An intelligent debugging method and device for integrated wavelength division multiplexing equipment

Abstract

The present application relates to the technical field of wavelength division multiplexing, and in particular to an intelligent adjustment method and device for integrated wavelength division multiplexing equipment. The present application first determines the optimal input and output optical power target values ​​through theoretical calculations, and then realizes closed-loop adjustment by combining the monitoring system constructed by MEMS optical switches and spectrum analyzers; specifically, the single-wave power is calculated by the "maximum output optical power-channel number conversion" method, and the input target value is inferred based on the optical amplifier gain, while considering the transmission distance to set the input threshold of the power amplifier, and finally adopts bidirectional intelligent adjustment to dynamically optimize the system performance; combining theoretical calculations, real-time monitoring and automatic adjustment, not only the precise control of the input optical power of each channel is realized, and the gain of each channel output by the optical amplifier module is ensured to be flat, but also the consistency of power between channels is continuously maintained through real-time monitoring and automatic adjustment mechanisms, thereby improving the signal reception quality.

Description

Technical Field

[0001] The present application relates to the technical field of wavelength division multiplexing, and in particular to an intelligent debugging method and device for integrated wavelength division multiplexing equipment. Background Art

[0002] With the rapid development of optical communication networks, wavelength division multiplexing technology plays an important role in improving transmission capacity. Integrated wavelength division multiplexing equipment greatly improves the utilization rate of optical fibers by multiplexing multiple optical signals of different wavelengths into the same optical fiber for transmission, and has become an indispensable key device in modern optical communication networks.

[0003] Existing integrated wavelength division multiplexing equipment uses a wavelength division multiplexer to combine multiple wavelength optical signals, amplify them through an optical amplifier, transmit them to the receiving end through an optical fiber, and then amplify the received signal by a power amplifier. This structure enables the equipment to transmit multiple wavelength signals simultaneously and compensate for transmission losses through optical amplification.

[0004] However, the existing integrated wavelength division equipment only requires the optical power value of each channel input to the panel to be within the input range of the optical amplifier module, and does not accurately control the optical power of each channel, resulting in uneven gains of each channel output by the optical amplifier module. This power unevenness between channels will be further amplified by the power amplifier after being transmitted to the receiving end through the optical fiber, ultimately resulting in significant differences in the signal-to-noise ratio of each channel, seriously affecting the signal reception quality; this situation needs to be further improved. Summary of the invention

[0005] In order to solve the problem that the existing integrated wavelength division multiplexing equipment does not accurately control the optical power of each channel, resulting in uneven gain of each channel output by the optical amplifier module, which affects the signal reception quality, the present application provides an intelligent debugging method and device for an integrated wavelength division multiplexing equipment, which adopts the following technical solutions:

[0006] In a first aspect, the present application provides an intelligent debugging method for an integrated wavelength division multiplexing device, which is applied to an intelligent debugging device for an integrated wavelength division multiplexing device, wherein the intelligent debugging device includes:

[0007] A wavelength division multiplexer module, comprising a wavelength division multiplexer with an adjustable optical attenuator, wherein the adjustable optical attenuator is used to adjust the optical power of each channel;

[0008] An optical amplifier module connected to the output end of the wavelength division multiplexer module;

[0009] Power amplifier module;

[0010] An optical power monitoring module comprises a MEMS optical switch and a spectrum analyzer, wherein the first, second and third input terminals of the MEMS optical switch are respectively connected to the optical amplifier module input terminal, the optical amplifier module output terminal and the power amplifier module output terminal, and the common terminal is connected to the spectrum analyzer;

[0011] The method comprises the following steps:

[0012] Obtain the maximum output optical power, total number of channels M and gain of the optical amplifier module, where M is a positive integer;

[0013] According to the maximum output optical power of the optical amplifier module and the total number of channels M, the single-wavelength output optical power of the optical amplifier module is calculated according to the formula "single-wavelength output optical power = maximum output optical power - 10logM", and then the single-wavelength input optical power target value of the optical amplifier module is determined based on the gain of the optical amplifier module;

[0014] Determine the target value of the single-wave input optical power of the power amplifier module according to the transmission distance of the device;

[0015] By adjusting the adjustable optical attenuator in the wavelength division multiplexer module, the optical power of each channel reaches the target value of the single-wavelength input optical power of the optical amplifier module;

[0016] Based on the single-wavelength input optical power target value of the optical amplifier module and the single-wavelength input optical power target value of the power amplifier module, intelligent adjustment in the sending direction and the receiving direction is performed.

[0017] By adopting the above technical solution, in order to solve the problem of uneven gain of each channel output by the optical amplifier module in the integrated wavelength division multiplexing device, the present application first determines the optimal input and output optical power target value through theoretical calculation, and then realizes closed-loop adjustment in combination with the monitoring system constructed by the MEMS optical switch and the spectrum analyzer; specifically, the single-wave power is calculated by the "maximum output optical power-channel number conversion" method, and the input target value is reversed based on the optical amplifier gain, and the input threshold of the power amplifier is set by considering the transmission distance, and finally bidirectional intelligent adjustment is used to dynamically optimize the system performance; the combination of theoretical calculation, real-time monitoring and automatic adjustment not only realizes the precise control of the input optical power of each channel, ensures the flat gain of each channel output by the optical amplifier module, but also continuously maintains the consistency of power between channels through real-time monitoring and automatic adjustment mechanism, thereby improving the signal reception quality.

[0018] Optional intelligent commissioning in the sending direction includes the following steps:

[0019] Scan the combined signal at the input end of the optical amplifier module through the optical power monitoring module to obtain the center frequency, optical power and number of channels of a single channel;

[0020] Calculating actual single-wavelength input optical power according to the splitting ratio at the input end of the optical amplifier module and the optical power;

[0021] Based on the comparison result between the actual single-wavelength input optical power and the single-wavelength input optical power target value of the optical amplifier module, the adjustable optical attenuator value of the wavelength division multiplexer is adjusted:

[0022] When the actual value is greater than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is increased;

[0023] When the actual value is less than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is reduced.

[0024] By adopting the above technical solution, the present application first uses spectral analysis technology to obtain the center frequency, optical power and number of channels of each channel, then considers the influence of the splitting ratio to calculate the actual input value, and finally automatically adjusts the attenuation value through comparison results to form a dynamic closed-loop control; it realizes precise control of the input optical power of each channel, and ensures the long-term stable operation of the system through a closed-loop feedback mechanism, significantly improving the overall performance of the wavelength division multiplexing system.

[0025] Optional intelligent commissioning in the receiving direction includes the following steps:

[0026] Obtain the input optical power of the adjustable optical attenuator of the power amplifier module;

[0027] Determine the initial attenuation value of the adjustable optical attenuator of the power amplifier module according to the adjustable optical attenuator input optical power:

[0028] When the input optical power of the adjustable optical attenuator is less than or equal to -20dBm, the attenuation value of the adjustable optical attenuator of the power amplifier module is set to 0, and single-wave judgment is performed;

[0029] When the input optical power of the adjustable optical attenuator is greater than -20dBm, single-wavelength judgment is performed.

[0030] By adopting the above technical solution, the present application first obtains the input optical power of the adjustable optical attenuator. When it is detected that the input optical power is lower than or equal to -20dBm, the attenuation value is automatically set to 0 to ensure the signal strength; when the input optical power is higher than -20dBm, the single-wave judgment process is entered for fine adjustment; the threshold judgment is combined with automatic adjustment, which not only realizes the intelligent control of the attenuation value of the power amplifier module, but also ensures the optimal reception performance of the signal under different input power conditions through the critical point strategy, fundamentally improving the adaptability and reliability of the system.

[0031] Optionally, performing single-wave judgment includes the following steps:

[0032] Scan the combined signal at the output end of the power amplifier module through the optical power monitoring module to obtain the number of channels N, where N is a positive integer;

[0033] If the number of channels is less than 1, the commissioning is terminated;

[0034] If the number of channels is greater than or equal to 1, the single-wavelength input optical power is calculated according to "single-wavelength input optical power = variable optical attenuator input optical power - 10*logN";

[0035] Based on the single-wavelength input optical power, the final adjustable optical attenuator value of the power amplifier module is determined:

[0036] When -21dBm≤single-wave input optical power≤-19dBm, set the adjustable optical attenuator value to 0;

[0037] When -19dBm<single-wavelength input optical power<0dBm, the adjustable optical attenuator setting value is calculated according to "adjustable optical attenuator value = 20-single-wavelength input optical power value".

[0038] By adopting the above technical solution, in order to solve the problem that the power amplifier module lacks accurate single-wave power calculation and dynamic attenuation value adjustment mechanism in a multi-channel scenario; the application calculates the single-wave power through the logarithmic relationship of "10*logN", and sets -21dBm to -19dBm as the zero attenuation range, and for the -19dBm to 0dBm range, the linear relationship of "20-single-wave input optical power value" is used to dynamically adjust the attenuation value; the automatic adjustment of the attenuation value of the power amplifier module is realized, and the mathematical model is used to ensure that each channel operates at a more optimal power point, which significantly improves the overall performance and stability of the system.

[0039] Optionally, during the process of performing intelligent commissioning in the sending direction and the receiving direction, the method further includes the following steps:

[0040] Controlling the polling switching of the MEMS optical switch to monitor the optical power of the optical amplifier module input end, the optical amplifier module output end and the power amplifier module output end;

[0041] When a change in the number of channels or optical power at the input of the optical amplifier module is detected, intelligent adjustment in the sending direction is triggered;

[0042] When a change in the number of channels or optical power at the output of the power amplifier module is detected, intelligent adjustment in the receiving direction is triggered.

[0043] By adopting the above technical solution, the existing wavelength division multiplexing system lacks real-time monitoring and dynamic adjustment mechanisms and cannot respond to system changes in a timely manner. For example, in actual operation, when a channel fails or the power fluctuates, if there is no real-time monitoring mechanism, the system performance may continue to deteriorate for hours or even days before being discovered; the present application uses a MEMS optical switch to automatically switch and monitor between the three key points of the optical amplifier input, output and power amplifier output. Once a change in the number of channels or optical power is detected, the intelligent adjustment process in the corresponding direction is immediately triggered; real-time monitoring of system parameters is achieved, and the intelligent triggering mechanism is used to ensure that the system can quickly respond to various changes, fundamentally improving the reliability and maintenance efficiency of the wavelength division multiplexing system.

[0044] Optionally, the method further comprises the following steps:

[0045] After the user connects the optical fiber to the device panel, start the intelligent commissioning in any of the following ways:

[0046] Trigger and start intelligent commissioning through the button on the device panel;

[0047] Trigger and start intelligent commissioning through the network management system.

[0048] By adopting the above technical solution, users can choose to start the commissioning by directly pressing a dedicated button on the equipment panel, or trigger the commissioning process with one click through the remote network management system, depending on the on-site situation. This simplifies the operational process of commissioning startup and expands the remote commissioning capability through access to the network management system, significantly improving the flexibility and efficiency of equipment maintenance, allowing non-professionals to easily complete the commissioning operation.

[0049] In a second aspect, the present application provides an intelligent debugging device integrated with a wavelength division multiplexing device, including:

[0050] A wavelength division multiplexer module, comprising a wavelength division multiplexer with an adjustable optical attenuator, wherein the adjustable optical attenuator is used to adjust the optical power of each channel;

[0051] An optical amplifier module connected to the output end of the wavelength division multiplexer module;

[0052] Power amplifier module;

[0053] An optical power monitoring module comprises a MEMS optical switch and a spectrum analyzer, wherein the first, second and third input terminals of the MEMS optical switch are respectively connected to the optical amplifier module input terminal, the optical amplifier module output terminal and the power amplifier module output terminal, and the common terminal is connected to the spectrum analyzer;

[0054] Processor for:

[0055] Obtain the maximum output optical power, total number of channels M and gain of the optical amplifier module, where M is a positive integer;

[0056] According to the maximum output optical power of the optical amplifier module and the total number of channels M, the single-wavelength output optical power of the optical amplifier module is calculated according to the formula "single-wavelength output optical power = maximum output optical power - 10logM", and then the single-wavelength input optical power target value of the optical amplifier module is determined based on the gain of the optical amplifier module;

[0057] Determine the target value of the single-wave input optical power of the power amplifier module according to the transmission distance of the device;

[0058] By adjusting the adjustable optical attenuator in the wavelength division multiplexer module, the optical power of each channel reaches the target value of the single-wavelength input optical power of the optical amplifier module;

[0059] Based on the single-wavelength input optical power target value of the optical amplifier module and the single-wavelength input optical power target value of the power amplifier module, intelligent adjustment in the sending direction and the receiving direction is performed.

[0060] Optionally, the processor is further configured to:

[0061] In the intelligent commissioning of the sending direction:

[0062] Control the optical power monitoring module to scan the combined signal at the input end of the optical amplifier module to obtain the center frequency, optical power and number of channels of a single channel;

[0063] Calculating actual single-wavelength input optical power according to the splitting ratio at the input end of the optical amplifier module and the optical power;

[0064] Based on the comparison result between the actual single-wavelength input optical power and the single-wavelength input optical power target value of the optical amplifier module, the adjustable optical attenuator value of the wavelength division multiplexer is adjusted:

[0065] When the actual value is greater than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is increased;

[0066] When the actual value is less than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is reduced.

[0067] Optionally, the processor is further configured to:

[0068] In the intelligent commissioning of the receiving direction:

[0069] Obtain the input optical power of the adjustable optical attenuator of the power amplifier module;

[0070] Determine the initial attenuation value of the adjustable optical attenuator of the power amplifier module according to the adjustable optical attenuator input optical power:

[0071] When the input optical power of the adjustable optical attenuator is less than or equal to -20dBm, the attenuation value of the adjustable optical attenuator of the power amplifier module is set to 0, and single-wave judgment is performed;

[0072] When the input optical power of the adjustable optical attenuator is greater than -20dBm, single-wavelength judgment is performed.

[0073] In summary, the present application includes at least one of the following beneficial technical effects:

[0074] This application first determines the optimal input and output optical power target values ​​through theoretical calculation, and then realizes closed-loop regulation by combining the monitoring system constructed by MEMS optical switch and spectrum analyzer; specifically, the single-wave power is calculated by the "maximum output optical power-channel number conversion" method, and the input target value is inferred based on the optical amplifier gain, while considering the transmission distance to set the input threshold of the power amplifier, and finally adopts bidirectional intelligent adjustment to dynamically optimize the system performance; combining theoretical calculation, real-time monitoring and automatic adjustment, not only realizes the precise control of the input optical power of each channel, ensures the flatness of the gain of each channel output by the optical amplifier module, but also continuously maintains the consistency of power between channels through real-time monitoring and automatic adjustment mechanism, thereby improving the signal reception quality;

[0075] This application first uses spectrum analysis technology to obtain the center frequency, optical power and number of channels of each channel, then calculates the actual input value considering the influence of the splitting ratio, and finally automatically adjusts the attenuation value by comparing the results to form a dynamic closed-loop control; it realizes the precise control of the input optical power of each channel, and ensures the long-term stable operation of the system through a closed-loop feedback mechanism, significantly improving the overall performance of the wavelength division multiplexing system;

[0076] The present application first obtains the input optical power of the adjustable optical attenuator. When it is detected that the input optical power is lower than or equal to -20dBm, the attenuation value is automatically set to 0 to ensure the signal strength. When the input optical power is higher than -20dBm, the single-wave judgment process is entered for fine adjustment. The combination of threshold judgment and automatic adjustment not only realizes the intelligent control of the attenuation value of the power amplifier module, but also ensures the optimal reception performance of the signal under different input power conditions through the critical point strategy, fundamentally improving the adaptability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 It is a flow chart of an intelligent debugging method for an integrated wavelength division multiplexing device according to an embodiment of the present application;

[0078] Figure 2 It is an overall block diagram of the integrated wavelength division multiplexing device of the embodiment of the present application;

[0079] Figure 3 It is a schematic diagram of the structure of the wavelength division multiplexer module of the embodiment of the present application;

[0080] Figure 4 is a structural diagram of an optical power monitoring module according to an embodiment of the present application;

[0081] Figure 5 It is a flow chart of intelligent debugging of the sending direction in an intelligent debugging method of an integrated wavelength division multiplexing device according to an embodiment of the present application;

[0082] Figure 6 It is a flow chart of intelligent debugging of the receiving direction in an intelligent debugging method of an integrated wavelength division multiplexing device according to an embodiment of the present application;

[0083] Figure 7 It is a flow chart of executing single-wavelength judgment in an intelligent debugging method for an integrated wavelength division multiplexing device according to an embodiment of the present application;

[0084] Figure 8 It is a flow chart of triggering intelligent debugging in an intelligent debugging method for an integrated wavelength division multiplexing device according to an embodiment of the present application. DETAILED DESCRIPTION

[0085] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to any or all possible combinations comprising one or more listed items.

[0086] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0087] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0088] In a first aspect, the present application provides an intelligent debugging device for an integrated wavelength division multiplexing device, wherein the intelligent debugging device includes a wavelength division multiplexer module, an optical amplifier module, a power amplifier module and an optical power monitoring module, wherein the wavelength division multiplexer module includes a wavelength division multiplexer with an adjustable optical attenuator, and the adjustable optical attenuator is used to adjust the optical power of each channel; the optical amplifier module is connected to the output end of the wavelength division multiplexer module; the optical power monitoring module includes a MEMS optical switch and a spectrum analyzer, wherein the first, second and third input ends of the MEMS optical switch are respectively connected to the input end of the optical amplifier module, the output end of the optical amplifier module and the output end of the power amplifier module, and the common end is connected to the spectrum analyzer.

[0089] Reference Figure 1 , the method comprises the following steps:

[0090] S110. Obtain the maximum output optical power, the total number of channels M, and the gain of the optical amplifier module, where M is a positive integer.

[0091] In this embodiment, the maximum output optical power of the optical amplifier module refers to the maximum optical power value that can be output under rated working conditions, and the total number of channels M refers to the maximum number of wavelength multiplexing supported by the device, and a typical value may be 24, 48 or 96 channels.

[0092] Specifically, the maximum output optical power can be obtained by reading the factory parameters of the optical amplifier module, or by measuring at the output end of the optical amplifier module with an optical power meter; the gain value can be read from the device configuration parameters; the total number of channels M can be selected according to actual business needs, and in this embodiment, M=48 is selected as an example.

[0093] S120. According to the maximum output optical power of the optical amplifier module and the total number of channels M, the single-wavelength output optical power of the optical amplifier module is calculated according to the formula "single-wavelength output optical power = maximum output optical power - 10logM", and then the single-wavelength input optical power target value of the optical amplifier module is determined based on the gain of the optical amplifier module.

[0094] In this embodiment, in order to ensure that the power of each channel is balanced, it is necessary to calculate the single-wavelength output optical power. Since the power is superimposed on a logarithmic scale, when the power of M channels is equal, the total power is 10logM greater than the single-wavelength power. Therefore, when the maximum output optical power (such as 20dBm) and the number of channels M (such as 48) are known, the single-wavelength output optical power can be calculated to be 3.19dBm.

[0095] Specifically, after obtaining the single-wavelength output optical power, combined with the gain value of the optical amplifier (such as 23dB), the single-wavelength input optical power target value of the optical amplifier module can be inferred. For example, when the single-wavelength output optical power is 3.19dBm and the gain is 23dB, the single-wavelength input optical power target value should be -19.81dBm, which will be used as a reference standard for subsequent wavelength division multiplexer adjustment.

[0096] S130. Determine a target value of a single-wave input optical power of a power amplifier module according to a transmission distance of the device.

[0097] In this embodiment, the single-wave input optical power target value of the power amplifier module needs to be determined according to the actual transmission distance of the device. The longer the transmission distance, the greater the loss of the optical signal during the transmission process, so a higher input power is required to compensate for these losses. Generally speaking, the transmission loss of a standard single-mode optical fiber is about 0.2dB / km.

[0098] Specifically, the target value can be determined in the following way: first determine the transmission distance (such as 80km), calculate the total transmission loss (such as 16dB), then consider the system reserve margin (such as 3dB), and finally determine the appropriate single-wave input optical power target value of the power amplifier module. For example, when the transmission distance is 80km, the single-wave input optical power target value of the power amplifier module can be set to -20dBm.

[0099] S140, adjusting the adjustable optical attenuator in the wavelength division multiplexer module so that the optical power of each channel reaches the target value of the single-wavelength input optical power of the optical amplifier module.

[0100] S150: Based on the single-wavelength input optical power target value of the optical amplifier module and the single-wavelength input optical power target value of the power amplifier module, perform intelligent adjustment in the sending direction and the receiving direction.

[0101] Among them, intelligent commissioning is divided into two processes: the sending direction and the receiving direction. The sending direction mainly commissions the optical path from the wavelength division multiplexer to the optical amplifier, and the receiving direction mainly commissions the input and output of the power amplifier. The commissioning of these two directions can be performed in parallel to improve the commissioning efficiency. When performing intelligent commissioning, the system will monitor the optical power of each key point in real time through the optical power monitoring module. When the detected actual power deviates from the target value, the system will automatically adjust the adjustable optical attenuator in the corresponding module until the preset target value is reached. For example, in the sending direction commissioning, if the actual input power of a channel is higher than the target value, the system will increase the attenuation value corresponding to the channel; otherwise, the attenuation value will be reduced.

[0102] Specifically, in this embodiment, refer to Figure 2-Figure 4 , Figure 2The figure shows the overall block diagram of the integrated wavelength division multiplexing device. The device adopts a bidirectional transmission architecture. In the sending direction, the user service signal (CHn_Rx) first enters the MUX module (i.e. wavelength division multiplexer module) for multiplexing, then passes through the DCF module (i.e. dispersion compensation module) for dispersion compensation, and then passes through the BA module (i.e. optical amplifier module) for optical amplification, and finally sends it out from the LINE_TX port. In the receiving direction, the optical signal enters from the LINE_RX port, passes through the PA module (power amplifier module) for power amplification, the TDC module for dispersion compensation, and finally is demultiplexed by the MUX module and output to the user port (CHn_Tx). The system also integrates functional modules such as OCM, OSC and OTDR to realize functions such as signal monitoring, system management and fault diagnosis.

[0103] Reference Figure 3 The MUX module adopts a double-layer design, with the upper layer being the VMUX module and the lower layer being the AWG module. The VMUX module is a 48-wavelength adjustable optical power multiplexer, and each input channel (CHn_Rx) is equipped with an independent VOA adjustable optical attenuator. The power balance of each channel can be achieved by adjusting the VOA. The AWG module is a 48-wavelength passive array waveguide grating, which is used for wavelength demultiplexing in the receiving direction, decomposing the multiplexed signal in the LINE_RX direction into independent wavelength channels (CHn_Tx) and outputting them to the user. This design ensures both the power adjustment flexibility in the sending direction and the stable demultiplexing in the receiving direction.

[0104] Reference Figure 4 The optical power monitoring module mainly includes two core components: a MEMS optical switch and a spectrum analyzer. The MEMS optical switch adopts a 1×4 structure design. The first, second, and third input terminals of the MEMS optical switch are respectively connected to the optical amplifier module input terminal (BA_IN), the optical amplifier module output terminal (BA_OUT), and the power amplifier module output terminal (PA_OUT), and are connected to the spectrum analyzer through the common terminal to form a complete monitoring link.

[0105] Furthermore, after the user connects the optical fiber to the device panel, the intelligent commissioning can be started by triggering the button on the device panel or through the network management system. According to the on-site situation, the user can choose to directly press the dedicated button on the device panel to start the commissioning, or trigger the commissioning process through the remote network management system with one click; the commissioning start operation process is simplified, and the remote commissioning capability is expanded through the access to the network management system, which significantly improves the flexibility and efficiency of equipment maintenance, allowing non-professionals to easily complete the commissioning operation.

[0106] In one embodiment, referring to Figure 5 , intelligent commissioning in the sending direction includes the following steps:

[0107] S510 , scanning the combined signal at the input end of the optical amplifier module through the optical power monitoring module to obtain the center frequency, optical power and number of channels of a single channel.

[0108] In this embodiment, the optical power monitoring module uses an integrated optical spectrum analyzer (OSA) to monitor the input optical signal in real time through a scanning technology.

[0109] Specifically, the optical power monitoring module first quickly scans the input combined wave signal, identifies the center frequency of each channel (such as 192.1THz, 192.2THz, etc.), measures the optical power value of each channel (such as -15dBm, -14.8dBm, etc.), and automatically counts the number of effective channels. For example, in a 48-wave system, the scanning results will display the specific parameters of each channel, including channel spacing (such as 100GHz), power uniformity (within ±0.5dB) and other characteristics.

[0110] S520: Calculate actual single-wavelength input optical power according to the splitting ratio and optical power at the input end of the optical amplifier module.

[0111] In this embodiment, the input end of the optical amplifier module adopts a splitting ratio of 80:20. It can be understood that the use of this splitting ratio is obtained by applying the device in different application scenarios, and different application scenarios may adopt different splitting ratios.

[0112] S530: Adjust the adjustable optical attenuator value of the wavelength division multiplexer based on the comparison result between the actual single-wavelength input optical power and the target value of the single-wavelength input optical power of the optical amplifier module.

[0113] When the actual value is greater than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is increased. When the actual value is less than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is decreased.

[0114] In this embodiment, the wavelength division multiplexer adopts an adjustable optical attenuator array structure, and each channel is configured with an independent adjustable optical attenuator.

[0115] Specifically, the system automatically adjusts the attenuation value of the corresponding channel by comparing the difference between the actual single-wave input optical power and the target value. For example, when the actual input optical power of a channel is -13dBm, which is 2dB higher than the target value, the system will increase the attenuation value of the channel by 2dB; conversely, when the actual input optical power is -17dBm, the system will reduce the attenuation value by 2dB. The adjustment process adopts an iterative method, and re-measurement and verification will be performed after each adjustment until the power of all channels reaches the target value within ±0.5dB. During the adjustment process, the system will monitor the adjustment speed and stability at the same time to ensure that power oscillation does not occur.

[0116] In one embodiment, referring to Figure 6 , the intelligent commissioning in the receiving direction includes the following steps:

[0117] S610: Obtain input optical power of an adjustable optical attenuator of a power amplifier module.

[0118] In this embodiment, an optical power monitoring unit is configured at the input end of the adjustable optical attenuator of the power amplifier module for real-time monitoring of the input optical power.

[0119] Specifically, the system collects the power value of the input optical signal through the optical power monitoring unit. The sampling time is 100ms. During this period, 1000 sampling points are obtained, and a stable power reading is obtained by averaging. For example, when the detected raw data fluctuates between -22.1dBm and -21.9dBm, the system will calculate the average value of about -22dBm as the effective input optical power value. This method can effectively reduce the impact of transient fluctuations and provide more reliable power data.

[0120] S620: Determine an initial attenuation value of the adjustable optical attenuator of the power amplifier module according to the input optical power of the adjustable optical attenuator.

[0121] In this embodiment, the system adopts different strategies to set the initial attenuation value according to the input optical power to ensure that the power amplifier works in the best state.

[0122] Specifically, when the input optical power of the adjustable optical attenuator is less than or equal to -20dBm, the attenuation value of the adjustable optical attenuator of the power amplifier module is set to 0, and a single-wave judgment is performed; when the input optical power of the adjustable optical attenuator is greater than -20dBm, a single-wave judgment is performed. During the setting process, the system will record the initial attenuation value as a reference for subsequent power adjustment. At the same time, the system will also monitor the temperature and response characteristics of the attenuator to ensure that it operates in a stable range. If an abnormal situation is detected, such as excessive temperature or abnormal response, the system will trigger a protection mechanism to adjust the working status or issue an alarm message in time.

[0123] In one embodiment, referring to Figure 7 , perform single wave judgment, including the following steps:

[0124] S710 , scanning the combined signal at the output end of the power amplifier module through the optical power monitoring module to obtain the number of channels N, where N is a positive integer.

[0125] In this embodiment, the optical power monitoring module is configured with a broadband scanning range and a high-resolution spectrum analysis function.

[0126] Specifically, when the system scans, it first quickly scans the full spectrum of the C band and identifies valid optical signals through the peak detection algorithm. For example, in a 48-wavelength DWDM system, the system will identify the center wavelength and peak power of each channel one by one, and determine the valid channel through the set 3dB bandwidth and signal-to-noise ratio threshold, and finally obtain the actual number of channels N.

[0127] S720: If the number of channels is less than 1, then the commissioning is terminated.

[0128] In this embodiment, the system is provided with a channel number determination logic. When the detected channel number is less than 1, it indicates that there is no valid service signal. At this time, the system will automatically terminate the commissioning process and trigger a corresponding status indication.

[0129] Specifically, if the scan result shows that the number of channels is 0, the system will display the "No Signal" status on the LED indicator on the device panel, and report the current status to the superior network management system through the management interface. Before terminating the commissioning, the system will save the current configuration parameters so that the commissioning process can be quickly started when the service is restored later.

[0130] S730: If the number of channels is greater than or equal to 1, the single-wavelength input optical power is calculated according to “single-wavelength input optical power = adjustable optical attenuator input optical power - 10*logN”.

[0131] In this embodiment, the system uses a logarithmic calculation method to process multi-channel power allocation, and calculates the single-wavelength input optical power by taking into account the influence of the number of channels N on the single-wavelength power.

[0132] Specifically, when the system detects that the number of channels N=32, if the measured input optical power of the adjustable optical attenuator is -5dBm, then substitute it into the formula for calculation: single-wave input optical power = -5-10×log(32)=-5-15.05=-20.05dBm. This calculation method takes into account the uniform distribution of power among multiple channels.

[0133] S740: Determine a final adjustable optical attenuator value of the power amplifier module based on the single-wavelength input optical power.

[0134] In this embodiment, the adjustable optical attenuator of the power amplifier module adopts digital control technology and sets the attenuation value using a segmented control strategy according to the calculated single-wave input optical power.

[0135] Specifically, when -21dBm≤single-wave input optical power≤-19dBm, the adjustable optical attenuator value is set to 0; when -19dBm<single-wave input optical power<0dBm, the adjustable optical attenuator setting value is calculated according to "adjustable optical attenuator value = 20-single-wave input optical power value". For example, when the calculated single-wave input optical power is -20dBm, since this value falls within the range of [-21dBm,-19dBm], the system sets the attenuator value to 0dB; when the single-wave input optical power is -10dBm, the system calculates by the formula: attenuation value = 20-(-10) = 30dB, and sets the attenuator to this value. During the setting process, the system verifies the setting effect through a feedback loop to ensure that the output power reaches the expected target. For example, after the setting is completed, the system will measure the output power again. If the deviation exceeds ±0.5dB, it will be fine-tuned until the requirement is met. The response time of the entire process is usually within 500ms, and power adjustment can be completed quickly.

[0136] In one embodiment, referring to Figure 8 In the process of performing intelligent debugging in the sending direction and the receiving direction, the method further includes the following steps:

[0137] S810 , controlling the polling switching of the MEMS optical switch to monitor the optical power of the optical amplifier module input end, the optical amplifier module output end, and the power amplifier module output end.

[0138] S820: When it is detected that the number of channels or the optical power at the input end of the optical amplifier module changes, intelligent adjustment of the sending direction is triggered.

[0139] S830: When it is detected that the number of channels or the optical power at the output end of the power amplifier module changes, intelligent adjustment of the receiving direction is triggered.

[0140] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0141] In a second aspect, the present application provides an intelligent debugging device for an integrated wavelength division multiplexing device. The intelligent debugging device for an integrated wavelength division multiplexing device of the present application is described below in conjunction with the intelligent debugging method for the integrated wavelength division multiplexing device mentioned above.

[0142] An intelligent debugging device integrated with a wavelength division multiplexing device, comprising:

[0143] A wavelength division multiplexer module, comprising a wavelength division multiplexer with an adjustable optical attenuator, wherein the adjustable optical attenuator is used to adjust the optical power of each channel;

[0144] An optical amplifier module is connected to an output end of the wavelength division multiplexer module;

[0145] Power amplifier module;

[0146] An optical power monitoring module comprises a MEMS optical switch and a spectrum analyzer, wherein the first, second and third input terminals of the MEMS optical switch are respectively connected to the optical amplifier module input terminal, the optical amplifier module output terminal and the power amplifier module output terminal, and the common terminal is connected to the spectrum analyzer;

[0147] Processor for:

[0148] Obtain the maximum output optical power, total number of channels M and gain of the optical amplifier module, where M is a positive integer;

[0149] According to the maximum output optical power of the optical amplifier module and the total number of channels M, the single-wavelength output optical power of the optical amplifier module is calculated according to the formula "single-wavelength output optical power = maximum output optical power - 10logM", and then the single-wavelength input optical power target value of the optical amplifier module is determined based on the gain of the optical amplifier module;

[0150] Determine the target value of the single-wave input optical power of the power amplifier module according to the transmission distance of the device;

[0151] By adjusting the adjustable optical attenuator in the wavelength division multiplexer module, the optical power of each channel reaches the target value of the single-wavelength input optical power of the optical amplifier module;

[0152] Based on the single-wavelength input optical power target value of the optical amplifier module and the single-wavelength input optical power target value of the power amplifier module, intelligent commissioning in the sending direction and the receiving direction is performed.

[0153] In one embodiment, the processor is further configured to:

[0154] In the intelligent commissioning of the sending direction:

[0155] Control the optical power monitoring module to scan the combined signal at the input end of the optical amplifier module to obtain the center frequency, optical power and number of channels of a single channel;

[0156] According to the splitting ratio and optical power at the input end of the optical amplifier module, the actual single-wavelength input optical power is calculated;

[0157] Based on the comparison result between the actual single-wavelength input optical power and the target value of the single-wavelength input optical power of the optical amplifier module, adjust the adjustable optical attenuator value of the wavelength division multiplexer:

[0158] When the actual value is greater than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is increased;

[0159] When the actual value is less than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is reduced.

[0160] In one embodiment, the processor is further configured to:

[0161] In the intelligent commissioning of the receiving direction:

[0162] Obtain the input optical power of the adjustable optical attenuator of the power amplifier module;

[0163] Determine the initial attenuation value of the power amplifier module based on the input optical power of the adjustable optical attenuator:

[0164] When the input optical power of the adjustable optical attenuator is less than or equal to -20dBm, the attenuation value of the adjustable optical attenuator of the power amplifier module is set to 0, and single-wave judgment is performed;

[0165] When the input optical power of the adjustable optical attenuator is greater than -20dBm, single-wavelength judgment is performed.

[0166] In one embodiment, the processor is further configured to:

[0167] When performing single-wave judgment:

[0168] Control the optical power monitoring module to scan the combined signal at the output end of the power amplifier module to obtain the number of channels N, where N is a positive integer;

[0169] If the number of channels is less than 1, the commissioning is terminated;

[0170] If the number of channels is greater than or equal to 1, the single-wavelength input optical power is calculated according to "single-wavelength input optical power = variable optical attenuator input optical power - 10*logN";

[0171] Based on the single-wavelength input optical power, determine the final adjustable optical attenuator value of the power amplifier module:

[0172] When -21dBm≤single-wave input optical power≤-19dBm, set the adjustable optical attenuator value to 0;

[0173] When -19dBm<single-wavelength input optical power<0dBm, the adjustable optical attenuator setting value is calculated according to "adjustable optical attenuator value = 20-single-wavelength input optical power value".

[0174] In one embodiment, the processor is further configured to:

[0175] During the intelligent commissioning of the sending and receiving directions:

[0176] Control the polling switching of the MEMS optical switch and monitor the optical power at the input end, output end and power amplifier module output end of the optical amplifier module;

[0177] When a change in the number of channels or optical power at the input of the optical amplifier module is detected, intelligent adjustment in the sending direction is triggered;

[0178] When a change in the number of channels or optical power at the output of the power amplifier module is detected, intelligent adjustment in the receiving direction is triggered.

[0179] In one embodiment, the processor is further configured to:

[0180] After the user connects the optical fiber to the device panel, start the intelligent commissioning in any of the following ways:

[0181] Trigger and start intelligent commissioning through the button on the device panel;

[0182] Trigger and start intelligent commissioning through the network management system.

[0183] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent debugging method for integrated wavelength division multiplexing equipment, characterized in that: An intelligent debugging device applied to an integrated wavelength division multiplexing device, the intelligent debugging device comprising: A wavelength division multiplexer module, comprising a wavelength division multiplexer with an adjustable optical attenuator, wherein the adjustable optical attenuator is used to adjust the optical power of each channel; An optical amplifier module connected to the output end of the wavelength division multiplexer module; Power amplifier module; An optical power monitoring module comprises a MEMS optical switch and a spectrum analyzer, wherein the first, second and third input terminals of the MEMS optical switch are respectively connected to the optical amplifier module input terminal, the optical amplifier module output terminal and the power amplifier module output terminal, and the common terminal is connected to the spectrum analyzer; The method comprises the following steps: Obtain the maximum output optical power, total number of channels M and gain of the optical amplifier module, where M is a positive integer; According to the maximum output optical power of the optical amplifier module and the total number of channels M, the single-wavelength output optical power of the optical amplifier module is calculated according to the formula "single-wavelength output optical power = maximum output optical power - 10logM", and then the single-wavelength input optical power target value of the optical amplifier module is determined based on the gain of the optical amplifier module; Determine the target value of the single-wave input optical power of the power amplifier module according to the transmission distance of the device; By adjusting the adjustable optical attenuator in the wavelength division multiplexer module, the optical power of each channel reaches the target value of the single-wavelength input optical power of the optical amplifier module; Based on the single-wavelength input optical power target value of the optical amplifier module and the single-wavelength input optical power target value of the power amplifier module, performing intelligent adjustment in the sending direction and the receiving direction; The intelligent debugging in the sending direction includes the following steps: Scan the combined signal at the input end of the optical amplifier module through the optical power monitoring module to obtain the center frequency, optical power and number of channels of a single channel; Calculating actual single-wavelength input optical power according to the splitting ratio at the input end of the optical amplifier module and the optical power; Based on the comparison result between the actual single-wavelength input optical power and the single-wavelength input optical power target value of the optical amplifier module, the adjustable optical attenuator value of the wavelength division multiplexer is adjusted: When the actual value is greater than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is increased; When the actual value is less than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is reduced; The intelligent commissioning in the receiving direction includes the following steps: Obtain the input optical power of the adjustable optical attenuator of the power amplifier module; Determine the initial attenuation value of the adjustable optical attenuator of the power amplifier module according to the adjustable optical attenuator input optical power: When the input optical power of the adjustable optical attenuator is less than or equal to -20dBm, the attenuation value of the adjustable optical attenuator of the power amplifier module is set to 0, and single-wave judgment is performed; When the input optical power of the adjustable optical attenuator is greater than -20dBm, single-wavelength judgment is performed.

2. The intelligent debugging method of integrated wavelength division multiplexing equipment according to claim 1, characterized in that: Executing single-wave judgment includes the following steps: Scan the combined signal at the output end of the power amplifier module through the optical power monitoring module to obtain the number of channels N, where N is a positive integer; If the number of channels is less than 1, the commissioning is terminated; If the number of channels is greater than or equal to 1, the single-wavelength input optical power is calculated according to "single-wavelength input optical power = adjustable optical attenuator input optical power - 10*logN"; Based on the single-wavelength input optical power, the final adjustable optical attenuator value of the power amplifier module is determined: When -21dBm≤single-wave input optical power≤-19dBm, set the adjustable optical attenuator value to 0; When -19dBm<single-wavelength input optical power<0dBm, the adjustable optical attenuator setting value is calculated according to "adjustable optical attenuator value = 20-single-wavelength input optical power value".

3. The intelligent debugging method of integrated wavelength division multiplexing equipment according to claim 1, characterized in that: In the process of performing intelligent debugging in the sending direction and the receiving direction, the method further includes the following steps: Controlling the polling switching of the MEMS optical switch to monitor the optical power of the optical amplifier module input end, the optical amplifier module output end and the power amplifier module output end; When a change in the number of channels or optical power at the input of the optical amplifier module is detected, intelligent adjustment in the sending direction is triggered; When a change in the number of channels or optical power at the output of the power amplifier module is detected, intelligent adjustment in the receiving direction is triggered.

4. The intelligent debugging method of integrated wavelength division multiplexing equipment according to claim 1, characterized in that: The method further comprises the steps of: After the user connects the optical fiber to the device panel, start the intelligent commissioning in any of the following ways: Trigger and start intelligent commissioning through the button on the device panel; Trigger and start intelligent commissioning through the network management system.

5. An intelligent debugging device integrated with a wavelength division multiplexing device, characterized in that: include: A wavelength division multiplexer module, comprising a wavelength division multiplexer with an adjustable optical attenuator, wherein the adjustable optical attenuator is used to adjust the optical power of each channel; An optical amplifier module connected to the output end of the wavelength division multiplexer module; Power amplifier module; An optical power monitoring module comprises a MEMS optical switch and a spectrum analyzer, wherein the first, second and third input terminals of the MEMS optical switch are respectively connected to the optical amplifier module input terminal, the optical amplifier module output terminal and the power amplifier module output terminal, and the common terminal is connected to the spectrum analyzer; Processor for: Obtain the maximum output optical power, total number of channels M and gain of the optical amplifier module, where M is a positive integer; According to the maximum output optical power of the optical amplifier module and the total number of channels M, the single-wavelength output optical power of the optical amplifier module is calculated according to the formula "single-wavelength output optical power = maximum output optical power - 10logM", and then the single-wavelength input optical power target value of the optical amplifier module is determined based on the gain of the optical amplifier module; Determine the target value of the single-wave input optical power of the power amplifier module according to the transmission distance of the device; By adjusting the adjustable optical attenuator in the wavelength division multiplexer module, the optical power of each channel reaches the target value of the single-wavelength input optical power of the optical amplifier module; Based on the single-wavelength input optical power target value of the optical amplifier module and the single-wavelength input optical power target value of the power amplifier module, performing intelligent adjustment in the sending direction and the receiving direction; In the intelligent commissioning of the sending direction: Control the optical power monitoring module to scan the combined signal at the input end of the optical amplifier module to obtain the center frequency, optical power and number of channels of a single channel; Calculating actual single-wavelength input optical power according to the splitting ratio at the input end of the optical amplifier module and the optical power; Based on the comparison result between the actual single-wavelength input optical power and the single-wavelength input optical power target value of the optical amplifier module, the adjustable optical attenuator value of the wavelength division multiplexer is adjusted: When the actual value is greater than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is increased; When the actual value is less than the target value, the adjustable optical attenuator value of the corresponding channel wavelength division multiplexer is reduced; In the intelligent commissioning of the receiving direction: Obtain the input optical power of the adjustable optical attenuator of the power amplifier module; Determine the initial attenuation value of the adjustable optical attenuator of the power amplifier module according to the adjustable optical attenuator input optical power: When the input optical power of the adjustable optical attenuator is less than or equal to -20dBm, the attenuation value of the adjustable optical attenuator of the power amplifier module is set to 0, and single-wave judgment is performed; When the input optical power of the adjustable optical attenuator is greater than -20dBm, single-wavelength judgment is performed.

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