Optical network wavelength division device configuration method and device, electronic device and storage medium

Abstract

This application provides a method, apparatus, electronic device, and storage medium for configuring wavelength division multiplexing (WDM) equipment in an optical network. The method is applied to an optical network system, which includes electrical layer devices and optical layer devices. The method includes: adjusting the optical module laser on the electrical layer device so that the output optical power of the Optical Module Alternator (OBA) at the starting node does not exceed a preset power threshold; controlling the input and output optical power of the OBAs in intermediate nodes to not exceed preset power thresholds; adjusting the pre-VOA of the Optical Module Alternator (OPA) in the intermediate nodes so that the cross-segment loss is not lower than a preset cross-segment loss threshold, and the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold; controlling the output optical signal-to-noise ratio (SNR) of the OPAs in the intermediate nodes to not be lower than a preset SNR threshold; and configuring downscan based on the terminal node. The technical solution of this application can realize wavelength division multiplexing in optical networks, meeting the service scheduling requirements of high-bandwidth, point-to-point data center interconnection.

Description

Technical Field

[0001] This application belongs to the field of network technology and security technology, and specifically relates to a method, apparatus, electronic device and storage medium for configuring an optical network wavelength division multiplexing (WDM) device. Background Technology

[0002] High-bandwidth, point-to-point data center interconnection service scheduling scenarios rely on optical network wavelength division multiplexing (WDM) equipment. As the amount of transmitted data increases, the scale of optical network WDM equipment is also getting larger and larger, and the number of network components is also increasing.

[0003] In traditional optical network wavelength division multiplexing (WDM) systems, optical network equipment mostly relies on a single equipment manufacturer. When there are too many devices, it is impossible to network with equipment from other manufacturers, which is not conducive to the open decoupling of equipment. When it is necessary to network optical network equipment from multiple manufacturers, since traditional optical network WDM systems are configured separately by each equipment manufacturer, when there are too many WDM devices in the optical network, each equipment manufacturer needs to operate its own network management system to configure each board step by step. Moreover, the network management systems of each optical network equipment company are not the same. As a result, the debugging and configuration of existing network equipment requires the manpower of each optical network equipment company. The manual activation time is long and there is no unified management, which makes the configuration of optical network WDM equipment difficult. Summary of the Invention

[0004] To address the aforementioned technical problems, embodiments of this application provide a method and apparatus for configuring an optical network wavelength division multiplexing (WDM) device, an electronic device, and a computer-readable storage medium.

[0005] According to one aspect of the embodiments of this application, a method for configuring a wavelength division multiplexing (WDM) device in an optical network is provided, applied to an optical network system. The optical network system includes an electrical layer device for emitting service light and an optical layer device for transmitting service light. The optical layer device includes multiple nodes, which sequentially include a starting node, at least one intermediate node, and a terminal node. The starting node includes an OMU and an OBA, and the intermediate node includes an OPA, at least one WSS, and an OBA. The method includes: adjusting an optical module laser on the electrical layer device such that the output optical power of the OBA at the starting node receiving the service light emitted by the optical module laser does not exceed a preset power threshold; controlling the input optical power and output optical power of the OBA in the intermediate node to not exceed a preset power threshold; adjusting the pre-VOA of the OPA in the intermediate node such that the cross-segment loss is not lower than a preset cross-segment loss threshold, and the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold; controlling the output optical signal-to-noise ratio of the OPA in the intermediate node to not lower than a preset signal-to-noise ratio threshold; and configuring downwave based on the terminal node.

[0006] In one embodiment, controlling the input optical power and output optical power of the OBA within the intermediate node to not exceed a preset power threshold includes:

[0007] The input optical power of the intermediate span is adjusted so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold; wherein, the intermediate span includes the other spans in the optical layer device except for the first span and the last span, and the first node is the preceding node of the two nodes forming the intermediate span;

[0008] Adjust the pre-VOA of the OBA within the intermediate node or adjust the WSS located before the OBA within the intermediate node so that the input optical power of the OBA within the intermediate node does not exceed the power threshold.

[0009] In one embodiment, adjusting the input optical power of the intermediate span so that the OBA output optical power in the preceding node of the intermediate span does not exceed the power threshold includes:

[0010] The built-in VOA of the WSS in the second node of the intermediate span is adjusted so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold; wherein, the second node is the latter of the two nodes forming the intermediate span.

[0011] In one embodiment, adjusting the preceding VOA of the OPA within the intermediate node to ensure that the cross-segment loss is not lower than a preset cross-segment loss threshold and that the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold includes:

[0012] Detecting the span loss between intermediate spans; wherein, the intermediate spans include the other spans among the multiple nodes of the optical layer device, excluding the first span and the last span;

[0013] If there is a target segment with a cross-loss lower than the cross-loss threshold, then adjust the preceding VOA of the OPA within the node corresponding to the target segment.

[0014] In one embodiment, adjusting the preceding VOA of the OPA within the intermediate node to ensure that the cross-segment loss is not lower than a preset cross-segment loss threshold and that the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold includes:

[0015] The power difference between the OPA output optical power and the OBA input optical power within the intermediate node is taken as the internal attenuation of the intermediate node;

[0016] Adjust the preceding VOA of the OPA within the intermediate node so that the internal decay of the intermediate node is not lower than the preset internal decay threshold.

[0017] In one embodiment, controlling the output optical signal-to-noise ratio of the OPA within the intermediate node to be not lower than a preset signal-to-noise ratio threshold includes:

[0018] Detect the output optical signal-to-noise ratio of the OPA within the intermediate node;

[0019] If the output optical signal-to-noise ratio of the OPA in the intermediate node is lower than the signal-to-noise ratio threshold, then the WSS in the previous node of the intermediate node is used for local demodulation.

[0020] If the output optical signal-to-noise ratio of the OPA within the intermediate node is not lower than the signal-to-noise ratio threshold, then the service optical is transmitted based on the intermediate node.

[0021] In one embodiment, the terminal node includes an ODU, and configuring the next wave based on the terminal node includes:

[0022] Based on the ODU of the terminal node, wavelength division is performed to obtain service light of different wavelengths;

[0023] Verify the bit error rate before correction for the service light of different wavelengths;

[0024] If the bit error rate before correction of the service light of different wavelengths meets the transmission conditions, then the service light of different wavelengths is configured to be down-waved via ODU.

[0025] According to one aspect of the embodiments of this application, an optical network wavelength division multiplexing (WDM) device configuration apparatus is provided, configured in an optical network system. The optical network system includes an electrical layer device that emits service light and an optical layer device that transmits service light. The optical layer device includes multiple nodes, which sequentially include a start node, at least one intermediate node, and a finish node. The start node includes an OMU and an OBA, and the intermediate node includes an OPA, at least one WSS, and an OBA. The apparatus includes an electrical layer device configuration module configured to adjust the optical module laser on the electrical layer device, such that the start node receiving the service light emitted by the optical module laser... The output optical power of the OBA at the point does not exceed a preset power threshold; the intermediate node configuration module is configured to control the input and output optical power of the OBA within the intermediate node to not exceed the preset power threshold; the pre-VOA configuration module is configured to adjust the pre-VOA of the OPA within the intermediate node so that the cross-segment loss is not lower than a preset cross-segment loss threshold, and the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold; the output optical signal-to-noise ratio configuration module is configured to control the output optical signal-to-noise ratio of the OPA within the intermediate node to not lower than a preset signal-to-noise ratio threshold; and the terminal node configuration module is configured to configure the next wave based on the terminal node.

[0026] According to one aspect of the embodiments of this application, an electronic device is provided, including one or more processors; and a storage device for storing one or more computer programs, which, when executed by the one or more processors, cause the electronic device to implement the optical network wavelength division multiplexing (WDM) device configuration method as described above.

[0027] According to one aspect of the embodiments of this application, a computer-readable storage medium is provided, on which computer-readable instructions are stored, which, when executed by a computer's processor, cause the computer to perform the optical network wavelength division multiplexing device configuration method as described above.

[0028] According to one aspect of the embodiments of this application, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the optical network wavelength division multiplexing (WDM) device configuration method provided in the various alternative embodiments described above.

[0029] In the technical solutions provided in the embodiments of this application, the proposed optical network wavelength division multiplexing (WDM) equipment configuration method enables the optical layer equipment to meet the service scheduling requirements of high bandwidth and point-to-point data center interconnection by configuring the boards of each node in the optical layer equipment, thereby realizing wavelength division multiplexing in the optical network.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0032] Figure 1 This is a schematic diagram of one implementation environment involved in this application;

[0033] Figure 2 This is a flowchart illustrating an exemplary embodiment of the optical network wavelength division multiplexing (WDM) device configuration method.

[0034] Figure 3 yes Figure 2 A flowchart of step S230 in an exemplary embodiment shown in the illustrated example;

[0035] Figure 4 yes Figure 3 A flowchart of step S310 in an exemplary embodiment shown in the illustrated example;

[0036] Figure 5 yes Figure 2 A flowchart of step S250 in an exemplary embodiment shown in the illustrated example;

[0037] Figure 6 yes Figure 2 A flowchart of step S250 in another exemplary embodiment of the illustrated embodiment;

[0038] Figure 7 yes Figure 2 A flowchart of step S270 in an exemplary embodiment shown in the illustrated example;

[0039] Figure 8 yes Figure 2 A flowchart of step S290 in an exemplary embodiment shown in the illustrated example;

[0040] Figure 9 This is a schematic diagram of the structure of an optical network wavelength division multiplexing (WDM) device configuration apparatus, as illustrated in an exemplary embodiment of this application.

[0041] Figure 10 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown. Detailed Implementation

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0044] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0045] It should also be noted that "multiple" as mentioned in this application refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0046] The following will provide a detailed description of the optical network wavelength division multiplexing (WDM) equipment configuration method and apparatus, electronic devices, and storage media proposed in the embodiments of this application.

[0047] Please refer to the following first. Figure 1 , Figure 1 This is a schematic diagram of an implementation environment involved in this application. The implementation environment is an optical network system, which includes a first electrical layer device 100 for emitting service light, an optical layer device 200 for transmitting service light, and a second electrical layer device 300. The first electrical layer device 100 can further perform electro-optical conversion, emitting service light through an optical module laser and sending the service light to the optical layer device 200. The optical layer device 200 transmits the service light, and then the service light is down-waved. Service light of different wavelengths reaches the second electrical layer device 300, undergoes photoelectric conversion, and is finally output to the interface of the corresponding service to complete service scheduling.

[0048] Among them, the first electrical layer device 100 and the second electrical layer device 300 are customer-side devices, supporting electrical layer boards of models such as 400G TMUX, 200G TMUX-1, and 200G TMUX-2. Different types of electrical layer boards support access with different interface models. For example, 400G TMUX supports 4x100GE, 100GE FlexE, OTU4, etc., and its line-side transmission capacity (i.e., the optical module service type of the first electrical layer device) is 4x22dB (4 is the span in the optical layer device, and 22dB is the maximum allowable attenuation value between spans); 200G TMUX-1 supports 2x100GE, 100GE FlexE, OTU4, or 100G+10*10G (STM64, 10GE, OTU2, 10GE-WAN) access, and its line-side transmission capacity is 8x22dB (200G 16QAM) and 18x22dB (200G 16QAM). QPSK); 200GTMUX-2 supports 2x100GE, 100GE FlexE, OTU4 and other access, and the line-side transmission capacity is 8x22dB (200G 16QAM) and 18x22dB (200G QPSK).

[0049] The optical layer equipment 200 is a line-side device responsible for amplification, multiplexing, and demultiplexing. It comprises multiple nodes, which transmit service optical data between themselves and perform uplink / downlink operations within each node. Each node is equipped with relevant devices such as OPA (Optical Preamplifier Amplifier), OBA (Optical Booster Amplifier), WSS (Wavelength Selective Switch), VOA (Variable Optical Attenuator), OMU (Optical Multiplex Unit), and ODU (Optix Division Unit). The OBA board has a gain range of 8–18 dB, and the OPA board has a gain range of 15–25 dB. The WSS board supports 5-dimensional and 9-dimensional WSS with a channel bandwidth of 100 GHz. The OMU / ODU boards support uplink / downlink for 48 wavelengths with a channel bandwidth of 100 GHz.

[0050] Understandable, Figure 1 Only one first electrical layer device 100, one optical layer device 200, and one second electrical layer device 300 are shown in this embodiment. In other embodiments, the number of first electrical layer devices 100, optical layer devices 200, and second electrical layer devices 300 may be multiple, and there is no limitation here.

[0051] Specifically, the optical layer device 200 can be a single-segment scenario (two nodes) or a short-distance multi-segment scenario (multiple nodes, N nodes can have N segments, the number of segments can be determined by the board model of the first electrical layer device 100 that emits service light; for example, when there are 9 nodes, the first node is segment 1, the second to third nodes are segment 2, and so on, the 8th to 9th nodes are segment 9). The first node in the optical layer device 200, that is, the node that receives the service light sent by the first electrical layer device 100, is called the starting node. The starting node contains an OMU and an OBA. The OMU is used to combine multiple service lights of different wavelengths emitted by the first electrical layer device 100. The combined light is then amplified by the OBA and sent to the next node. Of course, the starting node may add or remove service lights, such as when other service lights enter the starting node or when a second electrical layer device 300 needs service lights from the starting node. Therefore, the starting node also has a preset WSS (Wireless Spectrum Controller) for combining or demultiplexing when the starting node adds or removes service lights. Figure 1 The image only shows one WSS, but it should be understood that there could be other numbers.

[0052] The last node in the optical layer device 200 is designated as the terminal node. This terminal node is used to demultiplex the service light and transmit it to multiple second electrical layer devices 300. The terminal node contains an OPA and an ODU. The OPA amplifies the optical power of the service light transmitted by the previous node, and the ODU demultiplexes the service light received into different wavelengths. Each service light can then reach different second electrical layer devices 300. Of course, the terminal node may also add or remove wavelengths; therefore, a WSS (Wavelength Selector Switch) is preset in the terminal node to perform multiplexing or demultiplexing when adding or removing wavelengths. Figure 1 Only one WSS is shown in the figure. It should be understood that there can be other numbers. Each WSS can have a built-in VOA to adjust the input optical power across the fiber.

[0053] When multiple segments exist in the optical layer device 200, there are also multiple intermediate nodes between the starting node and the ending node. These intermediate nodes contain OPA, OBA, and WSS. For these intermediate nodes, during the transmission of service light, there will inevitably be uplink and downlink waves; therefore, WSS needs to be configured within the intermediate nodes. Figure 1 The example shown depicts two WSSs in an intermediate node. It should be understood that other embodiments may use other numbers of WSSs, which are not limited here. Similarly, the OPA in the intermediate node amplifies the power of the service light transmitted from the previous node (i.e., pre-amplifies), and the OBA amplifies the service light before transmitting it to the next node. For the OPA and OBA boards in the optical layer device 200, both the OPA and OBA boards at each node can pre-amplify the VOA. Figure 1 The OPA board's front VOA is used to adjust the cross-segment loss of the node, so that the cross-segment loss is within a certain range. The OBA board's front VOA is used to adjust the optical power of the service light input to the OBA.

[0054] In one specific embodiment, it is possible to... Figure 1 The optical layer device 200 is configured to enable opto-decoupling between the first electrical layer device 100, the optical layer device 200, and the second electrical layer device 300, thereby supporting cross-vendor networking of the optical layer device and the electrical layer device.

[0055] Specifically, the optical layer device 200 receives service light at the starting node and confirms that the optical power of the OMU board output port is correct. The OMU output port optical power is transmitted through the preset WSS board in the starting node. Of course, if there is no starting node and no preset WSS board, it is directly transmitted to the OBA of the starting node. In order to ensure flatness, it is necessary to adjust the output optical power of the laser of the modulation optical module on the first electrical layer device to control the service optical power output by the first electrical layer device to the starting node, so that the average single-wavelength power of the OBA output optical power of the starting node does not exceed the preset power threshold. This power threshold can be determined according to the service type of the optical module of the electrical layer device. For example, when the service type of the optical module of the electrical layer device is 200G 16QAM (16QAM is the modulation method under 200G line), the preset threshold is +1dBm; when the service type is 200G QPSK, the preset threshold is +2.5dBm; when the service type is 400G 16QAM, the preset threshold is +3dBm.

[0056] Subsequently, the service light travels to the next node via the OBA of the starting node. At this point, by controlling the preceding VOA of the next node's OPA, the cross-traffic loss between the starting node and the next node is ensured to be no less than a preset cross-traffic loss threshold. The next node after the starting node can be either the terminal node or an intermediate node. Of course, for all cross-traffic segments between subsequent nodes of the starting node, the preceding VOA of the OPA in the next node of the segment must be controlled to ensure that the cross-traffic loss of that segment is no less than the preset cross-traffic loss threshold.

[0057] If there are intermediate nodes between the starting node and the ending node, the output optical power of the intermediate node's OPA and the input optical power of the OBA are also detected to determine the node's internal attenuation. If the node's internal attenuation is lower than a preset internal attenuation threshold, the pre-VOA of the intermediate node is adjusted to ensure that the node's internal attenuation within the intermediate node is not lower than the preset internal attenuation threshold. Thus, during the transmission of service optical signals, the intermediate node needs to control the pre-VOA of the corresponding intermediate node to ensure that the cross-loss between the intermediate node and the previous node is not lower than a preset cross-loss threshold and that the node's internal attenuation is not lower than a preset internal attenuation threshold.

[0058] When intermediate nodes exist, for a span in the optical layer device 200, the input optical power in the span can be adjusted so that the average single-wavelength power of the OBA output optical power of the preceding node does not exceed a preset threshold. Specifically, for a certain span A, which is the span from the nth node to the (n+1)th node, the built-in VOA of the WSS module located before the OBA in the (n+1)th node can be adjusted so that the average single-wavelength power of the OBA output optical power of the (n-1)th node does not exceed the preset threshold. Adjusting the built-in VOA of the WSS will not affect the node's intra-node attenuation.

[0059] Of course, in this embodiment, the input port of the OBA can also be adjusted. Specifically, the average single-wavelength power of the input optical power of the OBA at a node can be adjusted by adjusting the preceding VOA or the preceding WSS of the OBA in the node so that the average single-wavelength power of the input optical power of the OBA at that node does not exceed a preset threshold. For the optical layer device 200, if there are relatively few waves in the starting node or the first two nodes of the optical layer device, that is, the service optical power reaching the OBA at these nodes meets the input interface requirements of the OBA, then the input port of the OBA at the starting node or the first two nodes does not need to be adjusted. For example, the input port of the OBA at the third node and subsequent nodes can be adjusted starting from the third node.

[0060] Meanwhile, for OPAs within a node, the further back in the optical layer device 200 the node, the greater the service optical power received by the OPA in the later node due to the up-wave and down-wave processes in the preceding nodes, affecting the transmission of service optical in the optical layer device. Based on this, the output optical signal-to-noise ratio (SNR) of the OPA in the node is also detected. When the SNR is lower than a preset SNR threshold, the WSS in the preceding node is controlled to perform down-wave to local demodulation; otherwise, it is cleared at that node. Similarly, if there are fewer up-wave processes in the starting node or the first two nodes of the optical layer device, the output SNR of the OPA in the starting node or the first two nodes may not need to be detected. Instead, the output SNR of the OPA in the node can be detected starting from the third node to determine whether down-wave processing is necessary.

[0061] Through amplification, multiplexing, and demultiplexing at each node in the optical layer equipment, the service light finally reaches the terminal node, i.e., the last node. The transmission capacity of this terminal node reaches its limit. At this point, the bit error rate before correction of all service light that needs to be down-waved after being demultiplexed by the ODU can be verified to verify whether the conditions for normal transmission are met. At this terminal node, down-waved light is configured via the ODU to distribute service light of different wavelengths to different second-layer electrical layer equipment.

[0062] The optical network wavelength division multiplexing (WDM) equipment configuration method proposed in this embodiment supports cross-vendor networking of optical layer and electrical layer equipment, achieving open decoupling of optoelectronic devices. It also enables automated configuration of equipment from multiple companies, facilitating unified network management. Furthermore, this method is applicable to high-bandwidth, point-to-point service scheduling scenarios, exhibiting high adaptability and reliability to data centers.

[0063] Figure 2 This is a flowchart illustrating a method for configuring an optical network wavelength division multiplexing (WDM) device according to an exemplary embodiment. This optical network WDM device configuration method can be applied to... Figure 1 The implementation environment shown is specifically executed by the optical network system in that implementation environment. It should be understood that the method can also be used in other exemplary implementation environments and specifically executed by devices in other implementation environments. This embodiment does not limit the implementation environment to which the method is applicable.

[0064] like Figure 2 As shown, in an exemplary embodiment, the method may include steps S210 to S290, which are described in detail below:

[0065] Step S210: Adjust the optical module laser on the electrical layer device so that the output optical power of the OBA at the starting node receiving the service light emitted by the optical module laser does not exceed a preset power threshold.

[0066] In this embodiment, adjusting the optical module laser on the electrical layer device is an adjustment Figure 1 The optical module laser on the first electrical layer device is the optical module laser on the electrical layer device that adjusts the emission of service light.

[0067] Specifically, the electrical layer device that emits service light outputs the service light through the laser of the optical module. The service light reaches the optical layer device, and the starting node in the optical layer device receives the service light. It confirms the optical power of the OMU single board output port by verifying that it is correct. A WSS can be preset in the starting node. When the service light of other devices is added or de-embedded in the starting node, it can be combined and de-embedded through the WSS. At this time, the optical power of the OMU output port is transmitted through the WSS board.

[0068] In this embodiment, in order to ensure flatness, the OBA of the initial node uses the default gain, and the output service optical power of the laser in the optical module in the electrical layer device is adjusted to control the service optical power from the electrical layer device to the optical layer device, so that the output optical power of the OBA of the initial node does not exceed the preset power threshold.

[0069] The preset power threshold is related to the optical module service type in the electrical layer device. Different optical module service types have different power thresholds. The power threshold can be set based on empirical parameters for different optical module service types. For example, when the optical module service type is 200G 16QAM (16QAM is the modulation method under 200G line), the preset threshold is +1dBm; when the optical module service type is 200G QPSK, the preset threshold is +2.5dBm. Of course, the above is only an example. In other embodiments, the power threshold can be other values.

[0070] Step S230: Control the input optical power and output optical power of the OBA in the intermediate node to not exceed the preset power threshold.

[0071] In this embodiment, when the service light emitted by the OBA of the initial node arrives at the next node, i.e., the intermediate node, if there are multiple intermediate nodes, the service light is transmitted according to the order of the intermediate nodes. Simultaneously, there may be up-wave or down-wave situations at intermediate nodes. The WSS set in the intermediate node can be used for up-wave multiplexing and down-wave demultiplexing. Since up-wave and down-wave are relatively frequent at intermediate nodes, multiple WSSs can be installed in the intermediate nodes, such as... Figure 1 The two shown can be any number of WSSs, and there are no restrictions here.

[0072] For service optical signals arriving at intermediate nodes, similar to those at the initial node, there are power requirements for the OBA output and input lines in the intermediate nodes. Therefore, it is also necessary to control the input optical power and output optical power of the OBA in the intermediate nodes to not exceed the preset power threshold.

[0073] Similar to the preset power threshold in the initial node, the preset power threshold of the intermediate node is related to the output / input lines of the OBA.

[0074] The output optical power of the intermediate node OBA is controlled by controlling the input optical power of the next span. Specifically, the output optical power control of intermediate node n is achieved by controlling the input optical power of the span between intermediate node n and intermediate node n+1, that is, by controlling the built-in VOA of the WSS in intermediate node n+1.

[0075] That is, the input optical power of the span is controlled by controlling the built-in VOA of the WSS in the second node of the intermediate span. Since both nodes in the intermediate span are intermediate nodes, there may be multiple WSSs. In this case, the input optical power of the span is controlled by controlling the WSS that is closest to the OBA in the intermediate node, that is, the WSS located before the OBA in the intermediate node.

[0076] On the other hand, the control of the input optical power of the OBA in the intermediate node can be accomplished through the output of the WSS in the intermediate node and / or the pre-VOA of the OBA in the intermediate node.

[0077] Specifically, a pre-VOA can be set before the OBA in the intermediate node, and the input optical power of the OBA in the intermediate node can be controlled by controlling the pre-VOA. Alternatively, the output of the WSS in the intermediate node can be controlled to ensure that the input optical power of the OBA in the intermediate node meets the requirements.

[0078] Of course, when there are multiple WSSs in an intermediate node, you can control the previous WSS of the OBA in that intermediate node.

[0079] Similarly, the preset power threshold in the intermediate node is the same as the power threshold set for OBA in the starting node. That is, the preset power threshold in the intermediate node is also related to the optical module service type in the electrical layer equipment that emits service light. Different optical module service types correspond to different power thresholds. For example, when the optical module service type is 200G 16QAM (16QAM is the modulation method under 200G), the preset threshold is +1dBm; when the optical module service type is 200G QPSK, the preset threshold is +2.5dBm; and when the optical module service type is 400G 16QAM, the preset threshold is +3dBm.

[0080] Meanwhile, when the service light propagates in the optical layer equipment, the number of waves on the first few nodes is limited, and the input optical power of the OBA reaching each node is also limited. Therefore, for the control of the input optical power of the OBA in the intermediate nodes, based on empirical parameters, the input optical power of the first few intermediate nodes can be not controlled. For example, the input optical power control can be started from the second intermediate node, thereby reducing the workload of configuration.

[0081] Step S250: Adjust the preceding VOA of the OPA in the intermediate node so that the cross loss of the corresponding segment is not lower than the preset cross loss threshold, and make the intra-node attenuation of each intermediate node not lower than the preset intra-node attenuation threshold.

[0082] In this embodiment, in order to ensure the security and efficiency of service light transmission, it is also necessary to control the intra-node attenuation of service light within intermediate nodes to be within the required range, and the inter-segment loss in the optical layer device to be within the required range.

[0083] The threshold for cross-loss is related to the electrical layer equipment corresponding to the optical layer equipment, and specifically to the line-side transmission capability of the electrical layer equipment board. For example, when the board is a 400G TMUX, its line-side transmission capability is 4x22dB, then the cross-loss threshold is set to 22dB. Of course, different line-side transmission capabilities correspond to different cross-loss thresholds, and no specific restrictions are imposed here.

[0084] Once the cross-loss threshold is determined, it is necessary to ensure that the cross-loss of the segment in the optical layer equipment is not lower than the cross-loss threshold. If it is lower than 22dBm, the front VOA of the OPA board of the node in the segment should be adjusted.

[0085] Specifically, for the second segment, i.e. the segment between the initial node and the first intermediate node, the preceding VOA of the OPA of the first intermediate node is adjusted so that the segment loss between the initial node and the first intermediate node is not lower than the preset segment loss threshold.

[0086] The control of intra-node attenuation can be achieved by adjusting the pre-VOA of the corresponding intermediate node by measuring the difference between the output optical power of the OPA and the input optical power of the OBA within the intermediate node.

[0087] The adjustment of the WSS of the intermediate node in step S230 to ensure that the output optical power of the OBA does not exceed the power threshold, and the adjustment of the built-in VOA in the WSS will not affect the node's intra-node attenuation.

[0088] Step S270: Control the output optical signal-to-noise ratio of the OPA in the intermediate node to be no lower than the preset signal-to-noise ratio threshold.

[0089] The signal-to-noise ratio threshold in this embodiment can be determined based on empirical parameters.

[0090] Specifically, the output optical signal-to-noise ratio (SNR) of the OPA within the intermediate node is first detected. If the output SNR of the OPA within the intermediate node is lower than a preset SNR threshold, the WSS within the previous node of the intermediate node is used for local demodulation. Similarly, if the output SNR of the OPA is lower than the preset SNR threshold, the previous node of the intermediate node is also an intermediate node, and it contains multiple WSSs. To distinguish it from the WSS that controls the input optical power of the OBA, the first WSS in this intermediate node can be used for demodulation.

[0091] If the output optical signal-to-noise ratio of the OPA within the intermediate node is not lower than the preset signal-to-noise ratio threshold, then the service optical is transmitted based on the intermediate node.

[0092] Similarly, in the first few nodes of the optical layer device, since there are fewer up-waves, the optical signal-to-noise ratio of the OPA in the node should meet the threshold. In this way, based on empirical parameters, the optical signal-to-noise ratio of the first few nodes can be not controlled. For example, the output optical signal-to-noise ratio of the OPA in the intermediate node can be detected from the second intermediate node to control the optical signal-to-noise ratio.

[0093] Step S290: Configure the next wave based on the end node.

[0094] Thus, the service light is transmitted sequentially based on the nodes in the optical layer equipment, undergoing up-wave and down-wave transmission at each node and the control methods in steps S210 to S270, and finally reaching the terminal node. At the terminal node, the transmission capacity reaches its limit. The service light reaching the terminal node can be demultiplexed through the ODU to obtain service light of different wavelengths. At this time, it is necessary to verify the bit error rate before correction of all service light in the down-wave transmission, that is, to verify the bit error rate before correction of service light of different wavelengths, and to determine whether the service light of different wavelengths meets the conditions for normal transmission. If it does, down-wave transmission through the ODU can be configured at the terminal node so that the service light of different wavelengths obtained after demultiplexing can be down-waved through the ODU to the corresponding second electrical layer equipment.

[0095] In one specific embodiment, if there are 9 nodes, or 9 segments, in the optical layer device, the initial node (node ​​1) is the first segment, the distance from node 1 to the first intermediate node (node ​​2) is the second segment, and so on, with nodes 8 to 9 forming the ninth segment. Figure 2 The specific steps for configuration in the above manner are as follows: Connect the service optical to node 1 and confirm that the optical power of the OMU board output port is correct; transmit the optical power of the OMU output port through the WSS board; adjust the output optical power of the OBA of node 1. At the same time, in order to ensure flatness, the OBA of node 1 uses the default gain. Through the output optical power of the laser of the dimming module, ensure that the average single-wavelength power of the OBA of node 1 does not exceed +1dBm for 200G 16QAM, does not exceed +2.5dBm for 200G QPSK, and does not exceed +3dBm for 400G 16QAM; adjust the cross-loss requirement of the first span to not be lower than 22dB; if it is lower than 22dBm, adjust the front VOA of the OPA board.

[0096] Subsequently, adjust the intra-node attenuation of node 2 to be no less than 15dB. For example, the difference between the output optical power of the OPA and the input optical power of the OBA of node 2 can be read through software. Then, adjust the pre-VOA of the OPA; adjust the input optical power of the second span; adjust the built-in VOA of the WSS module of node 2 closest to the OBA, so that the output optical power of the OBA of node 1 is: 200G 16QAM average single-wavelength power not exceeding +1dBm, 200G QPSK average single-wavelength power not exceeding +2.5dBm, and 400G 16QAM average single-wavelength power not exceeding +3dBm.

[0097] Then, adjust the cross-loss requirement of segments 2, 3, 4, 5, 6, 7, and 8 to be no less than 22dB. If it is less than 22dBm, adjust the pre-VOA of the OPA board. Based on the arrival order of the service light, adjust the intra-node attenuation of nodes 2, 3, 4, 5, 6, 7, and 8 to be no less than 15dB. Adjust the input optical power of segments 3, 4, 5, 6, 7, and 8 so that the average single-wavelength power of the OBA output of the previous node does not exceed +1dBm for 200G 16QAM, +2.5dBm for 200G QPSK, and +3dBm for 400G 16QAM. Adjust the built-in VOA of the second WSS module of node 2 without affecting the 15dB intra-node attenuation of node 2. Test the output optical signal-to-noise ratio of the OPAs of nodes 3, 4, 5, 6, 7, and 8 to see if it is less than 25dB. If <25dB, then the signal is taken down from WSS card 1 of the previous node to the local de-electrode. If ≥25dB, then the signal is passed through at this node; adjust the input ports of the OBAs of the 3rd, 4th, 5th, 6th, 7th, and 8th nodes to ensure that the optical power of the service optical fiber meets the following requirements: 200G 16QAM average single-wavelength power not exceeding +1dBm, 200G QPSK average single-wavelength power not exceeding +2.5dBm, and 400G 16QAM average single-wavelength power not exceeding +3dBm; and each type of optical power should be as flat as possible; at the 9th node, the transmission capacity reaches its limit, verify the bit error rate before correction of all service optical signals taken down, verify whether the transmission meets the conditions for normal transmission, and configure the signal to be taken down via ODU at this node.

[0098] The optical network wavelength division multiplexing (WDM) equipment configuration method proposed in this embodiment can meet service scheduling requirements and can be applied to compact optical network WDM equipment rooms with high bandwidth and point-to-point data center interconnection. Moreover, the above method does not require separate configuration by the equipment company and can be used for automated configuration of WDM equipment in different scenarios. At the same time, it can also be applied to the equipment docking of different equipment manufacturers, and can provide good unified configuration and management capabilities.

[0099] Figure 3 yes Figure 2 The flowchart of step S230 in the illustrated embodiment is shown in an exemplary embodiment. Figure 3 As shown, in an exemplary embodiment, the process of controlling the input optical power and output optical power of the OBA within the intermediate node to not exceed a preset power threshold may include steps S310 to S330, which are described in detail below:

[0100] Step S310: Adjust the input optical power of the intermediate span so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold.

[0101] In this embodiment, the intermediate span includes all other spans in the optical layer device except for the first and last spans, and the first node is the preceding node among the two nodes that form the intermediate span.

[0102] By adjusting the input optical power of the intermediate span, the output optical power of the OBA in the first node of the intermediate span can be kept below the power threshold. The adjustment of the input optical power of the intermediate span can be achieved through the built-in VOA of the WSS in another intermediate node of the intermediate span other than the first node.

[0103] Similarly, another node in the middle segment that is different from the first node is the middle node. There may be multiple WSSs in the middle node. In this case, the fiber input power of the segment can be controlled by controlling the WSS that is closest to the OBA in the other node, that is, the WSS that is located before the OBA in the other node.

[0104] Step S330: Adjust the pre-VOA of the OBA in the intermediate node or adjust the WSS located before the OBA in the intermediate node so that the input optical power of the OBA in the intermediate node does not exceed the power threshold.

[0105] In this embodiment, the OBA input line also has power requirements. Therefore, it is also necessary to control the input optical power of the OBA in the intermediate node to not exceed the preset power threshold.

[0106] Specifically, this can be accomplished through the output of the WSS within the intermediate node and / or the preceding VOA of the OBA within the intermediate node. Similarly, there can be multiple WSSs within the intermediate node. In this case, it can still be accomplished by controlling the preceding WSS of the OBA within the intermediate node.

[0107] This embodiment proposes a method for controlling the input and output optical power of the OBA within the intermediate node, so that the input / output optical power of the OBA within the intermediate node meets the requirements of the OBA line model, thereby achieving the purpose of securely amplifying and transmitting service optical.

[0108] Figure 4 yes Figure 3 The flowchart of step S310 in the illustrated embodiment is shown in an exemplary embodiment. Figure 4 As shown, in an exemplary embodiment, adjusting the input optical power of the intermediate span so that the output optical power of the OBA in the preceding node of the intermediate span does not exceed a power threshold may include step S410, which is described in detail below:

[0109] Step S410: Adjust the built-in VOA of the WSS in the second node of the intermediate span so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold.

[0110] The second node is the latter of the two nodes that form the middle span, that is, another intermediate node in the middle span that is different from the first node.

[0111] The second node is an intermediate span, which may contain multiple WSSs. In this case, the WSS that is closest to the OBA in the second node is selected, that is, the WSS located before the OBA in the second node. The purpose of controlling the input optical power of the span is achieved through the built-in VOA of this WSS.

[0112] This embodiment proposes that the output optical power of the intermediate node can be controlled by controlling the built-in VOA of the WSS in the second node, so that the output optical power of the OBA in the intermediate node meets the requirements of the OBA line type, thereby achieving the purpose of securely amplifying and transmitting service optical.

[0113] Figure 5 yes Figure 2 The flowchart of step S250 in the illustrated embodiment is shown in an exemplary embodiment. Figure 5 As shown, in an exemplary embodiment, adjusting the pre-VOA of the OPA within the intermediate node to ensure that the cross-segment loss is not lower than a preset cross-segment loss threshold, and ensuring that the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold, may include steps S510 to S530, which are described in detail below:

[0114] Step S510: Detect the span loss between intermediate spans.

[0115] The intermediate spans include the other spans in the multiple nodes of the optical layer device, excluding the first and last spans.

[0116] In this embodiment, it is necessary to control the cross-span loss of the intermediate segment to be no less than the cross-span loss threshold. The setting of this cross-span loss threshold is related to the electrical layer device corresponding to the optical layer device.

[0117] Step S530: If there is a target segment with a cross-loss lower than the cross-loss threshold, adjust the preceding VOA of the OPA within the node corresponding to the target segment.

[0118] If the cross loss of a certain intermediate span is lower than the cross loss threshold, the VOA before the OPA in the node within that intermediate span can be adjusted. An intermediate span includes two nodes, and each node usually contains an OPA, except for the second span (in optical layer equipment, the second span is the span from the initial node to the first intermediate node, and the initial node does not have an OPA). Therefore, the cross loss of that intermediate span can be made not lower than the cross loss threshold by adjusting the VOA before the OPA in the second node of the intermediate span.

[0119] This embodiment proposes a method for controlling the cross-span loss in the intermediate segment, so that the cross-span loss between nodes in the optical layer device meets the transmission requirements and realizes normal transmission between nodes of the optical layer device.

[0120] Figure 6 yes Figure 2 A flowchart of step S250 in another exemplary embodiment of the illustrated example. (See attached flowchart.) Figure 6 As shown, in an exemplary embodiment, the process of adjusting the preceding VOA of the OPA within the intermediate node to ensure that the cross-segment loss is not lower than a preset cross-segment loss threshold and that the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold may include steps S610 to S630, which are described in detail below:

[0121] Step S610: The power difference between the OPA output optical power and the OBA input optical power in the intermediate node is taken as the internal attenuation of the intermediate node.

[0122] In this embodiment, the output optical power of the OPA and the input optical power of the OBA within the intermediate node are detected, and the power difference between the output optical power of the OPA and the input optical power of the OBA is used as the internal attenuation of the intermediate node to confirm whether the internal attenuation of the intermediate node meets the requirements.

[0123] Step S630: Adjust the pre-VOA of the OPA in the intermediate node so that the internal decay of the intermediate node is not lower than the preset internal decay threshold.

[0124] If the internal decay of the intermediate node does not meet the requirements, the internal decay of the intermediate node can be adjusted by adjusting the preceding VOA of the OPA in the intermediate node so that the internal decay of the intermediate node is not lower than the preset internal decay threshold.

[0125] This embodiment proposes a method for controlling internal attenuation in intermediate nodes, so that the internal attenuation of service light in intermediate nodes is within the required range during transmission, thereby ensuring the quality of service light transmission.

[0126] Figure 7 yes Figure 2 The flowchart of step S270 in the illustrated embodiment is shown in an exemplary embodiment. Figure 7 As shown, in an exemplary embodiment, the process of ensuring that the output optical signal-to-noise ratio of the OPA within the control intermediate node is not lower than a preset signal-to-noise ratio threshold may include steps S710 to S750, which are described in detail below:

[0127] Step S710: Detect the output optical signal-to-noise ratio of the OPA within the intermediate node.

[0128] In this embodiment, it is necessary to control the output optical signal-to-noise ratio of the OPA within the intermediate node to be lower than the preset signal-to-noise ratio threshold.

[0129] Step S730: If the output optical signal-to-noise ratio of the OPA in the intermediate node is lower than the signal-to-noise ratio threshold, then the WSS in the previous node of the intermediate node is used for local demodulation.

[0130] If the output optical signal-to-noise ratio of the OPA in the intermediate node is lower than the signal-to-noise ratio threshold, it can be down-waved from the WSS of the previous node of the intermediate node to the local demodulation.

[0131] Of course, the initial node may not have WSS, and the first few nodes in the optical layer device have fewer uplinks. Therefore, the output optical signal-to-noise ratio of OPA can be controlled starting from the second intermediate node, i.e. the third node in the optical layer device.

[0132] Step S750: If the output optical signal-to-noise ratio of the OPA in the intermediate node is not lower than the signal-to-noise ratio threshold, then the service optical is transmitted based on the intermediate node.

[0133] If the output optical signal-to-noise ratio of the OPA within the intermediate node is not lower than the signal-to-noise ratio threshold, it proves that the output of the OPA within the intermediate node meets the requirements, and the service optical can be transmitted based on the intermediate node.

[0134] This embodiment proposes controlling the output optical signal-to-noise ratio of the OPA within the intermediate node to ensure that the output of the OPA meets the requirements, thereby guaranteeing the performance of service optical transmission.

[0135] Figure 8 yes Figure 2 The flowchart of step S290 in the illustrated embodiment is shown in an exemplary embodiment. Figure 8 As shown, in an exemplary embodiment, the terminal node includes an ODU, and the process of configuring the next wave based on the terminal node may include steps S810 to S850, which are described in detail below:

[0136] Step S810: Perform wavelength division based on the ODU of the terminal node to obtain service light of different wavelengths.

[0137] In this embodiment, when the service light reaches the terminal node, the transmission capacity reaches its limit. At this time, the service light arriving at the ODU is the service light obtained by combining service light of different wavelengths. The ODU will perform wavelength division processing on the arriving service light to obtain service light of different wavelengths.

[0138] Step S830: Verify the bit error rate before correction for service light of different wavelengths.

[0139] Service light of different wavelengths needs to be sent to the ODU for downlink transmission. First, the bit error rate of all service light in the downlink is verified to verify whether the conditions for normal transmission are met.

[0140] Step S850: If the bit error rate before correction of service light of different wavelengths meets the transmission conditions, then configure the service light of different wavelengths to be down-waved via ODU.

[0141] If the error rate before correction meets the transmission conditions, then the ODU is configured to transmit the service wave at the terminal node, so that the service light of different wavelengths can be transmitted to the corresponding electrical layer equipment.

[0142] Figure 9 This is a schematic diagram illustrating the structure of an optical network wavelength division multiplexing (WDM) device configuration apparatus according to an exemplary embodiment. Figure 9 As shown, in an exemplary embodiment, the device is configured in an optical network system, which includes an electrical layer device for emitting service light and an optical layer device for transmitting service light. The optical layer device includes multiple nodes, which sequentially include a starting node, at least one intermediate node, and a terminal node. The starting node includes an OMU and an OBA, and the intermediate node includes an OPA, at least one WSS, and an OBA. Specifically, it includes:

[0143] The electrical layer device configuration module 910 is configured to adjust the optical module laser on the electrical layer device so that the output optical power of the OBA at the starting node receiving the service light emitted by the optical module laser does not exceed a preset power threshold.

[0144] The intermediate node configuration module 930 is configured to control the input optical power and output optical power of the OBA within the intermediate node to not exceed a preset power threshold.

[0145] The pre-VOA configuration module 950 is configured to adjust the pre-VOA of the OPA in the intermediate node so that the cross loss of the corresponding segment is not lower than the preset cross loss threshold, and the intra-node attenuation of each intermediate node is not lower than the preset intra-node attenuation threshold.

[0146] The output optical signal-to-noise ratio configuration module 970 is configured to control the output optical signal-to-noise ratio of the OPA within the intermediate node to be no lower than a preset signal-to-noise ratio threshold.

[0147] The terminal configuration module 990 is configured to configure the next wave based on the terminal configuration.

[0148] The optical network wavelength division multiplexing (WDM) equipment configuration terminal proposed in this embodiment can be used for wavelength division multiplexing of service optical signals.

[0149] In one embodiment, the intermediate node configuration module includes:

[0150] The output optical power configuration unit is configured to adjust the input optical power of the intermediate span so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold; wherein, the intermediate span includes the other spans in the optical layer device except for the first span and the last span, and the first node is the preceding node of the two nodes that form the intermediate span;

[0151] The input optical power configuration unit is configured to adjust the pre-VOA of the OBA in the intermediate node or adjust the WSS located before the OBA in the intermediate node so that the input optical power of the OBA in the intermediate node does not exceed the power threshold.

[0152] In one embodiment, the output optical power configuration unit includes:

[0153] The output optical power configuration module is configured to adjust the built-in VOA of the WSS in the second node of the intermediate span so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold; wherein, the second node is the latter of the two nodes that form the intermediate span.

[0154] In one embodiment, the front-end VOA configuration module includes:

[0155] The cross-span loss detection unit is configured to detect cross-span loss between intermediate spans; wherein, intermediate spans include the other spans in multiple nodes of the optical layer device, excluding the first and last spans;

[0156] The cross-loss configuration unit is configured to adjust the preceding VOA of the OPA within the node corresponding to the target cross-loss if there is a target cross-loss that is lower than the cross-loss threshold.

[0157] In one embodiment, the front-end VOA configuration module includes:

[0158] The node in-node attenuation detection unit is configured to use the power difference between the OPA output optical power and the OBA input optical power in the intermediate node as the in-node attenuation.

[0159] The node internal decay control unit is configured to adjust the pre-VOA of the OPA in the intermediate node so that the internal decay of the intermediate node is not lower than the preset internal decay threshold.

[0160] In one embodiment, the output optical signal-to-noise ratio configuration module includes:

[0161] The output optical signal-to-noise ratio detection unit is configured to detect the output optical signal-to-noise ratio of the OPA within the intermediate node.

[0162] The downwave unit is configured to, if the output optical signal-to-noise ratio of the OPA in the intermediate node is lower than the signal-to-noise ratio threshold, downwave to local demodulation based on the WSS in the previous node of the intermediate node;

[0163] The transparent transmission unit is configured to transmit service light based on the intermediate node if the output optical signal-to-noise ratio of the OPA in the intermediate node is not lower than the signal-to-noise ratio threshold.

[0164] In one embodiment, the end node configuration includes:

[0165] The wavelength division unit is configured to perform wavelength division based on the ODU of the terminal node to obtain service light of different wavelengths;

[0166] The pre-correction bit error rate verification unit is configured to verify the pre-correction bit error rate of service light of different wavelengths;

[0167] The downwave configuration unit is configured to configure the downwave of service light of different wavelengths via ODU if the bit error rate before correction meets the transmission conditions.

[0168] Figure 10 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown.

[0169] It should be noted that, Figure 10 The computer system 1000 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0170] like Figure 10 As shown, the computer system 1000 includes a Central Processing Unit (CPU) 1001, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 1002 or programs loaded from Storage Unit 1008 into Random Access Memory (RAM) 1003. The RAM 1003 also stores various programs and data required for system operation. The CPU 1001, ROM 1002, and RAM 1003 are interconnected via a bus 1004. An Input / Output (I / O) interface 1005 is also connected to the bus 1004.

[0171] The following components are connected to I / O interface 1005: an input section 1006 including a keyboard, mouse, etc.; an output section 1007 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to I / O interface 1005 as needed. Removable media 1011, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 1010 as needed so that computer programs read from them can be installed into storage section 1008 as needed.

[0172] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 1009, and / or installed from removable medium 1011. When the computer program is executed by central processing unit (CPU) 1001, it performs various functions defined in the system of this application.

[0173] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: 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), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0174] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0175] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0176] Another aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the aforementioned optical network wavelength division multiplexing (WDM) device configuration method. This computer-readable storage medium may be included in the electronic device described in the above embodiments, or it may exist independently and not incorporated into the electronic device.

[0177] Another aspect of this application provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the optical network wavelength division multiplexing (WDM) device configuration method provided in the various embodiments described above.

[0178] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A method for configuring an optical network wavelength division multiplexing (WDM) device, characterized in that, The method is applied to an optical network system, which includes electrical layer equipment for emitting service light and optical layer equipment for transmitting service light. The optical layer equipment includes multiple nodes, which sequentially include a starting node, at least one intermediate node, and a terminal node. The starting node includes an OMU and an OBA, and the intermediate node includes an OPA, at least one WSS, and an OBA. Adjust the optical module laser on the electrical layer device so that the output optical power of the OBA at the starting node receiving the service light emitted by the optical module laser does not exceed a preset power threshold. The input optical power and output optical power of the OBA within the intermediate node are controlled to not exceed a preset power threshold. Adjust the preceding VOA of the OPA within the intermediate node so that the cross-segment loss is not lower than the preset cross-segment loss threshold, and so that the intra-node attenuation of each intermediate node is not lower than the preset intra-node attenuation threshold. The output optical signal-to-noise ratio of the OPA within the intermediate node is controlled to be no lower than a preset signal-to-noise ratio threshold. The next wave is configured based on the aforementioned terminal node.

2. The method according to claim 1, characterized in that, Controlling the input optical power and output optical power of the OBA within the intermediate node to not exceed a preset power threshold includes: The input optical power of the intermediate span is adjusted so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold; wherein, the intermediate span includes the other spans in the optical layer device except for the first span and the last span, and the first node is the preceding node of the two nodes forming the intermediate span; Adjust the pre-VOA of the OBA within the intermediate node or adjust the WSS located before the OBA within the intermediate node so that the input optical power of the OBA within the intermediate node does not exceed the power threshold.

3. The method according to claim 2, characterized in that, The adjustment of the input optical power of the intermediate span to ensure that the OBA output optical power in the preceding node of the intermediate span does not exceed the power threshold includes: The built-in VOA of the WSS in the second node of the intermediate span is adjusted so that the output optical power of the OBA in the first node of the intermediate span does not exceed the power threshold; wherein, the second node is the latter of the two nodes forming the intermediate span.

4. The method according to claim 1, characterized in that, The step of adjusting the preceding VOA of the OPA within the intermediate node to ensure that the cross-segment loss is not lower than a preset cross-segment loss threshold, and to ensure that the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold, includes: Detecting the span loss between intermediate spans; wherein, the intermediate spans include the other spans among the multiple nodes of the optical layer device, excluding the first span and the last span; If there is a target segment with a cross-loss lower than the cross-loss threshold, then adjust the preceding VOA of the OPA within the node corresponding to the target segment.

5. The method according to claim 1, characterized in that, The step of adjusting the preceding VOA of the OPA within the intermediate node to ensure that the cross-segment loss is not lower than a preset cross-segment loss threshold, and to ensure that the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold, includes: The power difference between the OPA output optical power and the OBA input optical power within the intermediate node is taken as the internal attenuation of the intermediate node; Adjust the preceding VOA of the OPA within the intermediate node so that the internal decay of the intermediate node is not lower than the preset internal decay threshold.

6. The method according to claim 1, characterized in that, The control of the output optical signal-to-noise ratio of the OPA within the intermediate node to be not lower than a preset signal-to-noise ratio threshold includes: Detect the output optical signal-to-noise ratio of the OPA within the intermediate node; If the output optical signal-to-noise ratio of the OPA in the intermediate node is lower than the signal-to-noise ratio threshold, then the WSS in the previous node of the intermediate node is used for local demodulation. If the output optical signal-to-noise ratio of the OPA within the intermediate node is not lower than the signal-to-noise ratio threshold, then the service optical is transmitted based on the intermediate node.

7. The method according to claim 1, characterized in that, The terminal node includes an ODU, and the configuration of the next wave based on the terminal node includes: Based on the ODU of the terminal node, wavelength division is performed to obtain service light of different wavelengths; Verify the bit error rate before correction for the service light of different wavelengths; If the bit error rate before correction of the service light of different wavelengths meets the transmission conditions, then the service light of different wavelengths is configured to be down-waved via ODU.

8. A configuration terminal for an optical network wavelength division multiplexing (WDM) device, characterized in that, Configured in an optical network system, the optical network system includes electrical layer equipment for emitting service optical and optical layer equipment for transmitting service optical. The optical layer equipment includes multiple nodes, which sequentially include a starting node, at least one intermediate node, and a terminal node. The starting node includes an OMU and an OBA, and the intermediate node includes an OPA, at least one WSS, and an OBA. The terminal includes: The electrical layer device configuration module is configured to adjust the optical module laser on the electrical layer device so that the output optical power of the OBA at the starting node receiving the service light emitted by the optical module laser does not exceed a preset power threshold. The intermediate node configuration module is configured to control the input optical power and output optical power of the OBA within the intermediate node to not exceed a preset power threshold. The pre-VOA configuration module is configured to adjust the pre-VOA of the OPA in the intermediate node so that the cross loss of the corresponding segment is not lower than the preset cross loss threshold, and the intra-node attenuation of each intermediate node is not lower than the preset intra-node attenuation threshold. The output optical signal-to-noise ratio configuration module is configured to control the output optical signal-to-noise ratio of the OPA within the intermediate node to be no lower than a preset signal-to-noise ratio threshold. The terminal node configuration module is configured to configure the next wave based on the terminal node configuration.

9. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more computer programs that, when executed by the one or more processors, cause the electronic device to perform the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, It stores computer-readable instructions that, when executed by the processor of a computer, cause the computer to perform the method described in any one of claims 1-7.

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