monitor is connected with the second output end of the first optical splitter; the adjustable attenuator is used for adjusting the attenuation value of the adjustable attenuator based on the detected light power values detected by the target photoelectric detector and the second photoelectric detector; the optical channel monitor is used for determining the wavelength of the first signal light wave corresponding to the target wave combining port according to the light wave parameters of the signal light wave output by the second output end of the first optical splitter; the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is related to the adjusted attenuation value of the adjustable attenuator.
In a possible implementation manner, the wave combining unit further includes: the input end of the first coupler is connected with the N wave combining ports, and the output end of the first coupler is connected with the light wave output port; the first coupler is used for combining the N first signal light waves to obtain a target signal light wave.
In a possible implementation manner, the wave combining unit further includes: the input end of each second optical splitter in the N second optical splitters is connected with one wave-combining port, the first output end of each second optical splitter is connected with one first photoelectric detector of the control unit, the second output end of each second optical splitter is connected with one movable end of a control optical switch of the control unit, and the third output end of each second optical splitter is connected with the first coupler.
In a possible implementation manner, the wave combining unit further includes: the input end of each third optical splitter in the N third optical splitters is connected with one multiplexing port, and the first output end of each third optical splitter is connected with one first photoelectric detector of the control unit; the input end of each fourth optical splitter in the N fourth optical splitters is connected with the second output end of one third optical splitter, the first output end of each fourth optical splitter is connected with one movable end of a control optical switch of the control unit, and the second output end of each fourth optical splitter is connected with the first coupler.
In a possible implementation manner, the wave combining unit further includes: the input end of each second coupler in the Q second couplers is connected with at least one wave combining port in the N wave combining ports, and the output end of each second coupler is connected with the first coupler; each second coupler is used for combining the N first signal light waves and transmitting the signal light waves obtained by combining to the first couplers for combining, and Q is a positive integer greater than 1.
In a possible implementation manner, the wavelength division unit further includes: the input end of the third coupler is connected with the optical wave input port, and the output end of the third coupler is connected with the N wavelength division ports; the third coupler is used for splitting the target signal light wave to obtain N second signal light waves.
In a possible implementation manner, the wavelength division unit further includes: the wavelength selection switches are connected with the wavelength division ports, the control unit and the optical wave input port, and each wavelength selection switch in the wavelength selection switches corresponds to at least one wavelength division port; the control unit is specifically configured to control, according to the wavelengths of the N first signal optical waves, the wavelength of the passing signal optical wave of the wavelength division port corresponding to each wavelength selective switch configuration.
In a second aspect, a port configuration method is provided, which is applied to the multiplexing and demultiplexing system according to the first aspect, and the port configuration method includes: under the condition that N first signal light waves are input to N wave combining ports of a wave combining unit of a wave combining and splitting system in a one-to-one correspondence mode, the wavelengths of the N first signal light waves are obtained; according to the wavelengths of the N first signal light waves, the wavelengths of the signal light waves which can pass through the N wave splitting ports of the wave splitting unit of the combined wave splitting system are configured; and respectively controlling each second signal light wave in the N second signal light waves to be output by a wavelength division port matched with the wavelength. Wherein the N second signal light waves are: the wave splitting unit is used for splitting the target signal light wave to obtain a signal light wave; the target signal light wave is: the wave combining unit is used for combining the N first signal light waves to obtain signal light waves and outputting the signal light waves to the wave splitting unit.
In a possible implementation manner, before the method of configuring the wavelengths of the passable signal light waves of the N wavelength division ports of the wavelength division unit of the wavelength division multiplexing and demultiplexing system according to the wavelengths of the N first signal light waves, the port configuration method further includes: acquiring port identifiers of N wave-combining ports; aiming at each combined wave port in the N combined wave ports, determining a wave splitting port matched with a port identifier of one combined wave port; the method for configuring the wavelengths of the passable signal optical waves of the N wavelength division ports of the wavelength division unit of the combined and split system according to the wavelengths of the N first signal optical waves includes: and aiming at each wave combining port in the N wave combining ports, configuring the wavelength of the passing signal light wave of the wave splitting port corresponding to one wave combining port according to the wavelength of the first signal light wave corresponding to one wave combining port.
In a possible implementation manner, before the "acquiring the wavelengths of the N first signal optical waves", the port configuration method further includes: acquiring a first detection optical power value and a second detection optical power value; the first detection optical power value is: the target photoelectric detector detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value; the second detection optical power value is: a second photoelectric detector of a spectrum scanning module of the control unit detects a first signal light wave corresponding to a target wave combining port to obtain a detection light power value; adjusting the attenuation value of an adjustable attenuator of the spectrum scanning module according to the first detection light power value and the second detection light power value; determining the wavelength of a first signal light wave corresponding to a target wave combining port according to the light wave parameters of the signal light wave output by the second output end of the first optical splitter through an optical channel monitor of the spectrum scanning module; the wave parameter of the signal wave output by the second output of the first optical splitter is correlated with the adjusted attenuation value of the adjustable attenuator. Wherein, the target photoelectric detector is: any one of the N first photodetectors of the control unit; the target wave combining port is as follows: and the object photoelectric detector corresponds to the wave combining port.
In a possible implementation manner, the target wavelength combining port is connected to the target photodetector through the target optical splitter. The method for adjusting the attenuation value of the adjustable attenuator of the spectrum scanning module according to the first detection optical power value and the second detection optical power value includes: using a target algorithm based on the first detected optical powerCalculating the value, the second detection light power value, the splitting ratio of the target optical splitter and the splitting ratio of the first optical splitter to obtain a target attenuation value; and adjusting the attenuation value of the adjustable attenuator to be a target attenuation value. Wherein, the target algorithm is as follows: a = P1-20+P2-10lg (alpha) 1 ·α 2 ) (ii) a A is a target value, P1 is a first detection optical power value, P2 is a second detection optical power value, alpha 1 Is the splitting ratio of the target splitter, alpha 2 Is the splitting ratio of the first splitter.
The specific implementation manner of the port configuration method may refer to the first aspect or any possible design of the first aspect, and details are not repeated herein. Thus, the port configuration method may achieve the same benefits as the first aspect or any of the possible designs of the first aspect.
In a second aspect, there is provided a port configuration method, which is applied to the multiplexing and demultiplexing system according to the first aspect, and the method includes: acquiring the wavelengths of N first signal light waves under the condition that N wave combining ports of a wave combining unit of a wave combining and splitting system correspond to the N input first signal light waves one by one; according to the wavelengths of the N first signal light waves, the wavelengths of the signal light waves which can pass through the N wave splitting ports of the wave splitting unit of the combined wave splitting system are configured; respectively controlling each second signal light wave in the N second signal light waves, and outputting the second signal light waves through a wavelength division port matched with the wavelength; wherein. The N second signal light waves are: the wave splitting unit is used for splitting the target signal light wave to obtain a signal light wave; the target signal light wave is: the wave combining unit is used for combining the N first signal light waves to obtain signal light waves and outputting the signal light waves to the wave splitting unit.
In a possible implementation manner, before the method of configuring the wavelengths of the signal optical waves that can pass through the N wavelength division ports of the wavelength division unit of the wavelength division multiplexing/demultiplexing system according to the wavelengths of the N first signal optical waves, "the port configuration method provided in the embodiment of the present application further includes: acquiring port identifications of N wave-combining ports; aiming at each combined wave port in the N combined wave ports, determining a wave splitting port matched with a port identifier of one combined wave port; the method for configuring the wavelengths of the passable signal optical waves of the N wavelength division ports of the wavelength division unit of the combined and split system according to the wavelengths of the N first signal optical waves includes: and aiming at each wave combining port in the N wave combining ports, configuring the wavelength of the passing signal light wave of the wave splitting port corresponding to one wave combining port according to the wavelength of the first signal light wave corresponding to one wave combining port.
In a possible implementation manner, before the method of obtaining the wavelengths of the N first signal optical waves, the method for configuring a port provided in the embodiment of the present application further includes: acquiring a first detection optical power value and a second detection optical power value; the first detection optical power value is: the target photoelectric detector detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value; the second detection optical power value is: a second photoelectric detector of a spectrum scanning module of the control unit detects a first signal light wave corresponding to a target wave combining port to obtain a detection light power value; adjusting the attenuation value of an adjustable attenuator of the spectrum scanning module according to the first detection light power value and the second detection light power value; determining the wavelength of a first signal light wave corresponding to a target wave combining port according to the light wave parameters of the signal light wave output by the second output end of the first optical splitter through an optical channel monitor of the spectrum scanning module; the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is related to the adjusted attenuation value of the adjustable attenuator. Wherein, the target photoelectric detector is: any one of the N first photodetectors of the control unit; the target wave combining port is as follows: and the multiplexing port corresponds to the target photoelectric detector.
In a possible implementation manner, the target wavelength combining port is connected to the target photodetector through the target optical splitter. The method for adjusting the attenuation value of the adjustable attenuator of the spectrum scanning module according to the first detection optical power value and the second detection optical power value includes: calculating to obtain a target attenuation value according to the first detection light power value, the second detection light power value, the splitting ratio of the target optical splitter and the splitting ratio of the first optical splitter by adopting a target algorithm; by means of an adjustable attenuatorAnd adjusting the attenuation value to a target attenuation value. Wherein, the target algorithm is as follows: a = P1-20+P2-10lg (alpha) 1 ·α 2 ) (ii) a A is a target value, P1 is a first detected optical power value, P2 is a second detected optical power value, α 1 Is the splitting ratio of the target splitter, alpha 2 Is the splitting ratio of the first splitter.
In a third aspect, a port configuration apparatus is provided, where the port configuration apparatus is applied to a wavelength division multiplexing/demultiplexing system, and may also be a functional module in the wavelength division multiplexing/demultiplexing system, which is used to implement the method according to the second aspect or any possible design of the second aspect. The port configuration device may implement the functions performed by the multiplexing and demultiplexing system in each of the above aspects or possible designs, and the functions may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the port configuration device comprises an acquisition module and a processing module.
The acquisition module is used for acquiring the wavelengths of the N first signal light waves under the condition that the N wave combining ports of the wave combining unit of the port configuration device correspond to the N input first signal light waves one by one. The processing module is used for configuring the wavelengths of the signal light waves which can pass through the N wave division ports of the wave division unit of the port configuration device according to the wavelengths of the N first signal light waves acquired by the acquisition module; and each second signal light wave in the N second signal light waves is respectively controlled and output by a wavelength division port matched with the wavelength. Wherein the N second signal light waves are: the wave splitting unit is used for splitting the target signal light wave to obtain a signal light wave; the target signal light wave is: the wave combining unit combines the N first signal light waves to obtain signal light waves which are output to the wave splitting unit.
The specific implementation manner of the port configuration apparatus may refer to the second aspect or the behavior function of the multiplexing/demultiplexing system in the port configuration method provided by any possible design of the second aspect, and will not be described repeatedly herein. Thus, the port configuration apparatus provided may achieve the same advantageous effects as the second aspect or any of the possible designs of the second aspect.
In a possible implementation manner, the obtaining module is further configured to obtain port identifiers of the N multiplexing ports. The processing module is further configured to determine, for each combined wave port of the N combined wave ports, a wavelength division port that matches the port identifier of the combined wave port acquired by the acquisition module. The processing module is specifically configured to configure, for each combined wave port of the N combined wave ports, a wavelength of a passing signal light wave of a wavelength division port corresponding to one combined wave port according to a wavelength of a first signal light wave corresponding to the one combined wave port.
In a possible implementation manner, the obtaining module is further configured to obtain a first detection optical power value and a second detection optical power value; the first detection optical power value is: the target photoelectric detector detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value; the second detected optical power value is: and a second photoelectric detector of the spectrum scanning module of the control unit detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value. The processing module is further configured to adjust an attenuation value of an adjustable attenuator of the spectrum scanning module according to the first detected light power value and the second detected light power value obtained by the obtaining module; determining the wavelength of a first signal light wave corresponding to the target wave combining port according to the light wave parameters of the signal light wave output by the second output end of the first optical splitter through an optical channel monitor of the spectrum scanning module; the wave parameter of the signal wave output by the second output of the first optical splitter is correlated with the adjusted attenuation value of the adjustable attenuator. Wherein, the target photoelectric detector is: any one of the N first photodetectors of the control unit; the target wave combining port is as follows: and the multiplexing port corresponds to the target photoelectric detector.
In a possible implementation manner, the target wavelength combining port is connected to the target photodetector through a target optical splitter. The processing module is specifically configured to calculate, by using a target algorithm, a target attenuation value according to the first detection light power value, the second detection light 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 adjustable attenuator to be the target attenuation value. WhereinThe target algorithm is as follows: a = P1-20 P2-10lg (alpha) 1 ·α 2 ) (ii) a A is a target value, P1 is a first detection optical power value, P2 is a second detection optical power value, alpha 1 Is the splitting ratio of the target splitter, alpha 2 Is the splitting ratio of the first splitter.
In a fourth aspect, a port configuration apparatus is provided, where the port configuration apparatus may be a wavelength division multiplexing/demultiplexing system or a chip or a system on chip in the wavelength division multiplexing/demultiplexing system. The port configuration apparatus may implement the functions performed by the wavelength multiplexing and demultiplexing system in the above aspects or in each possible design, where the functions may be implemented by hardware, such as: in one possible design, the port configuration apparatus may include: a processor and a communications interface, the processor being operable to support the port configuration apparatus to implement the functions referred to in the second aspect or any one of the possible designs of the second aspect.
In yet another possible implementation, the port configuration apparatus may further include a memory for storing computer-executable instructions and data necessary for the port configuration apparatus. When the port configuration device is running, the processor executes the computer-executable instructions stored in the memory, so as to enable the port configuration device to execute the port configuration method according to the second aspect or any one of the possible designs of the second aspect.
In a fifth aspect, a port configuration apparatus is provided, and the port configuration apparatus may be a wavelength division multiplexing system or a chip or a system on chip in a wavelength division multiplexing system. The port configuration apparatus may implement the functions performed by the multiplexing/demultiplexing system in each of the above aspects or possible designs, and the functions may be implemented by hardware, such as: in one possible design, the port configuration apparatus may include: a processor and a communications interface, the processor being operable to support the port configuration apparatus to carry out the functions referred to in the second aspect above or in any one of the possible designs of the second aspect.
In yet another possible design, the port configuration device may further include a memory for storing computer-executable instructions and data necessary for the port configuration device. When the port configuration device is running, the processor executes the computer-executable instructions stored in the memory, so as to enable the port configuration device to execute the port configuration method according to the second aspect or any one of the possible designs of the second aspect.
In a sixth aspect, a computer-readable storage medium is provided, which may be a readable non-volatile storage medium, and stores computer instructions or a program, which when executed on a computer, make the computer perform the port configuration method of the second aspect or any one of the above aspects.
In a seventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, enable the computer to perform the port configuration method of the second aspect or any one of the above possible designs.
In an eighth aspect, a port configuration apparatus is provided, which may be a multiplexer/demultiplexer system or a chip or a system on chip in a multiplexer/demultiplexer system, and includes one or more processors and one or more memories. The one or more memories are coupled to the one or more processors for storing computer program code comprising computer instructions which, when executed by the one or more processors, cause the port configuration apparatus to perform the port configuration method as set forth in the second aspect or any possible design of the second aspect.
In a ninth aspect, a chip system is provided, the chip system including a processor and a communication interface, and the chip system may be used to implement the functions performed by the add/drop system in the second aspect or any possible design of the second aspect. In one possible design, the system-on-chip further includes a memory to hold program instructions and/or data. The chip system may be formed by a chip, and may also include a chip and other discrete devices, without limitation.
The technical effects brought by any one of the design manners of the second aspect to the ninth aspect can be referred to the technical effects brought by the first aspect, and are not described in detail.
Drawings
Fig. 1 is a schematic diagram of a panel of a multiplexer/demultiplexer in the related art;
fig. 2 is a schematic structural diagram of a multiplexing/demultiplexing system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a control unit of a multiplexing/demultiplexing system according to an embodiment of the present application;
fig. 4 is a second schematic structural diagram of a control unit of the wavelength multiplexing/demultiplexing system according to the second embodiment of the present application;
fig. 5 is a third schematic structural diagram of a control unit of the wavelength multiplexing/demultiplexing system according to the embodiment of the present application;
fig. 6 is a fourth schematic structural diagram of a control unit of the multiplexing/demultiplexing system according to the embodiment of the present application;
fig. 7 is a schematic structural diagram of a spectrum scanning module of a control unit of a wavelength multiplexing/demultiplexing system according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a combining unit of a combining and splitting system according to an embodiment of the present application;
fig. 9 is a second schematic structural diagram of a combining unit of the combining and demultiplexing system according to the embodiment of the present application;
fig. 10 is a third schematic structural diagram of a combining unit of the combining and demultiplexing system according to the embodiment of the present application;
fig. 11 is a fourth schematic structural diagram of a combining unit of the combining and demultiplexing system according to the embodiment of the present application;
fig. 12 is a schematic structural diagram of a wavelength division unit of a wavelength multiplexing/demultiplexing system according to an embodiment of the present application;
fig. 13 is a second schematic structural diagram of a wavelength division unit of the wavelength multiplexing/demultiplexing system according to the embodiment of the present application;
fig. 14 is a third schematic structural diagram of a wavelength division unit of the wavelength multiplexing/demultiplexing system according to the embodiment of the present application;
fig. 15 is a fourth schematic structural diagram of a wavelength division unit of the wavelength multiplexing/demultiplexing system according to an embodiment of the present application;
fig. 16 is a flowchart illustrating a port configuration method according to an embodiment of the present application;
fig. 17 is a second flowchart illustrating a port configuration method according to a second embodiment of the present application;
fig. 18 is a schematic structural diagram of a port configuration device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the embodiments of the application, as detailed in the appended claims.
It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As background art, in a wavelength division multiplexing transmission system, at least a terminal station a (e.g. a system transmitting end), a terminal station B (e.g. a system receiving end) and a transmission optical fiber L are generally included, where the terminal station a and the terminal station B at least include a switch, a combiner/splitter and an optical module, where the optical module is inserted on the switch, a light emitting port of each optical module emits a signal light wave with a specific wavelength, and is connected to a combiner port MUX (each combiner port is represented by a transmitting port (Tx), respectively) of the corresponding wavelength of the combiner/splitter through an optical fiber, and a light receiving port of the optical module is also connected to a corresponding splitter port DEMUX (each splitter port is represented by a receiving port (ReceiveX, rx), respectively). Each optical module is connected by the method, after the connection is finished, the signal light wave emitted by each channel optical module enters the multiplexer-demultiplexer of the terminal site A from different multiplexer ports, and is multiplexed into a signal light wave by the multiplexer-demultiplexer of the terminal site A, and comes out from a signal output port (M-COM) of the multiplexer-demultiplexer of the terminal site A, so as to enter a signal input port (D-COM) of the multiplexer-demultiplexer of the terminal site B, and further the multiplexer-demultiplexer of the terminal site B can perform wavelength division on the signal light wave to obtain signal light waves with different wavelengths, and control the signal light waves with different wavelengths to be output to different receivers from different wavelength division ports of the multiplexer-demultiplexer of the terminal site B. Fig. 1 is a schematic diagram of a panel of a multiplexer/demultiplexer in the related art, in which a multiplexer port (marked as Mux) and a demultiplexer port (marked as Demux) are indicated on the panel, and the multiplexer port and the demultiplexer port are used in pairs, and each pair of ports explicitly specifies a wavelength (e.g., 1550 nm, 1552nm, 1553nm, 1555nm, etc.) of a signal light wave to pass through. However, when the multiplexer/demultiplexer shown in fig. 1 is used, it is necessary to check whether the wavelength of the signal light wave matches the multiplexer/demultiplexer port carefully, and if the wavelength of the signal light wave is not known, it is necessary to measure the wavelength of the signal light wave first and then match the multiplexer/demultiplexer port and/or the demultiplexer port. The applicant finds that the multiplexer/demultiplexer is very cumbersome to use, and when debugging the system, the optical fiber connected to the multiplexer/demultiplexer needs to be frequently plugged and unplugged to confirm whether the signal light wave is normal, and the matching between the wavelength of the multiplexer/demultiplexer port and the wavelength of the signal light wave needs to be checked every time the optical fiber is unplugged for re-access, so that the efficiency of transmission using the wavelength division multiplexing transmission system is low.
In view of this, embodiments of the present application provide a multiplexing/demultiplexing system for improving the efficiency of transmission using a wavelength division multiplexing transmission system. The multiplexing and demultiplexing system comprises: the optical fiber coupling device comprises a wave combining unit, a light source and a light source, wherein the wave combining unit comprises N wave combining ports and a light wave output port; the wave combining unit is used for combining N first signal light waves input by the N wave combining ports in a one-to-one correspondence manner, and outputting a target signal light wave obtained by combining waves from the light wave output port; the optical fiber branching unit comprises N branching ports and an optical wave input port; the optical wave input port is connected with the optical wave output port; the wave division unit is used for carrying out wave division on the target signal light waves received by the 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; the control unit is connected with the wave combining unit and the wave dividing unit; the control unit is used for configuring the wavelengths of the passing signal light waves of the N wavelength division ports according to the wavelengths of the N first signal light waves, respectively controlling each second signal light wave and outputting the second signal light wave through one wavelength division port matched with the wavelength; wherein N is a positive integer greater than 1.
Based on the above scheme, the control unit may obtain the wavelengths of the N first signal optical waves input by the N multiplexing ports in a one-to-one correspondence, and configure the wavelengths of the passing signal optical waves of the N demultiplexing ports according to the wavelengths of the N first signal optical waves to respectively control each second signal optical wave to be output by one demultiplexing port matched with the wavelength, instead of each multiplexing port and each demultiplexing port specifying the wavelength of the passing signal optical wave, so that, in the process of using the wavelength division multiplexing transmission system, it is not necessary to check whether the wavelengths of the signal optical waves are matched with the wavelengths of the passing signal optical waves of the multiplexing ports (and/or demultiplexing ports), and thus, the efficiency of using the wavelength division multiplexing transmission system for transmission can be improved.
The following describes in detail a wavelength multiplexing/demultiplexing system, a port configuration method, a port configuration device, and a computer-readable storage medium provided in embodiments of the present application with reference to the drawings of the specification.
Fig. 2 shows a schematic possible structure diagram of a multiplexing/demultiplexing system provided in an embodiment of the present application, and as shown in fig. 2, the multiplexing/demultiplexing system includes: the optical fiber coupling device comprises a wave combining unit 10, wherein the wave combining unit 10 comprises N wave combining ports 11 and an optical wave output port M-COM; the wave combining unit 10 is configured to combine N first signal optical waves input by the N wave combining ports 11 in a one-to-one correspondence manner, and output a target signal optical wave obtained by combining by the optical wave output port M-COM. A wavelength division unit 20, the wavelength division unit 20 including N wavelength division ports 21 and a lightwave input port D-COM; the optical wave input port D-COM is connected with the optical wave output port M-COM; the wavelength division unit 20 is configured to perform wavelength division on the target signal optical waves received by the optical wave input port D-COM to obtain N second signal optical waves; each of the N second signal light waves corresponds to one first signal light wave. A control unit 30, wherein the control unit 30 is connected with the wave combining unit 10 and the wave dividing unit 20; the control unit 30 is configured to configure the wavelengths of the passing signal optical waves of the N wavelength division ports 21 according to the wavelengths of the N first signal optical waves, and respectively control each second signal optical wave to be output by one wavelength division port 21 with a matched wavelength; wherein N is a positive integer greater than 1.
In a possible implementation manner, the N multiplexing ports 11 may specifically include 48 multiplexing ports, for example, the multiplexing port T1 to the multiplexing port T48. The wavelength range of the signal light wave that can pass through each of the N wave combining ports 11 is 1528nm to 1568nm, and the wavelength interval of the signal light wave that can pass through each of the wave combining ports 11 may be 100 gigahertz GHz (i.e., 0.8 nm).
In a possible implementation manner, the N multiplexing ports 11 may be connected to the N first optical modules in a one-to-one correspondence manner, so that each first optical module may input a first signal light wave to one multiplexing port 11.
In a possible implementation manner, each of the N first signal light waves has a different wavelength, or a different wavelength of a part of the first signal light waves.
In a possible implementation manner, at least one coupler is disposed 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.
In one example, at least two couplers are disposed between the N multiplexing ports 11 and the lightwave output port M-COM, and an input end of one coupler of the at least two couplers is connected to the N multiplexing ports 11, an output end of the other coupler is connected to an output end of the other coupler, and an output end of the other coupler is connected to the lightwave output port M-COM.
For each coupler in a part of the at least two couplers, the input end of one coupler can be connected with X multiplexing ports 11, the output end of the one coupler is connected with one coupler in the other part of the couplers, and X is a positive integer.
In a possible implementation, the optical wave output port M-COM may be connected to the optical wave input port D-COM by an optical fiber.
In a possible implementation manner, the N wavelength division ports 21 may specifically include 48 wavelength division ports, for example, the wavelength division port R1 to the wavelength division port R48. The wavelength range of the signal light wave that can pass through each of the N wavelength division ports 21 is 1528nm to 1568nm, and the wavelength interval of the signal light wave that can pass through each of the wavelength division ports 21 may be 100GHz (i.e., 0.8 nm).
In a possible implementation manner, a coupler is disposed 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 the coupler to obtain N second signal optical waves.
In a possible implementation manner, each of the N second signal light waves has a different wavelength, or a different wavelength of a portion of the second signal light waves. Wherein each second signal light wave may have the same wavelength as the corresponding first signal light wave.
In a possible implementation manner, when the N first signal optical waves enter the N combining ports 11, the control unit 30 may obtain the wavelengths of the N first signal optical waves, so that the control unit 30 may configure the wavelengths of the signal optical waves that can pass through the N demultiplexing ports 21.
Specifically, when the N first signal optical waves enter the N combining ports 11, the control unit 30 may further obtain port identifiers of the N combining ports 11, and determine, for each combining port 11 in the N combining ports 11, one wavelength division port 21 that matches a port identifier (for example, a port number) of one combining port 11; therefore, the control unit 30 can configure the wavelength of the passable signal light wave of the corresponding one of the wavelength division ports 21 according to the wavelength of the first signal light wave corresponding to the one of the multiplexing ports 11.
In an example, for each of the N combining ports 11, the control unit 30 may configure the wavelength of the first signal optical wave corresponding to one combining port 11 as the wavelength of the passable signal optical wave of the corresponding one demultiplexing port 21.
In another example, for each of the N combining ports 11, the control unit 30 may first adjust a value of a certain module in the control unit 30 (for example, an attenuation value of an adjustable attenuator in the following embodiments) so that the wavelength of the first signal optical wave corresponding to one combining port 11 acquired by the control unit 30 changes, so that the control unit 30 may configure the changed wavelength of the first signal optical wave corresponding to the one combining port 11 as the wavelength of the passable signal optical wave of the corresponding one splitting port 21.
In a possible implementation manner, after configuring the wavelengths of the passable signal optical waves of the N wavelength division ports, the control unit 30 may provide channel resources to the N wavelength division ports according to the wavelengths of the passable signal optical waves of the N wavelength division ports, so as to control each second signal optical wave to be output by one wavelength division port with a matched wavelength.
In the add/drop system provided in the embodiment of the present application, the control unit may obtain the wavelengths of the N first signal optical waves input by the N add ports in a one-to-one correspondence manner, and configure the wavelengths of the passing signal optical waves of the N drop ports according to the wavelengths of the N first signal optical waves, so as to control each second signal optical wave, and output the second signal optical wave through one drop port matched with the wavelength, instead of specifying the wavelengths of the passing signal optical waves by each add port and each drop port, in a process of using the wdm transmission system, it is not necessary to check whether the wavelengths of the signal optical waves are matched with the wavelengths of the passing signal optical waves of the add port (and/or the drop port), so that the efficiency of using the wdm transmission system for transmission can be improved.
In addition, since the wavelength of the multiplexing port (and/or the demultiplexing port) and the wavelength of the signal light wave can be decoupled, frequent plugging and unplugging between the optical fiber and the multiplexing unit 10 (and/or the demultiplexing unit 20) can be avoided, thereby reducing the faults of the wavelength division multiplexing transmission system and ensuring the quality of communication signals.
In a possible implementation, the control unit 30 may be composed of a plurality of modules. Specifically, referring to fig. 2, as shown in fig. 3, the control unit 30 includes: each of the N first photodetectors 35 is connected to one of the multiplexing ports 11, respectively; each first photodetector 35 is configured to detect whether a first signal light wave is input to the corresponding multiplexing port 11; a spectrum scanning module 34, wherein the spectrum scanning module 34 can be connected with the N wave combining ports 11; and a controller 31, wherein the controller 31 is connected with the N first photodetectors 35 and the spectrum scanning module 34.
In this embodiment of the application, the controller 31 is configured to, when the target photodetector detects that the first signal optical wave is input to the target wave combining port, control the spectrum scanning module 34 to be connected to the target wave combining port, and control the spectrum scanning module 34 to scan to obtain the wavelength of the first signal optical wave output by the target wave combining port; the target photodetector is: any one of the N first photodetectors; the target wave combining port is as follows: and a wave combining port corresponding to the target photoelectric detector.
Therefore, whether the N first photoelectric detectors are used for detecting the first signal light waves input into the N wave combining ports or not can be controlled by the controller, and under the condition that the N wave combining ports input the first signal light waves, the controller can control the spectrum scanning module to scan the wavelengths of the N first signal light waves without debugging, so that the efficiency of obtaining the wavelengths of the first signal light waves entering the wave combining ports can be improved.
In a possible implementation manner, each first photodetector 35 of the N first photodetectors 35 may be directly connected to one multiplexing port 11, or each first photodetector 35 may be connected to one multiplexing port 11 through one optical splitter.
In a possible implementation manner, the N first photodetectors 35 may be connected to the controller 31 through a switch. Specifically, the control unit 30 further includes: m analog switches 32, where the M analog switches 32 are connected to the N first photodetectors 35 and the controller 31, and each analog switch 32 of the M analog switches 32 corresponds to at least one first photodetector 35; m is a positive integer.
In one example, referring to fig. 3, as shown in fig. 4, the M analog switches 32 may be 1 analog switch 32, and the 1 analog switch 32 may be connected to 48 first photodetectors 35.
In another example, referring to fig. 3, as shown in fig. 5, the M analog switches 32 may be 3 analog switches 32, and each analog switch 32 may be connected to 16 first photodetectors 35.
In the embodiment of the present application, the controller 31 is further configured to respectively control each analog switch 32 to be sequentially connected to the corresponding first photodetector 35.
It is 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 value 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.
Therefore, the controller can control the M analog switches to be sequentially connected with the corresponding first photoelectric detectors, so that the spectrum scanning module can sequentially scan the wavelengths of the first signal light waves output by the M wave combining ports without arranging a plurality of spectrum scanning modules, and therefore, the use cost can be reduced.
Moreover, since more analog switches (i.e., M is greater than 2) may be provided to poll the output values of the plurality of first photodetectors simultaneously through more analog switches, the efficiency of polling the first photodetectors may be improved.
In a possible implementation manner, the spectrum scanning module 34 may be directly connected to one of the multiplexer ports 11, or the spectrum scanning module 34 may be connected to one of the multiplexer ports 11 through one of the optical splitters.
In a possible implementation manner, the spectrum scanning module 34 may be connected to the N multiplexing ports 11 through a switch. Specifically, referring to fig. 3, as shown in fig. 6, the control unit 30 further includes: the control optical switch 33 comprises N movable ends and a fixed end d, wherein each movable end of the N movable ends is connected with one wave combining port 11, and the fixed end d is connected with the spectrum scanning module 34; the control light switch 33 is also connected to the controller 31.
In a possible implementation, the control optical switch 33 may be in particular an optical switch of 1 × 48. It can be understood that the N moving ends may specifically pass through 48 moving ends, for example, moving end d1 to moving end d48.
In this embodiment, the controller 31 is specifically configured to control the moving end of the target to be connected to the stationary end d when the target photodetector detects that the first signal light wave is input from the target wave combining port; the target moving end is as follows: and the moving end corresponding to the target wave combining port in the N moving ends.
It can be understood that, when the target photodetector detects that the first signal light wave is input to the target wave combining port, the controller 31 may control the movable end of the target to be connected to the fixed end d, that is, the spectrum scanning module 34 is connected to the target wave combining port, so that the controller 31 may control the spectrum scanning module 34 to scan the wavelength of the first signal light wave output by the target wave combining port.
Therefore, the controller can control the connection between the target movable end and the target fixed end d at the target wave combining port detected by the target photoelectric detector to scan the wavelengths of the first signal light waves corresponding to the target wave combining port to obtain the wavelengths of the N first signal light waves, and a plurality of spectrum scanning modules are not required to be arranged, so that the use cost can be reduced.
In one possible implementation manner, as shown in fig. 7 in conjunction with fig. 3, the spectrum scanning module 34 includes: an adjustable attenuator 341; a first optical splitter 342, an input end of the first optical splitter 342 being connected to the adjustable attenuator 341; a second photodetector 343, the second photodetector 343 being connected to the first output terminal of the first beam splitter 342; and an optical channel monitor 344, the optical channel monitor 344 being connected to the second output terminal of the first optical splitter 342.
In this embodiment, the adjustable attenuator 341 is configured to adjust an attenuation value of the adjustable attenuator 341 based on the detected light power values detected by the target photodetector and the second photodetector.
It is understood that the adjustable attenuator 341 can adjust the optical power value of the signal light wave input by the spectrum scanning module 34 by adjusting the attenuation value of the adjustable attenuator 341.
It should be noted that, for the description of the adjustable attenuator 341 adjusting the attenuation value of the adjustable attenuator 341, reference may be made to the following detailed description in the following embodiments, which are not repeated herein.
In this embodiment, the optical channel monitor 344 is configured to determine a wavelength of a first signal optical wave corresponding to a target wavelength combining port according to an optical wave parameter of a signal optical wave output by the second output end of the first optical splitter 342; the optical wave parameter of the signal optical wave output by the second output terminal of the first optical splitter 342 is correlated with the adjusted attenuation value of the adjustable attenuator 341.
In a possible implementation, the optical wave parameter may include at least one of: center frequency, spectral width.
In one possible implementation, after the optical channel monitor 344 determines the wavelength of the first signal optical wave corresponding to the target combining port, the wavelength of the first signal optical wave corresponding to the target combining port may be fed back to the controller 31.
In this embodiment, since the adjustable attenuator 341 can adjust the attenuation value of the adjustable attenuator 341, the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter 342 may not be the same as the optical wave parameter of the signal optical wave input by the input spectrum scanning module 34 (i.e. the first signal optical wave corresponding to the target wavelength combining port), and therefore, the wavelength of the first signal optical wave corresponding to the target wavelength combining port may also be different from the wavelength of the signal optical wave that can pass through the wavelength splitting port corresponding to the target wavelength combining port.
Therefore, the optical channel monitor can determine the wavelength of the first signal optical wave corresponding to the target wave combining port according to the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter, and the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is associated with the adjusted attenuation value of the adjustable attenuator, so that the wavelength of the first signal optical wave corresponding to the target wave combining port is different from the wavelength of the passing signal optical wave of the wave splitting port corresponding to the target wave combining port by adjusting the attenuation value of the adjustable attenuator, thereby achieving the effect of adaptively adjusting the wavelength of the passing signal optical wave of the wave splitting port.
In a possible implementation, a coupler may be disposed between the N multiplexer ports 11 and the optical wave output port M-COM. Specifically, referring to fig. 2, as shown in fig. 8, the wave combining unit 10 further includes: the input end of the first coupler 12 is connected with the N wave combining ports 11, and the output end of the first coupler 12 is connected with the optical wave output port M-COM; the first coupler 12 is configured to combine the N first signal optical waves to obtain a target signal optical wave.
Therefore, the N first signal light waves can be combined through the first coupler, and therefore optical loss in the combining process can be reduced.
In one possible implementation, a plurality of couplers may be disposed between the N multiplexer ports 11 and the lightwave output port M-COM. Specifically, the method comprises the following steps. Referring to fig. 8, as shown in fig. 9, the multiplexing unit 10 further includes: q second couplers 15, an input end of each second coupler 15 in the Q second couplers 15 is connected with at least one wave combining port 11 in the N wave combining ports 11, and an output end of each second coupler 15 is connected with the first coupler 12; each second coupler 15 is configured to multiplex N first signal optical waves, and transmit the signal optical waves obtained by multiplexing to the first coupler 12 for multiplexing, where Q is a positive integer greater than 1.
As described above, since a plurality of second couplers may be provided so as to combine the N first signal light waves by the plurality of second couplers and the first coupler, instead of combining the N first signal light waves by one coupler, a coupler with a low coupling performance may be selected as the second coupler (and/or) the first coupler, instead of selecting a coupler with a high coupling performance, so that the use cost may be reduced.
In a possible implementation manner, as shown in fig. 10 with reference to fig. 8, the wave combining unit 10 further includes: n second optical splitters 13, an input end of each second optical splitter 13 of the N second optical splitters 13 is connected to one multiplexing port 11, a first output end of each second optical splitter 13 is connected to one first photodetector 35 of the control unit 30, a second output end of each second optical splitter 13 is connected to one moving end of the control optical switch 33 of the control unit 30, and a third output end of each second optical splitter 13 is connected to the first coupler 12.
It can be understood that, for each second optical splitter 13 in the N second optical splitters 13, one second optical splitter 13 may be a divide-by-three optical splitter, and the one second optical splitter 13 may divide one first signal light wave input from one combining port 11 into three paths, one path enters the one first photodetector 35, one path is used for connecting with one moving end of the optical switch 33, and the other path is used for transmitting to the wave splitting unit 20.
In a possible implementation manner, the splitting ratio of each second splitter 13 may specifically be 1:99.
therefore, since the N second optical splitters may be disposed in the wave combining unit to split the N first signal light waves through the N second optical splitters, the optical loss in the process of transmitting the signal light waves may be reduced by disposing the splitting ratios of the N second optical splitters.
In a possible implementation manner, as shown in fig. 11 with reference to fig. 8, the wave combining unit 10 further includes: n third optical splitters 131, an input end of each third optical splitter 131 in the N third optical splitters 131 is connected to one multiplexing port 11, and a first output end of each third optical splitter 131 is connected to one first photodetector 35 of the control unit 30; n fourth optical splitters 132, an input terminal of each fourth optical splitter 132 of the N fourth optical splitters 132 is connected to a second output terminal of one third optical splitter 131, a first output terminal of each fourth optical splitter 132 is connected to a moving terminal of the control optical switch 33 of the control unit 30, and a second output terminal of each fourth optical splitter 132 is connected to the first coupler 12.
It is understood that, for each of the N third optical splitters 131, one third optical splitter 131 may be a split optical splitter, and the one third optical splitter 131 may split a first signal light wave input from the combining port 11 into two paths, one path enters the one first photodetector 35 and the other path is used for transmitting to the one fourth optical splitter 132.
For each of the N fourth optical splitters 132, one fourth optical splitter 132 may be a split optical splitter, and the one fourth optical splitter 132 may split the signal light wave input by the one third optical splitter 131 into two paths, one path is used for connecting with one moving end of the optical switch 33, and the other path is used for transmitting to the wavelength division unit 20.
In a possible implementation manner, the splitting ratio of each third splitter 131 may be specifically 1:99; the splitting ratio of each fourth splitter 132 may be specifically 1:99.
therefore, the N third optical splitters and the N fourth optical splitters may be disposed in the wavelength combining unit to split the N first signal light waves through the N third optical splitters and the N fourth optical splitters, that is, the N first signal light waves are split through the plurality of one-to-two optical splitters, rather than the plurality of one-to-three optical splitters being selected to split the N first signal light waves, so that the use cost may be reduced.
In a possible implementation manner, as shown in fig. 12 with reference to fig. 2, the wavelength division unit 20 further includes: a third coupler 22, an input end of the third coupler 22 is connected with the optical wave input port D-COM, and an output end is connected with the N wavelength division ports 21; the third coupler 22 is configured to split the target signal optical wave to obtain N second signal optical waves.
As can be seen, since the N first signal optical waves can be demultiplexed by the third coupler, the light in the demultiplexing process can be lost.
In a possible implementation manner, as shown in fig. 13 with reference to fig. 2, the wavelength division unit 20 further includes: t wavelength selective switches 23, the T wavelength selective switches 23 are connected to the N wavelength division ports 21, the control unit 30 and the optical wave input port D-COM, and each wavelength selective switch 23 of the T wavelength selective switches 23 corresponds to at least one wavelength division port 21; t is a positive integer.
In an example, referring to fig. 13, as shown in fig. 14, the T wavelength selective switches 23 may specifically be 1 wavelength selective switch 23, and the 1 wavelength selective switch 23 may be connected to 48 wavelength division ports 21.
In another example, referring to fig. 13, as shown in fig. 15, the T wavelength selective switches 23 may specifically be 2 wavelength selective switches 23, and each wavelength selective switch 23 may be connected to 24 wavelength division ports 21.
In the embodiment of the present application, the control unit 30 is specifically configured to control the wavelength of the passable signal light wave of the corresponding wavelength division port 21 configured to each wavelength selective switch 23 according to the wavelengths of the N first signal light waves.
In a possible implementation manner, after each wavelength selective switch 23 configures the wavelength of the passable signal light wave of the corresponding wavelength division port 21, each wavelength selective switch 23 may also respectively establish the channel resource between the third coupler 22 and the corresponding wavelength division port 21, so that each second signal light wave is output by one wavelength division port 21 with matched wavelength.
In a possible implementation manner, after each wavelength selective switch respectively establishes a channel resource between the third coupler 22 and the corresponding wavelength division port 21, when the control unit 30 determines that no signal optical wave is input to the N multiplexing ports 11, the control unit 30 may control the T wavelength selective switches 23 to release the channel resource between the third coupler 22 and the corresponding wavelength division port 21.
As can be seen from this, since the control unit can configure the wavelengths of the passable signal light waves of the N wavelength division ports by the T wavelength selective switches, the efficiency of configuring the wavelengths of the passable signal light waves of the N wavelength division ports can be improved.
The embodiment of the application also provides a port configuration method. As shown in fig. 16, the method may include steps 101 to 103.
Step 101, under the condition that N wave combining ports of a wave combining unit of the wave combining and splitting system correspond to N first signal light waves input one by one, the wave combining and splitting system acquires the wavelengths of the N first signal light waves.
In a possible implementation manner, the wavelength multiplexing/demultiplexing system may obtain the wavelengths of the N first signal light waves through a control unit of the wavelength multiplexing/demultiplexing system.
It should be noted that, for the description of the control unit obtaining the wavelengths of the N first signal light waves, reference may be made to the specific description in the foregoing embodiment, and details of the embodiment of the present application are not repeated herein.
Step 102, the wavelength multiplexing/demultiplexing system configures the wavelengths of the passing signal optical waves of the N demultiplexing ports of the demultiplexing unit of the wavelength multiplexing/demultiplexing system according to the wavelengths of the N first signal optical waves.
In one example, for each of the N combining ports, the control unit of the combining and splitting system may configure the wavelength of the first signal optical wave corresponding to one combining port as the wavelength of the passable signal optical wave corresponding to one splitting port.
In another example, for each of the N combining ports, the control unit of the combining and splitting system may first adjust a value of a certain module (for example, an attenuation value of the adjustable attenuator) in the control unit, so that the wavelength of the first signal optical wave corresponding to one combining port acquired by the control unit changes, and thus the control unit may configure the changed wavelength of the first signal optical wave corresponding to the one combining port as the wavelength of the passable signal optical wave of the corresponding one splitting port.
In a possible implementation manner, as shown in fig. 17 with reference to fig. 16, before the step 102, the port configuration method provided in the embodiment of the present application may further include the following step 201 and step 202, and the step 102 may be specifically implemented by the following step 102 a.
Step 201, the multiplexing and demultiplexing system obtains port identifiers of N multiplexing ports.
In a possible implementation manner, the wavelength multiplexing and demultiplexing system may obtain port identifiers of the N wavelength multiplexing ports through the control unit.
The port identifier may be a port number.
Step 202, for each of the N multiplexing ports, the multiplexing/demultiplexing system determines a demultiplexing port matched with a port identifier of one multiplexing port.
In a possible implementation manner, for each combined wave port in the N combined wave ports, the combined wave and splitting system may determine a wave splitting port matched with a port identifier of one combined wave port by using a plurality of association relations. Wherein each association is an association between a first port identifier and a second port identifier.
Specifically, for each combined wave port in the N combined wave ports, the combined wave and split wave system may determine, from a plurality of first port identifiers in a plurality of association relationships, one first port identifier that is the same as a port identifier of one combined wave port, and then determine one second port identifier that is associated with the one first port identifier, so that the combined wave and split wave system may determine a split wave port whose port identifier is the same as the one second port identifier as a split wave port that is matched with the port identifier of the one combined wave port.
Step 102a, for each combined wave port in the N combined wave ports, the combined wave and splitting system configures a wavelength of a passing signal light wave of a splitting port corresponding to one combined wave port according to a wavelength of a first signal light wave corresponding to one combined wave port.
Therefore, since the wavelength of the passing signal light wave corresponding to the wavelength division port corresponding to each multiplexing port can be configured by the multiplexing/demultiplexing system according to the wavelength of the first signal light wave corresponding to each multiplexing port, the wavelength of the passing signal light wave corresponding to each demultiplexing port can be directly determined during system debugging without checking the matching between the wavelength of the multiplexing/demultiplexing port and the wavelength of the signal light wave.
And 103, the wave combining and splitting system respectively controls each second signal light wave in the N second signal light waves and outputs the second signal light waves through a wave splitting port matched with the wavelength.
In an embodiment of the present application, the N second signal light waves are: the wave splitting unit is used for splitting the target signal light wave to obtain a signal light wave; the target signal light wave is: the wave combining unit is used for combining the N first signal light waves to obtain signal light waves and outputting the signal light waves to the wave splitting unit.
According to the port configuration method provided by the embodiment of the application, the wavelength of N first signal light waves input by N multiplexing ports in a one-to-one correspondence manner can be obtained by the multiplexing/demultiplexing system, and the wavelengths of the passing signal light waves of N demultiplexing ports are configured according to the wavelengths of the N first signal light waves, so as to respectively control each second signal light wave to be output by one demultiplexing port matched with the wavelength, instead of specifying the wavelengths of the passing signal light waves by each multiplexing port and each demultiplexing port, therefore, in the process of using the wavelength division multiplexing transmission system, whether the wavelengths of the signal light waves are matched with the wavelengths of the passing signal light waves of the multiplexing port (and/or demultiplexing port) does not need to be checked, and the transmission efficiency of using the wavelength division multiplexing transmission system can be improved.
In a possible implementation manner, before the "wavelength division multiplexing/demultiplexing system acquires the wavelengths of the N first signal light waves" in the step 101, the port configuration method provided in this embodiment may further include the following steps 301 to 303, and the step 101 may be specifically implemented by the following step 101 a.
Step 301, the multiplexing/demultiplexing system acquires a first detection optical power value and a second detection optical power value.
In an embodiment of the present application, the first detection optical power value is: the target photoelectric detector detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value; the second detected optical power value is: and a second photoelectric detector of a spectrum scanning module of the control unit detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value. The target photodetector is: any one of the N first photodetectors of the control unit; the target wave combining port is as follows: and a wave combining port corresponding to the target photoelectric detector.
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 may obtain the first detected optical power value through detection by the target photodetector.
In a possible implementation manner, the control unit may control the target moving end of the optical switch to be connected to the stationary end, so that the control unit may obtain the second detected optical power value through detection by the second photodetector.
Step 302, the multiplexing/demultiplexing system adjusts the attenuation value of the adjustable attenuator of the spectrum scanning module according to the first detection optical power value and the second detection optical power value.
In a possible implementation manner, the combining and splitting system may calculate, by using the first detection light power value and the second detection light power value, through the control unit to obtain an attenuation value, so that the control unit may adjust the attenuation value of the adjustable attenuator of the spectrum scanning module according to the attenuation value.
In a possible implementation manner, the target wavelength combining port is connected to the target photodetector through the target optical splitter. Specifically, the step 302 can be realized by the following steps 302a and 302 b.
Step 302a, the combining and splitting system calculates to obtain a target attenuation value according to the first detection light power value, the second detection light power value, the splitting ratio of the target splitter and the splitting ratio of the first splitter by using a target algorithm.
In the embodiment of the present application, the target algorithm is:
A＝P1-20+P2-10lg(α 1 ·α 2 )；
a is a target value, P1 is a first detected optical power value, P2 is a second detected optical power value, α 1 Is the splitting ratio of the target splitter, alpha 2 Is the splitting ratio of the first splitter.
It can be understood that, because there is an insertion loss between the input signal from the target wavelength multiplexing port and the optical channel monitor 344, the insertion loss can be calculated by 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 bandwidth of-20 dB of the signal light input from the wavelength multiplexing port. In addition, since the target photodetector and the second photodetector detect split light, the split ratio between the target splitter and the first splitter needs to be considered.
Step 302b, the combined wave and wave division system adjusts the attenuation value of the adjustable attenuator to a target attenuation value;
it will be appreciated that the adjusted attenuation value of the adjustable attenuator is the target attenuation value.
Step 303, the wavelength of the first signal light wave corresponding to the target wavelength combining port is determined by the wavelength combining and splitting system according to the light wave parameter of the signal light wave output by the second output end of the first optical splitter through the optical channel monitor of the spectrum scanning module.
In a possible implementation, the optical wave parameter may include at least one of: center frequency, spectral width.
In the embodiment of the present application, the optical wave parameter of the signal optical wave output from the second output terminal of the first optical splitter is related to the adjusted attenuation value of the adjustable attenuator.
It will be understood that after the attenuation value of the adjustable attenuator is adjusted to the target attenuation value, the optical wave parameter of the signal optical wave input to the first optical splitter by the adjustable attenuator changes, and therefore, the optical wave parameter of the signal optical wave output from the second output terminal of the first optical splitter changes, i.e., the optical wave parameter of the signal optical wave output from the second output terminal of the first optical splitter is associated with the adjusted attenuation value of the adjustable attenuator.
Therefore, since the optical channel monitor can determine the wavelength of the first signal optical wave corresponding to the target combining port according to the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter, and the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is associated with the adjusted attenuation value of the adjustable attenuator, the wavelength of the first signal optical wave corresponding to the target combining port can be made different from the wavelength of the passing signal optical wave of the splitting port corresponding to the target combining port by adjusting the attenuation value of the adjustable attenuator, thereby achieving the effect of adaptively adjusting the wavelength of the passing signal optical wave of the splitting port.
All the schemes in the above embodiments of the present application can be combined without contradiction.
In the embodiment of the present application, the port configuration apparatus may be divided into the functional modules or the functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware, or may also be implemented in the form of a software functional module or functional unit. The division of the modules or units in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In the case of dividing each functional module according to each function, fig. 18 shows a schematic structural diagram of a port configuration device 70, where the port configuration device 70 may be a multiplexing/demultiplexing system, and may also be a chip applied to the multiplexing/demultiplexing system, and the port configuration device 70 may be configured to perform the functions of the multiplexing/demultiplexing system in the above embodiments. The port configuration device 70 shown in fig. 18 may include: an acquisition module 701 and a processing module 702.
The obtaining module 701 is configured to obtain wavelengths of N first signal optical waves when N first signal optical waves input by N multiplexing ports of a multiplexing unit of the port configuration device 70 correspond to one another. A processing module 702, configured to configure, according to the wavelengths of the N first signal optical waves acquired by the acquiring module 701, wavelengths of the signal optical waves that can pass through the N wavelength division ports of the wavelength division unit of the port configuration device 70; and each second signal light wave in the N second signal light waves is respectively controlled and output by a wavelength division port matched with the wavelength. Wherein the N second signal light waves are: the wave splitting unit is used for splitting the target signal light wave to obtain a signal light wave; the target signal light wave is: the wave combining unit is used for combining the N first signal light waves to obtain signal light waves and outputting the signal light waves to the wave splitting unit.
In a possible implementation manner, the obtaining module 701 is further configured to obtain port identifiers of the N multiplexing ports. The processing module 702 is further configured to determine, for each combined wave port in the N combined wave ports, a wavelength division port that matches the port identifier of the combined wave port acquired by the acquiring module 701. The processing module 702 is specifically configured to configure, for each combined wave port of the N combined wave ports, a wavelength of a passing signal optical wave of a wavelength division port corresponding to one combined wave port according to a wavelength of a first signal optical wave corresponding to the one combined wave port.
In a possible implementation manner, the obtaining module 701 is further configured to obtain a first detection optical power value and a second detection optical power value; the first detection optical power value is: the target photoelectric detector detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value; the second detected optical power value is: and a second photoelectric detector of a spectrum scanning module of the control unit detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value. The processing module 702 is further configured to adjust an attenuation value of an adjustable attenuator of the spectrum scanning module according to the first detected light power value and the second detected light power value obtained by the obtaining module 701; determining the wavelength of a first signal light wave corresponding to the target wave combining port according to the light wave parameters of the signal light wave output by the second output end of the first optical splitter through an optical channel monitor of the spectrum scanning module; the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is related to the adjusted attenuation value of the adjustable attenuator. Wherein, the target photoelectric detector is: any one of the N first photodetectors of the control unit; the target wave combining port is as follows: and the multiplexing port corresponds to the target photoelectric detector.
In a possible implementation manner, the target wavelength combining port is connected to the target photodetector through the target optical splitter. The processing module 702 is specifically configured to calculate a target attenuation value according to the first detection light power value, the second detection light power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter by using a target algorithm; and adjusting the attenuation value of the adjustable attenuator to be the target attenuation value. Wherein, the target algorithm is as follows: a = P1-20 P2-10lg (alpha) 1 ·α 2 ) (ii) a A is a target value, P1 is a first detected optical power value, P2 is a second detected optical power value, α 1 Is the splitting ratio of the target splitter, alpha 2 Is the splitting ratio of the first splitter.
As yet another implementation, the modules in fig. 18, including the obtaining module 701 and the processing module 702, may be replaced by a processor, which may integrate the functions of the modules in fig. 18.
The embodiment of the application also provides a computer readable storage medium. All or part of the processes in the above method embodiments may be performed by a computer program instructing related hardware, where the program may be stored in the above computer-readable storage medium, and when executed, the program may include the processes in the above method embodiments. The computer readable storage medium may be an internal storage unit of the multiplexing and demultiplexing system in any of the foregoing embodiments, for example, a hard disk or a memory of the multiplexing and demultiplexing system. The computer readable storage medium may also be an external storage device of the terminal device, such as a plug-in hard disk, a smart card (SMC), a Secure Digital (SD) card, a flash card (flash card), and the like, which are provided on the terminal device. Further, the computer-readable storage medium may include both an internal storage unit and an external storage device of the multiplexing/demultiplexing system. The computer-readable storage medium is used for storing the computer program and other programs and data required by the multiplexing/demultiplexing system. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
It should be noted that the terms "first" and "second" and the like in the description, claims, and drawings of the present application are used for distinguishing different objects, and are not used for describing a specific order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more, "at least two" means two or three and three or more, "and/or" for describing an association relationship of associated objects, meaning that three relationships may exist, for example, "a and/or B" may mean: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
Through the description of the foregoing embodiments, it will be clear to those skilled in the art that, for convenience and simplicity of description, only the division of the functional modules is illustrated, and in practical applications, the above function distribution may be completed by different functional modules as needed, that is, the internal structure of the apparatus may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application, or portions of the technical solutions that substantially contribute to the prior art, or all or portions of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (21)

1. A multiplexing/demultiplexing system, comprising:
the device comprises a wave combining unit, a signal processing unit and a signal processing unit, wherein the wave combining unit comprises N wave combining ports and an optical wave output port; the wave combining unit is configured to combine N first signal optical waves input to the N wave combining ports in a one-to-one correspondence manner, and output a target signal optical wave obtained by combining waves from the optical wave output port;
the optical fiber branching unit comprises N branching ports and an optical wave input port; the optical wave input port is connected with the optical wave output port; the wave division unit is used for carrying out wave division on the target signal light waves received by the 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;
the control unit is connected with the wave combining unit and the wave dividing unit; the control unit is used for configuring the wavelengths of the passing signal light waves of the N wavelength division ports according to the wavelengths of the N first signal light waves, respectively controlling each second signal light wave, and outputting the second signal light wave through one wavelength division port matched with the wavelength;
wherein N is a positive integer greater than 1.
2. The multiplexing and demultiplexing system according to claim 1, wherein said control unit comprises:
each first photoelectric detector in the N first photoelectric detectors is connected with one wave combining port; each first photoelectric detector is used for detecting whether the corresponding wave combining port inputs a first signal light wave or not;
the spectrum scanning module can be connected with the N wave combining ports;
the controller is connected with the N first photodetectors and the spectrum scanning module;
the controller is configured to control the spectrum scanning module to be connected with the target wave combining port and control the spectrum scanning module to scan to obtain a wavelength of a first signal light wave output by the target wave combining port when the target photodetector detects that the first signal light wave is input by the target wave combining port;
the target photodetector is: any one of the N first photodetectors; the target wave combining port is as follows: and the wave combining port corresponds to the target photoelectric detector.
3. The wave combining and splitting system according to claim 2, wherein the control unit further comprises:
the M analog switches are connected with the N first photodetectors and the controller, and each analog switch in the M analog switches corresponds to at least one first photodetector;
the controller is further used for respectively controlling each analog switch to be sequentially connected with the corresponding first photoelectric detector; m is a positive integer.
4. The multiplexing and demultiplexing system according to claim 2, wherein said control unit further comprises:
the control optical switch comprises N movable ends and a fixed end, each movable end of the N movable ends is connected with a wave combining port, and the fixed end is connected with the spectrum scanning module; the control optical switch is also connected with the controller;
the controller is specifically configured to control a target moving end to be connected with the stationary end when the target photoelectric detector detects that the target wave combining port inputs the first signal light wave;
the target moving end is as follows: and among the N moving ends, the moving end corresponding to the target wave combining port.
5. The wave combining and splitting system according to claim 2, wherein the spectrum scanning module comprises:
an adjustable attenuator;
the input end of the first optical splitter is connected with the adjustable attenuator;
the second photoelectric detector is connected with the first output end of the first optical splitter;
the optical channel monitor is connected with the second output end of the first optical splitter;
wherein the adjustable attenuator is configured to adjust an 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 a wavelength of a first signal optical wave corresponding to the target wave combining port according to an optical wave parameter of the signal optical wave output by the second output end of the first optical splitter; the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is related to the adjusted attenuation value of the adjustable attenuator.
6. The multiplexing and demultiplexing system according to claim 1, wherein said multiplexing unit further comprises:
the input end of the first coupler is connected with the N wave combining ports, and the output end of the first coupler is connected with the optical wave output port; the first coupler is configured to combine the N first signal optical waves to obtain the target signal optical wave.
7. The multiplexing and demultiplexing system according to claim 6, wherein said multiplexing unit further comprises:
the input end of each second optical splitter in the N second optical splitters is connected with one wave-combining port, the first output end of each second optical splitter is connected with one first photoelectric detector of the control unit, the second output end of each second optical splitter is connected with one movable end of a control optical switch of the control unit, and the third output end of each second optical splitter is connected with the first coupler.
8. The wave combining and splitting system according to claim 6, wherein the wave combining unit further comprises:
the input end of each third optical splitter in the N third optical splitters is connected with one multiplexing port, and the first output end of each third optical splitter is connected with one first photoelectric detector of the control unit;
the input end of each fourth optical splitter of the N fourth optical splitters is connected with the second output end of one third optical splitter, the first output end of each fourth optical splitter is connected with one movable end of a control optical switch of the control unit, and the second output end of each fourth optical splitter is connected with the first coupler.
9. The wave combining and splitting system according to claim 6, wherein the wave combining unit further comprises:
q second couplers, wherein the input end of each second coupler in the Q second couplers is connected with at least one wave-combining port in the N wave-combining ports, and the output end of each second coupler is connected with the first coupler; each second coupler is used for combining the N first signal light waves and transmitting the signal light waves obtained through wave combination to the first couplers for wave combination, and Q is a positive integer larger than 1.
10. The multiplexing and demultiplexing system according to claim 1, wherein said demultiplexing unit further comprises:
the input end of the third coupler is connected with the optical wave input port, and the output end of the third coupler is connected with the N wavelength division ports; and the third coupler is used for splitting the target signal light waves to obtain the N second signal light waves.
11. The wave combining and splitting system according to claim 10, wherein the wave splitting unit further comprises:
t wavelength selective switches, connected to the N wavelength division ports, the control unit, and the optical wave input port, each of the T wavelength selective switches corresponding to at least one wavelength division port;
the control unit is specifically configured to control, according to the wavelengths of the N first signal optical waves, the wavelength of the signal optical wave that can pass through the wavelength division port corresponding to each wavelength selective switch configuration; t is a positive integer.
12. A port configuration method applied to the multiplexing/demultiplexing system according to any one of claims 1 to 11, the method comprising:
acquiring the wavelengths of N first signal light waves under the condition that N wave combining ports of a wave combining unit of the wave combining and splitting system correspond to the N input first signal light waves one by one;
according to the wavelengths of the N first signal light waves, the wavelengths of the signal light waves which can pass through N wave division ports of the wave division unit of the wave combination and division system are configured;
respectively controlling each second signal light wave in the N second signal light waves, and outputting the second signal light waves through a wavelength division port matched with the wavelength;
wherein the N second signal light waves are: the wave division unit divides the target signal light wave into signal light waves; the target signal light wave is: and the wave combining unit is used for combining the N first signal light waves to obtain signal light waves and outputting the signal light waves to the wave splitting unit.
13. The method according to claim 12, wherein before the configuring the wavelengths of the signal optical waves that can pass through the N wavelength-splitting ports of the wavelength-splitting units of the wavelength-division multiplexing and demultiplexing system according to the wavelengths of the N first signal optical waves, the method further comprises:
acquiring port identifiers of the N wave-combining ports;
determining a wavelength division port matched with the port identification of a multiplexing port aiming at each multiplexing port in the N multiplexing ports;
the configuring, according to the wavelengths of the N first signal optical waves, the wavelengths of the signal optical waves that can pass through the N wavelength division ports of the wavelength division unit of the wavelength combining and splitting system includes:
and configuring the wavelength of the passing signal light wave of the wavelength division port corresponding to one combined wave port according to the wavelength of the first signal light wave corresponding to the one combined wave port aiming at each combined wave port in the N combined wave ports.
14. The method of claim 12, wherein prior to said acquiring the wavelengths of the N first signal light waves, the method further comprises:
acquiring a first detection optical power value and a second detection optical power value; the first detection optical power value is: the target photoelectric detector detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value; the second detection optical power value is: a second photoelectric detector of the spectrum scanning module of the control unit detects a first signal light wave corresponding to the target wave combining port to obtain a detection light power value;
adjusting an attenuation value of an adjustable attenuator of the spectrum 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 wave combining port according to the light wave parameter of the signal light wave output by the second output end of the first optical splitter through an optical channel monitor of the spectrum scanning module; the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is associated with the adjusted attenuation value of the adjustable attenuator;
wherein the target photodetector is: any one of the N first photodetectors of the control unit; the target wave combining port is as follows: and the wave combining port corresponds to the target photoelectric detector.
15. The method of claim 14, wherein the target combiner port is connected to the target photodetector through a target splitter;
the adjusting an attenuation value of an adjustable attenuator of the spectral scanning module based on the first detection optical power value and the second detection optical power value includes:
calculating a target attenuation value according to the first detection light power value, the second detection light power value, the splitting ratio of the target optical splitter and the splitting ratio of the first optical splitter by adopting a target algorithm;
adjusting the attenuation value of the adjustable attenuator to the target attenuation value;
wherein the target algorithm is as follows:
A＝P1-20+P2-10lg(α 1 ·α 2 )；
a is a target value, P1 is the first detection optical power value, P2 is the second detection optical power value, alpha 1 Is the splitting ratio of the target splitter, alpha 2 Is the splitting ratio of the first splitter.
16. A port configuration apparatus, characterized in that the port configuration apparatus comprises: the device comprises an acquisition module and a processing module;
the acquiring module is configured to acquire wavelengths of the N first signal optical waves under the condition that N wave combining ports of a wave combining unit of the port configuration device correspond to the N first signal optical waves input in a one-to-one manner;
the processing module is configured to configure, according to the wavelengths of the N first signal optical waves acquired by the acquisition module, wavelengths of the signal optical waves that can pass through the N wavelength division ports of the wavelength division unit of the port configuration device; and respectively controlling each second signal light wave in the N second signal light waves to be output by a wavelength division port matched with the wavelength;
wherein the N second signal light waves are: the wave division unit divides the target signal light wave into signal light waves; the target signal light wave is: and the wave combining unit is used for combining the N first signal light waves to obtain signal light waves and outputting the signal light waves to the wave splitting unit.
17. The port configuration device of claim 16,
the acquisition module is further configured to acquire port identifiers of the N multiplexing ports;
the processing module is further configured to determine, for each combined wave port of the N combined wave ports, a wavelength division port that matches the port identifier of one combined wave port acquired by the acquisition module;
the processing module is specifically configured to configure, for each combined wave port of the N combined wave ports, a wavelength of a passing signal optical wave of the wavelength division port corresponding to one combined wave port according to a wavelength of a first signal optical wave corresponding to the one combined wave port.
18. The port configuration device of claim 16,
the acquiring module is further configured to acquire a first detection optical power value and a second detection optical power value; the first detection optical power value is: the target photoelectric detector detects the first signal light wave corresponding to the target wave combining port to obtain a detection light power value; the second detection optical power value is: a second photoelectric detector of a spectrum scanning module of the control unit detects a first signal light wave corresponding to the target wave combining port to obtain a detection light power value;
the processing module is further configured to adjust an attenuation value of an adjustable attenuator of the spectrum scanning module according to the first detection light power value and the second detection light power value obtained by the obtaining module; determining the wavelength of the first signal light wave corresponding to the target wave combining port according to the light wave parameters of the signal light wave output by the second output end of the first optical splitter through an optical channel monitor of the spectrum scanning module; the optical wave parameter of the signal optical wave output by the second output end of the first optical splitter is associated with the adjusted attenuation value of the adjustable attenuator;
wherein the target photodetector is: any one of N first photodetectors of the control unit; the target wave combining port is as follows: and the wave combining port corresponds to the target photoelectric detector.
19. The port configuration device of claim 18, wherein the target combiner port is connected to the target photodetector through a target splitter;
the processing module is specifically configured to calculate a target attenuation value according to the first detection optical power value, the second detection optical power value, the splitting ratio of the target optical splitter, and the splitting ratio of the first optical splitter by using a target algorithm; adjusting the attenuation value of the adjustable attenuator to the target attenuation value;
wherein the target algorithm is as follows:
A＝P1-20+P2-10lg(α 1 ·α 2 )；
a is a target value, P1 is the first detection optical power value, P2 is the second detection optical power value, α 1 Is the splitting ratio of the target splitter, alpha 2 Is the splitting ratio of the first splitter.
20. A port configuration device, comprising: a processor, a memory, and a communication interface; wherein, the communication interface is used for the port configuration device to communicate; the memory for storing one or more programs, the one or more programs comprising computer-executable instructions that, when executed by the port configuration device, are executable by the processor to cause the port configuration device to perform the method of any of claims 12 to 15.
21. A computer-readable storage medium having stored therein instructions that, when executed, implement the method of any one of claims 12 to 15.
CN202211358413.8A 2022-11-01 2022-11-01 Multiplexing/demultiplexing system, port configuration method, port configuration device and computer-readable storage medium Pending CN115694712A (en)

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