Wavelength channel shaping method, apparatus, and storage medium

Abstract

The present disclosure provides a wavelength channel shaping method and device and storage medium, relates to the technical field of communication, and solves the technical problems that the spectrum shape may be deformed after the wavelength is amplified for multiple times, the optical signal-to-noise ratio of the optical channel is reduced, and the bit error rate is increased in the related art. The method comprises the following steps: obtaining a spectrum graph of a first wavelength and a spectrum graph of a second wavelength of a wavelength channel; determining first spectral density information of the first wavelength based on the spectrum graph of the first wavelength, and determining second spectral density information of the second wavelength based on the spectrum graph of the second wavelength; generating target variable optical attenuator (VOA) configuration information based on the first spectral density information and the second spectral density information; and adjusting the VOA configuration of the second wavelength to a target VOA configuration in the target VOA configuration information based on a preset model. The present disclosure is used in the scene of wavelength channel shaping.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a wavelength channel shaping method, apparatus and storage medium. Background Technology

[0002] Currently, in wavelength division multiplexing (WDM) systems, a common method for optical signal equalization is to use wavelength selective switches (WSS) to equalize the optical signals in multiple optical channels. However, this method does not equalize the waveform of a single optical channel. After the wavelength is amplified multiple times, the spectral shape may be distorted, which leads to a decrease in the optical signal-to-noise ratio and an increase in the bit error rate of the optical channel. Summary of the Invention

[0003] This disclosure provides a wavelength channel shaping method, apparatus, and storage medium, which solves the technical problem in related technologies that the spectral shape may be distorted after the wavelength is amplified multiple times, resulting in a decrease in the optical signal-to-noise ratio of the optical channel and an increase in the bit error rate.

[0004] To achieve the above objectives, the present disclosure adopts the following technical solution: In a first aspect, a wavelength channel shaping method is provided, comprising: acquiring a spectral shape diagram of a first wavelength and a spectral shape diagram of a second wavelength of the wavelength channel; the first wavelength being the initial wavelength emitted by the source node; the second wavelength being the wavelength amplified during transmission of the first wavelength; determining first spectral density information of the first wavelength based on the spectral shape diagram of the first wavelength, and determining second spectral density information of the second wavelength based on the spectral shape diagram of the second wavelength; generating target adjustable optical attenuator (VOA) configuration information based on the first and second spectral density information; the target VOA configuration information being used to adjust the spectral shape of the second wavelength to match the spectral shape of the first wavelength; adjusting the VOA configuration of the second wavelength to match the target VOA configuration in the target VOA configuration information based on a preset model; the preset model being used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes the VOA configuration information.

[0005] In conjunction with the first aspect above, in one possible implementation, the method further includes: acquiring a spectral image of a third wavelength; adjusting the VOA configuration information of the second wavelength to the wavelength of the target VOA configuration information after target VOA configuration; determining the spectral image of the third wavelength as the target wavelength spectral image based on the similarity between the spectral image of the first wavelength and the spectral image of the third wavelength; the target wavelength spectral image is the spectral image of a wavelength with an optical signal-to-noise ratio greater than a first preset threshold.

[0006] In conjunction with the first aspect mentioned above, in one possible implementation, the method specifically includes: determining the spectral density information of the third wavelength based on the spectral shape of the third wavelength; and determining the spectral shape of the third wavelength as the target wavelength spectral shape when the similarity between the spectral density information of the third wavelength and the spectral density information of the first wavelength is greater than a second preset threshold.

[0007] In conjunction with the first aspect mentioned above, in one possible implementation, the target VOA configuration information includes multiple target VOA values; the second wavelength includes multiple sub-wavelengths, each sub-wavelength corresponding to a target VOA value. The method specifically includes: determining the target VOA value corresponding to each sub-wavelength of the second wavelength based on the first spectral density information and the second spectral density information; and adjusting the VOA value of each sub-wavelength of the second wavelength to the target VOA value corresponding to each sub-wavelength through a preset model.

[0008] In conjunction with the first aspect mentioned above, in one possible implementation, the attribute information of the wavelength channel further includes: the index value of the wavelength channel, the lower frequency limit of the wavelength channel, and the upper frequency limit of the wavelength channel. The method further includes: adjusting the index value of the wavelength channel to a target index value, adjusting the lower frequency limit of the wavelength channel to a target lower frequency limit, and adjusting the upper frequency limit of the wavelength channel to a target lower frequency limit based on a preset model; the target index value, the target lower frequency limit, and the target upper frequency limit are used to unify the interface of the wavelength channel.

[0009] Secondly, a wavelength channel shaping device is provided, comprising: a communication unit and a processing unit; the communication unit is used to acquire a spectral shape diagram of a first wavelength and a spectral shape diagram of a second wavelength of the wavelength channel; the first wavelength is the initial wavelength emitted by the source node; the second wavelength is the wavelength amplified during transmission of the first wavelength; the processing unit is used to determine first spectral density information of the first wavelength based on the spectral shape diagram of the first wavelength, and to determine second spectral density information of the second wavelength based on the spectral shape diagram of the second wavelength; the processing unit is used to generate target adjustable optical attenuator (VOA) configuration information based on the first and second spectral density information; the target VOA configuration information is used to adjust the spectral shape of the second wavelength to match the spectral shape of the first wavelength; the communication unit is used to adjust the VOA configuration of the second wavelength to match the target VOA configuration in the target VOA configuration information based on a preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes VOA configuration information.

[0010] In conjunction with the second aspect above, in one possible implementation, the processing unit is further configured to: instruct the communication unit to acquire the spectral pattern of the third wavelength; adjust the VOA configuration information of the second wavelength to the wavelength configured for the target VOA in the target VOA configuration information; determine the spectral pattern of the third wavelength as the target wavelength spectral pattern based on the similarity between the spectral pattern of the first wavelength and the spectral pattern of the third wavelength; the target wavelength spectral pattern is the spectral pattern of a wavelength with an optical signal-to-noise ratio greater than a first preset threshold.

[0011] In conjunction with the second aspect above, in one possible implementation, the processing unit is specifically used to: determine the spectral density information of the third wavelength based on the spectral shape of the third wavelength; and determine the spectral shape of the third wavelength as the target wavelength spectral shape when the similarity between the spectral density information of the third wavelength and the spectral density information of the first wavelength is greater than a second preset threshold.

[0012] In conjunction with the second aspect above, in one possible implementation, the target VOA configuration information includes multiple target VOA values; the second wavelength includes multiple sub-wavelengths, each sub-wavelength corresponding to a target VOA value; the processing unit is specifically used to: determine the target VOA value corresponding to each sub-wavelength of the second wavelength based on the first spectral density information and the second spectral density information; and adjust the VOA value of each sub-wavelength of the second wavelength to the target VOA value corresponding to each sub-wavelength through a preset model.

[0013] In conjunction with the second aspect above, in one possible implementation, the attribute information of the wavelength channel further includes: the index value of the wavelength channel, the lower frequency limit of the wavelength channel, and the upper frequency limit of the wavelength channel. The processing unit is also used to: adjust the index value of the wavelength channel to the target index value, adjust the lower frequency limit of the wavelength channel to the target lower frequency limit, and adjust the upper frequency limit of the wavelength channel to the target lower frequency limit based on a preset model; the target index value, the target lower frequency limit, and the target upper frequency limit are used to unify the interface of the wavelength channel.

[0014] Thirdly, a wavelength channel shaping apparatus is provided, comprising: a processor and a memory; wherein the memory is used to store computer execution instructions, and when the wavelength channel shaping apparatus is running, the processor executes the computer execution instructions stored in the memory to cause the wavelength channel shaping apparatus to perform the wavelength channel shaping method as described in the first aspect and any possible implementation thereof.

[0015] Fourthly, a computer-readable storage medium is provided, which stores instructions that, when executed by a processor of a wavelength channel shaping apparatus, cause the wavelength channel shaping apparatus to perform the wavelength channel shaping method as described in the first aspect and any possible implementation thereof.

[0016] Fifthly, a chip is provided, the chip including a processor and a communication interface, the communication interface and the processor being coupled, the processor being used to run computer programs or instructions to implement the wavelength channel shaping method as described in the first aspect above and any possible implementation thereof.

[0017] In this disclosure, the names of the aforementioned wavelength channel shaping devices do not limit the devices or functional modules themselves. In actual implementation, these devices or functional modules may appear under other names. As long as the functions of each device or functional module are similar to those of this disclosure, they fall within the scope of this disclosure and its equivalents.

[0018] The technical solution provided in this disclosure brings at least the following beneficial effects: The wavelength channel shaping device in this disclosure first obtains the spectral shape diagram of the first wavelength and the spectral shape diagram of the second wavelength of the wavelength channel; the first wavelength is the initial wavelength emitted by the source node; the second wavelength is the wavelength amplified by the first wavelength during transmission; the first spectral density information of the first wavelength is determined based on the spectral shape diagram of the first wavelength, and the second spectral density information of the second wavelength is determined based on the spectral shape diagram of the second wavelength; the target adjustable optical attenuator (VOA) configuration information is generated based on the first spectral density information and the second spectral density information; the target VOA configuration information is used to adjust the spectral shape of the second wavelength to the spectral shape of the first wavelength; that is, the target VOA configuration information for adjusting the spectral shape of the second wavelength to the spectral shape of the first wavelength is determined; the VOA configuration of the second wavelength is adjusted to the target VOA configuration in the target VOA configuration information based on the preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes the VOA configuration information. By adjusting the VOA configuration information of the second wavelength to the target VOA configuration information using a preset model, and adjusting the spectral shape of the second wavelength that has been distorted to the spectral shape of the initial wavelength, the technical problem of spectral shape distortion, reduced optical signal-to-noise ratio, and increased bit error rate of the optical channel after multiple amplifications of the wavelength is solved. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of a wavelength channel shaping system provided in an embodiment of the present disclosure; Figure 2 A spectral diagram of the first wavelength of a wavelength channel provided in an embodiment of this disclosure; Figure 3 A spectral pattern of the second wavelength of a wavelength channel provided in an embodiment of this disclosure; Figure 4 This is a schematic diagram of the hardware structure of a wavelength channel shaping device provided in an embodiment of the present disclosure; Figure 5 A schematic flowchart illustrating a wavelength channel shaping method provided in an embodiment of this disclosure; Figure 6 A VOA configuration diagram for a wavelength channel provided in an embodiment of this disclosure; Figure 7 A schematic flowchart illustrating yet another wavelength channel shaping method provided in this disclosure embodiment; Figure 8 A schematic flowchart illustrating yet another wavelength channel shaping method provided in this disclosure embodiment; Figure 9 A schematic flowchart illustrating yet another wavelength channel shaping method provided in this disclosure embodiment; Figure 10 This is a schematic diagram of the structure of a WSS channel and a wavelength channel provided in an embodiment of the present disclosure; Figure 11 A schematic flowchart illustrating yet another wavelength channel shaping method provided in this disclosure embodiment; Figure 12 This is a schematic diagram of a wavelength channel shaping process provided in an embodiment of the present disclosure; Figure 13 This is a schematic diagram of the structure of a wavelength channel shaping device provided in an embodiment of the present disclosure. Detailed Implementation

[0021] The wavelength channel shaping method, apparatus, and storage medium provided in this disclosure will now be described in detail with reference to the accompanying drawings.

[0022] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0023] The terms “first” and “second” in this disclosure and its accompanying drawings are used to distinguish different objects or to distinguish different treatments of the same object, rather than to describe a particular order of objects.

[0024] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this disclosure are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or apparatus. It should be noted that in the embodiments of this disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this disclosure should not be construed as preferred or advantageous over other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0025] In the description of this disclosure, unless otherwise stated, "multiple" means two or more.

[0026] The following explanations of the terms used in the embodiments of this disclosure are provided to facilitate the reader's understanding.

[0027] 1. Wavelength Selection Switch (Windows SharePoint Services, WSS) The WSS (Wavelength Selector Switch) is a core component in reconfigurable optical add-drop multiplexing (ROADM) nodes of optical communication networks. Its function is to output a selected wavelength signal from multiple input wavelength signals to a designated port. WSS modules are used on optical communication network connection nodes to achieve dynamic, reconfigurable all-optical signal upload and download connections. It is currently the most technologically advanced and structurally complex type of optical module, placing high demands on its optical components.

[0028] 2. Wavelength Division Multiplexing Wavelength division multiplexing (WDM) is a technique that combines two or more optical carrier signals of different wavelengths (carrying various information) at the transmitting end using a multiplexer (also called a multiplexer) and couples them into the same optical fiber for transmission. At the receiving end, a demultiplexer (also called a demultiplexer) separates the optical carriers of various wavelengths, and then the optical receiver performs further processing to recover the original signal. This technique of simultaneously transmitting two or more different wavelength optical signals in the same optical fiber is called wavelength division multiplexing. This solution is used to address the technical problem in wavelength division multiplexing scenarios where the spectral shape of the light wave may be distorted after multiple amplifications, leading to a decrease in the optical signal-to-noise ratio and an increase in the bit error rate of the optical channel.

[0029] Currently, in wavelength division multiplexing (WDM) systems, a common method for optical signal equalization is to use WSS devices to equalize the optical signals in multiple optical channels. However, this method does not equalize the waveform of a single optical channel. After the wavelength is amplified multiple times, the spectral shape may be distorted, which leads to a decrease in the optical signal-to-noise ratio and an increase in the bit error rate of the optical channel.

[0030] To address the aforementioned technical problems, this disclosure provides a wavelength channel shaping method, apparatus, and storage medium to solve the technical problem that the spectral shape may be distorted after multiple amplifications of the wavelength, resulting in a decrease in the optical signal-to-noise ratio and an increase in the bit error rate of the optical channel. The method includes: acquiring a spectral shape diagram of a first wavelength and a spectral shape diagram of a second wavelength in the wavelength channel; the first wavelength is the initial wavelength emitted by the source node; the second wavelength is the wavelength amplified during transmission of the first wavelength; determining first spectral density information of the first wavelength based on the spectral shape diagram of the first wavelength, and determining second spectral density information of the second wavelength based on the spectral shape diagram of the second wavelength; generating target adjustable optical attenuator (VOA) configuration information based on the first and second spectral density information; the target VOA configuration information is used to adjust the spectral shape of the second wavelength to match the spectral shape of the first wavelength; that is, target VOA configuration information for adjusting the spectral shape of the second wavelength to match the spectral shape of the first wavelength is determined; adjusting the VOA configuration of the second wavelength to match the target VOA configuration in the target VOA configuration information based on a preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes the VOA configuration information. By adjusting the VOA configuration information of the second wavelength to the target VOA configuration information using a preset model, and adjusting the spectral shape of the second wavelength that has been distorted to the spectral shape of the initial wavelength, the technical problem of spectral shape distortion, reduced optical signal-to-noise ratio, and increased bit error rate of the optical channel after multiple amplifications of the wavelength is solved.

[0031] In one possible implementation, the aforementioned wavelength channel shaping method can be applied to the wavelength channel shaping system 100. The following, in conjunction with... Figure 1 This application provides a detailed description of a wavelength channel shaping system 100 according to embodiments. For example... Figure 1 As shown, Figure 1 A wavelength channel shaping system 100 is provided for embodiments of this disclosure. The system includes: source node A, source node B, source node C, source node D, WSS device 101a, wavelength channel shaping device 102, wavelength channel 103, and WSS device 101b.

[0032] Among them, source nodes A, B, C, and D are all used to transmit light waves; WSS device 101a is used to acquire the initial wavelength channel spectrum of the light waves transmitted by the source nodes; wavelength channel 103 is used to transmit light waves; WSS device 101b is used to acquire the wavelength channel spectrum of the first wavelength after amplification during transmission; and wavelength channel shaping device 102 is used to acquire... Figure 2 The spectrum of the first wavelength of the wavelength channel shown, and as follows Figure 3 The spectrum of the second wavelength is shown; the first spectral density information of the first wavelength is determined based on the spectrum of the first wavelength, and the second spectral density information of the second wavelength is determined based on the spectrum of the second wavelength; the target adjustable optical attenuator (VOA) configuration information is generated based on the first and second spectral density information; the target VOA configuration information is used to adjust the spectrum of the second wavelength to the spectrum of the first wavelength; the VOA configuration of the second wavelength is adjusted to the target VOA configuration in the target VOA configuration information based on a preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes the VOA configuration information.

[0033] In one possible implementation, the hardware structure of the wavelength channel shaping device 102 in the wavelength channel shaping system 100 includes: Figure 4 The components included in the wavelength channel shaping device 400 shown below are described in detail below. Figure 4 The hardware structure of the wavelength channel shaping device 102 is described using the wavelength channel shaping device 400 shown as an example. Figure 4 As shown, the wavelength channel shaping device 400 includes at least one processor 401, a communication line 402, and at least one communication interface 404, and may also include a memory 403. The processor 401, memory 403, and communication interface 404 are connected via the communication line 402.

[0034] The processor 401 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present disclosure, such as one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs).

[0035] Communication line 402 may include a path for transmitting information between the aforementioned components.

[0036] Communication interface 404 is used to communicate with other devices or communication networks. It can use any transceiver-like device, such as Ethernet, radio access network (RAN), wireless local area network (WLAN), etc.

[0037] The memory 403 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of including or storing desired program code having the form of instructions or data structures and accessible by a computer, but not limited thereto.

[0038] In one possible design, the memory 403 can exist independently of the processor 401, meaning the memory 403 can be an external memory of the processor 401. In this case, the memory 403 can be connected to the processor 401 via a communication line 402 to store execution instructions or application code, and its execution is controlled by the processor 401 to implement the wavelength channel shaping method provided in the following embodiments of this disclosure. In another possible design, the memory 403 can also be integrated with the processor 401, meaning the memory 403 can be an internal memory of the processor 401. For example, the memory 403 can be a cache, used to temporarily store some data and instruction information.

[0039] As one possible implementation, processor 401 may include one or more CPUs, for example Figure 4 CPU0 and CPU1 in the example. Alternatively, the wavelength channel shaping device 400 may include multiple processors, such as... Figure 4 The processors 401 and 407 are included. Alternatively, the wavelength channel shaping device 400 may also include an output device 405 and an input device 406.

[0040] The wavelength channel shaping method provided in the embodiments of this disclosure will be described in detail below.

[0041] like Figure 5 As shown, Figure 5 The wavelength channel shaping method provided in this disclosure can be applied to, for example... Figure 4 The wavelength channel shaping device shown includes the following steps S501-S504, which will be described in detail below.

[0042] S501, The wavelength channel shaping device acquires the spectral pattern of the first wavelength and the spectral pattern of the second wavelength of the wavelength channel.

[0043] The first wavelength is the initial wavelength emitted by the source node; the second wavelength is the wavelength amplified during the transmission process.

[0044] In one possible implementation, the wavelength channel shaping device sends an instruction message to the WSS device, instructing the WSS device to acquire the spectral pattern of the first wavelength and the spectral pattern of the second wavelength, and send them to the wavelength channel shaping device.

[0045] S502, the wavelength channel shaping device determines the first spectral density information of the first wavelength based on the spectral shape of the first wavelength, and determines the second spectral density information of the second wavelength based on the spectral shape of the second wavelength.

[0046] In one possible implementation, the spectral density information is the curvature of the spectral curve in the spectral diagram. The wavelength channel shaping device determines the curvature of the spectral curve for the first wavelength based on the spectral diagram of the first wavelength, and determines the curvature of the spectral curve for the second wavelength based on the spectral diagram of the second wavelength.

[0047] S503, the wavelength channel shaping device generates target adjustable optical attenuator (VOA) configuration information based on the first spectral density information and the second spectral density information.

[0048] The target VOA configuration information is used to adjust the spectral shape of the second wavelength to that of the first wavelength.

[0049] In one possible implementation, the wavelength channel shaping device generates a signal based on the first spectral density information and the second spectral density information, such as... Figure 6 The diagram shown is a wavelength channel VOA configuration diagram, which is used to characterize the VOA values ​​of multiple sub-channels.

[0050] S504, The wavelength channel shaping device adjusts the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information based on the preset model.

[0051] The preset model is used to adjust the attribute information of the wavelength channel, which includes VOA configuration information.

[0052] In one possible implementation, the preset model is a wavelength channel attribute information model, and the attribute information in the wavelength channel attribute information model is shown in Table 1 below; where the attribute name is the corresponding attribute to be added, the data type Integer represents an integer, Decimal64 represents a decimal, constraint [1] indicates that the current attribute has one and only one value, and RW indicates that the attribute value can be read and modified.

[0053] Table 1 Attribute Information

[0054] The technical solution provided by the above embodiments can bring at least the following beneficial effects: The wavelength channel shaping device first obtains the spectral shape diagram of the first wavelength and the spectral shape diagram of the second wavelength of the wavelength channel; the first wavelength is the initial wavelength emitted by the source node; the second wavelength is the wavelength amplified by the first wavelength during transmission; the first spectral density information of the first wavelength is determined based on the spectral shape diagram of the first wavelength, and the second spectral density information of the second wavelength is determined based on the spectral shape diagram of the second wavelength; the target adjustable optical attenuator (VOA) configuration information is generated based on the first spectral density information and the second spectral density information; the target VOA configuration information is used to adjust the spectral shape of the second wavelength to the spectral shape of the first wavelength; that is, the target VOA configuration information for adjusting the spectral shape of the second wavelength to the spectral shape of the first wavelength is determined; the VOA configuration of the second wavelength is adjusted to the target VOA configuration in the target VOA configuration information based on the preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes the VOA configuration information. By adjusting the VOA configuration information of the second wavelength to the target VOA configuration information through a preset model, and adjusting the spectral shape of the second wavelength that has been distorted to the spectral shape of the initial wavelength, the technical problem that the spectral shape may be distorted after the wavelength has been amplified multiple times, resulting in a decrease in the optical signal-to-noise ratio of the optical channel and an increase in the bit error rate is solved.

[0055] In one possible implementation, combining Figure 5 ,like Figure 7 As shown, after the wavelength channel shaping device adjusts the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information based on the preset model in S504, it is also necessary to verify whether the wavelength spectrum after the second wavelength VOA configuration information is adjusted to the target VOA configuration in the target VOA configuration information meets the optical wave transmission requirements. This process can be implemented through the following S701-S702, which will be explained in detail below.

[0056] S701, Wavelength channel shaping device acquires the spectral pattern of the third wavelength.

[0057] Among them, the third wavelength is the VOA configuration information of the second wavelength that is adjusted to the wavelength after the target VOA configuration in the target VOA configuration information.

[0058] In one possible implementation, after adjusting the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information, the wavelength channel shaping device instructs the SWW device to acquire the spectral pattern of the third wavelength.

[0059] S702, the wavelength channel shaping device determines the spectral pattern of the third wavelength as the target wavelength spectral pattern based on the similarity between the spectral pattern of the first wavelength and the spectral pattern of the third wavelength.

[0060] In one possible implementation, the wavelength channel shaping device analyzes the spectral patterns of the first wavelength and the third wavelength, and determines the spectral pattern of the third wavelength as the target wavelength based on the similarity between the spectral patterns of the first wavelength and the third wavelength.

[0061] The technical solution provided by the above embodiments can bring at least the following beneficial effects: After the wavelength channel shaping device adjusts the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information based on the preset model, it verifies whether the wavelength spectrum after the VOA configuration information of the second wavelength is adjusted to the target VOA configuration in the target VOA configuration information meets the optical wave transmission requirements based on the similarity between the spectrum of the third wavelength and the first wavelength.

[0062] In one possible implementation, combining Figure 7 ,like Figure 8 As shown, the process by which the wavelength channel shaping device determines the spectral pattern of the third wavelength as the target wavelength spectral pattern based on the similarity between the spectral pattern of the first wavelength and the spectral pattern of the third wavelength can be specifically implemented through the following S801-S802, which will be explained in detail below.

[0063] S801, the wavelength channel shaping device determines the spectral density information of the third wavelength based on the spectral shape of the third wavelength.

[0064] In one possible implementation, the spectral density information of the third wavelength is the curvature of the spectral curve in the spectral diagram of the third wavelength, and the wavelength channel shaping device determines the curvature of the spectral curve of the third wavelength based on the spectral diagram of the third wavelength.

[0065] S802. When the similarity between the spectral density information of the third wavelength and the spectral density information of the first wavelength is greater than the second preset threshold, the wavelength channel shaping device determines the spectral shape of the third wavelength as the target wavelength spectral shape.

[0066] For example, when the curvature of the spectral curve of the third wavelength is more than 90% similar to the curvature of the spectral curve of the first wavelength, the wavelength channel shaping device determines the spectral curve of the third wavelength as the target wavelength spectral curve.

[0067] The technical solution provided by the above embodiments can bring at least the following beneficial effects: the wavelength channel shaping device determines the spectral density information of the third wavelength based on the spectral shape of the third wavelength, and determines the spectral shape of the third wavelength as the target wavelength spectral shape when the similarity between the spectral density information of the third wavelength and the spectral density information of the first wavelength is greater than a second preset threshold.

[0068] In one possible implementation, combining Figure 8 ,like Figure 9 As shown, the process by which the wavelength channel shaping device adjusts the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information based on the preset model can be specifically implemented through the following S901-S902, which will be explained in detail below.

[0069] S901, the wavelength channel shaping device determines the target VOA value corresponding to each sub-wavelength of the second wavelength based on the first spectral density information and the second spectral density information.

[0070] In one possible implementation, the target VOA configuration information includes multiple target VOA values, and the second wavelength includes multiple sub-wavelengths, each sub-wavelength corresponding to a target VOA value.

[0071] In one possible implementation, the structure of the WSS channel and the wavelength channel is as follows: Figure 10 As shown; the WSS channel includes multiple wavelength channels, each wavelength channel includes multiple slots, and each slot includes a VOA value.

[0072] S902, the wavelength channel shaping device adjusts the VOA value of each sub-wavelength of the second wavelength to the target VOA value corresponding to each sub-wavelength by using a preset model.

[0073] In one possible implementation, the preset model is a wavelength channel attribute information model.

[0074] For example, the tree structure of the wavelength channel attribute information model is as follows: +--rw sub-slots +--rw sub-slot [slot-index] / / |+--rw slot-index |+--rw lower-frequency-slot |+--rw upper-frequency-slot |+--rw slot-profile The technical solution provided by the above embodiments can bring at least the following beneficial effects: the wavelength channel shaping device determines the target VOA value corresponding to each sub-wavelength of the second wavelength based on the first spectral density information and the second spectral density information, and adjusts the VOA value of each sub-wavelength of the second wavelength to the target VOA value corresponding to each sub-wavelength through a preset model, thereby completing the spectral shape correction of the second wavelength, improving the optical signal-to-noise ratio of the optical channel, and reducing the bit error rate.

[0075] In one possible implementation, the wavelength channel's attribute information also includes: the wavelength channel's index value, the wavelength channel's lower frequency limit, and the wavelength channel's upper frequency limit; such as... Figure 11 As shown, the wavelength channel shaping device also needs to unify the wavelength channel interface. This process can be implemented through the following S1101, which will be described in detail below.

[0076] S1101, the wavelength channel shaping device adjusts the index value of the wavelength channel to the target index value, the lower limit of the wavelength channel frequency to the target lower limit, and the upper limit of the wavelength channel frequency to the target lower limit based on a preset model.

[0077] In one possible implementation, the target index value, the target frequency lower limit, and the target frequency upper limit are used for the interface of a unified wavelength channel.

[0078] The technical solution provided by the above embodiments can bring at least the following beneficial effects: the wavelength channel shaping device adjusts the index value, lower frequency limit, and upper frequency limit of the wavelength channel through a preset model, thereby unifying the interface of the wavelength channel.

[0079] In one possible implementation, the wavelength channel shaping process is as follows: Figure 12 As shown, the process specifically includes the following steps 1-4, which will be explained in detail below.

[0080] Step 1: Obtain the spectrum of the first wavelength and the spectrum of the second wavelength in the wavelength channel.

[0081] Step 2: Generate VOA configuration parameters based on the spectrum of the first wavelength and the spectrum of the second wavelength in the wavelength channel.

[0082] Step 3: Shape the image using a preset model and obtain the spectral pattern of the third wavelength after shaping.

[0083] Step 4: Determine whether the spectrum of the third wavelength meets the expectation. If it does, complete this shaping process. If not, adjust the VOA configuration parameters and repeat steps 3-4 until the spectrum of the third wavelength meets the expectation.

[0084] As can be seen, the above mainly describes the technical solutions provided by the embodiments of this disclosure from a methodological perspective. To achieve the above functions, it includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the modules and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0085] This disclosure embodiment can divide the wavelength channel shaping device into functional modules according to the above method example. For example, each function can be divided into its own functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this disclosure embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0086] One possible implementation is, such as Figure 13 , Figure 13 This is a schematic diagram of the structure of a wavelength channel shaping device 1300 provided in this disclosure.

[0087] A wavelength channel shaping device 1300 includes: a communication unit 1301 and a processing unit 1302; the communication unit 1301 is used to acquire the spectral shape of a first wavelength and a spectral shape of a second wavelength of the wavelength channel; the first wavelength is the initial wavelength emitted by the source node; the second wavelength is the wavelength amplified during transmission of the first wavelength; the processing unit 1302 is used to determine the first spectral density information of the first wavelength based on the spectral shape of the first wavelength, and to determine the second spectral density information of the second wavelength based on the spectral shape of the second wavelength; the processing unit 1302 is used to generate target adjustable optical attenuator (VOA) configuration information based on the first and second spectral density information; the target VOA configuration information is used to adjust the spectral shape of the second wavelength to the spectral shape of the first wavelength; the communication unit 1301 is used to adjust the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information based on a preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes VOA configuration information.

[0088] In one possible implementation, the processing unit 1302 is further configured to: instruct the communication unit 1301 to acquire the spectral pattern of the third wavelength; adjust the VOA configuration information of the second wavelength to the wavelength after the target VOA configuration in the target VOA configuration information; determine the spectral pattern of the third wavelength as the target wavelength spectral pattern based on the similarity between the spectral pattern of the first wavelength and the spectral pattern of the third wavelength; the target wavelength spectral pattern is the spectral pattern of the wavelength with an optical signal-to-noise ratio greater than a first preset threshold.

[0089] In one possible implementation, the processing unit 1302 is specifically used to: determine the spectral density information of the third wavelength based on the spectral shape of the third wavelength; and determine the spectral shape of the third wavelength as the target wavelength spectral shape when the similarity between the spectral density information of the third wavelength and the spectral density information of the first wavelength is greater than a second preset threshold.

[0090] In one possible implementation, the target VOA configuration information includes multiple target VOA values; the second wavelength includes multiple sub-wavelengths, each sub-wavelength corresponding to a target VOA value; the processing unit 1302 is specifically used to: determine the target VOA value corresponding to each sub-wavelength of the second wavelength based on the first spectral density information and the second spectral density information; and adjust the VOA value of each sub-wavelength of the second wavelength to the target VOA value corresponding to each sub-wavelength through a preset model.

[0091] In one possible implementation, the attribute information of the wavelength channel also includes: the index value of the wavelength channel, the lower frequency limit of the wavelength channel, and the upper frequency limit of the wavelength channel. The processing unit is also used to: adjust the index value of the wavelength channel to the target index value, adjust the lower frequency limit of the wavelength channel to the target lower frequency limit, and adjust the upper frequency limit of the wavelength channel to the target lower frequency limit based on a preset model; the target index value, the target lower frequency limit, and the target upper frequency limit are used to unify the interface of the wavelength channel.

[0092] This disclosure also provides a wavelength channel shaping apparatus, which includes a processor and a memory; wherein the memory is used to store computer execution instructions, and when the wavelength channel shaping apparatus is running, the processor executes the computer execution instructions stored in the memory to cause the wavelength channel shaping apparatus to perform the wavelength channel shaping method described in this disclosure.

[0093] Embodiments of this disclosure provide a computer program product containing instructions that, when executed on a computer, cause the computer to perform the wavelength channel shaping method described in the above method embodiments.

[0094] Embodiments of this disclosure provide a chip including a processor and a communication interface, the communication interface and the processor being coupled together, the processor being used to run computer programs or instructions to implement the wavelength channel shaping method as described in the above method embodiments.

[0095] The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), registers, hard disks, optical fibers, compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing, or any other form of computer-readable storage medium in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may reside in an application-specific integrated circuit (ASIC). In this embodiment of the disclosure, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0096] Since the apparatus, devices, computer-readable storage media, and computer program products in the embodiments of this disclosure can be applied to the above methods, the technical effects they can achieve can also be referred to the above method embodiments. The embodiments of this disclosure will not be repeated here.

[0097] The above descriptions are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A wavelength channel shaping method, characterized in that, include: Obtain the spectral pattern of the first wavelength and the spectral pattern of the second wavelength in the wavelength channel; The first wavelength is the initial wavelength emitted by the source node; The second wavelength is the wavelength of the first wavelength amplified during transmission; The first spectral density information of the first wavelength is determined based on the spectral shape of the first wavelength, and the second spectral density information of the second wavelength is determined based on the spectral shape of the second wavelength; Target VOA configuration information is generated based on the first spectral density information and the second spectral density information; The target VOA configuration information is used to adjust the spectral shape of the second wavelength to that of the first wavelength; The VOA configuration of the second wavelength is adjusted to the target VOA configuration in the target VOA configuration information based on a preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes the VOA configuration information; Obtain the spectral pattern of the third wavelength; The third wavelength is the VOA configuration information of the second wavelength that is adjusted to the wavelength after the target VOA configuration in the target VOA configuration information; Based on the similarity between the spectral pattern of the first wavelength and the spectral pattern of the third wavelength, the spectral pattern of the third wavelength is determined to be the target wavelength spectral pattern; the target wavelength spectral pattern is the spectral pattern of a wavelength with an optical signal-to-noise ratio greater than a first preset threshold.

2. The method according to claim 1, characterized in that, The step of determining the spectral pattern of the third wavelength as the target wavelength spectral pattern based on the similarity between the spectral pattern of the first wavelength and the spectral pattern of the third wavelength includes: The spectral density information of the third wavelength is determined based on the spectral shape of the third wavelength; If the similarity between the spectral density information of the third wavelength and the spectral density information of the first wavelength is greater than a second preset threshold, the spectral shape of the third wavelength is determined to be the target wavelength spectral shape.

3. The method according to claim 2, characterized in that, The target VOA configuration information includes multiple target VOA values; the second wavelength includes multiple sub-wavelengths, each sub-wavelength corresponding to a target VOA value. The step of adjusting the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information based on the preset model includes: Based on the first spectral density information and the second spectral density information, determine the target VOA value corresponding to each sub-wavelength of the second wavelength; The VOA value of each sub-wavelength of the second wavelength is adjusted to the target VOA value corresponding to each sub-wavelength using the preset model.

4. The method according to any one of claims 1-3, characterized in that, The attribute information of the wavelength channel also includes: the index value of the wavelength channel, the lower frequency limit of the wavelength channel, and the upper frequency limit of the wavelength channel; the method also includes: Based on the preset model, the index value of the wavelength channel is adjusted to the target index value, the lower frequency limit of the wavelength channel is adjusted to the target lower frequency limit, and the upper frequency limit of the wavelength channel is adjusted to the target lower frequency limit; the target index value, the target lower frequency limit, and the target upper frequency limit are used to unify the interface of the wavelength channel.

5. A wavelength channel shaping device, characterized in that, include: Communication unit and processing unit; The communication unit is used to acquire the spectral pattern of the first wavelength and the spectral pattern of the second wavelength of the wavelength channel; The first wavelength is the initial wavelength emitted by the source node; the second wavelength is the wavelength amplified during the transmission process. The processing unit is configured to determine first spectral density information of the first wavelength based on the spectral pattern of the first wavelength, and to determine second spectral density information of the second wavelength based on the spectral pattern of the second wavelength. The processing unit is used to generate target VOA configuration information based on the first spectral density information and the second spectral density information; The target VOA configuration information is used to adjust the spectral shape of the second wavelength to that of the first wavelength; The communication unit is used to adjust the VOA configuration of the second wavelength to the target VOA configuration in the target VOA configuration information based on a preset model; the preset model is used to adjust the attribute information of the wavelength channel; the attribute information of the wavelength channel includes the VOA configuration information; The processing unit is also used for: The communication unit is instructed to acquire the spectral pattern of the third wavelength; the third wavelength is the VOA configuration information of the second wavelength adjusted to the wavelength after the target VOA configuration in the target VOA configuration information; Based on the similarity between the spectral pattern of the first wavelength and the spectral pattern of the third wavelength, the spectral pattern of the third wavelength is determined to be the target wavelength spectral pattern; the target wavelength spectral pattern is the spectral pattern of a wavelength with an optical signal-to-noise ratio greater than a first preset threshold.

6. The apparatus according to claim 5, characterized in that, The processing unit is specifically used for: The spectral density information of the third wavelength is determined based on the spectral shape of the third wavelength; If the similarity between the spectral density information of the third wavelength and the spectral density information of the first wavelength is greater than a second preset threshold, the spectral shape of the third wavelength is determined to be the target wavelength spectral shape.

7. A wavelength channel shaping device, characterized in that, include: A processor and a memory; wherein the memory is used to store computer execution instructions, and when the wavelength channel shaping device is running, the processor executes the computer execution instructions stored in the memory to cause the wavelength channel shaping device to perform the wavelength channel shaping method according to any one of claims 1-4.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores instructions that, when executed by a wavelength channel shaping processor, cause the wavelength channel shaping apparatus to perform the wavelength channel shaping method according to any one of claims 1-4.

Images