CN115603804A - Filter shape detection method, system, electronic device and storage medium - Google Patents

Abstract

This application relates to the field of optical communication technology, and discloses a filter shape detection method, system, electronic equipment and storage medium, wherein the filter shape detection method includes: determining the frequency of several different frequencies provided by the integrated tunable laser ITLA The signal is a detection signal; the actual power of the detection signal at different frequencies when it is received after being transmitted through the target path is obtained, wherein the target path is an optical transmission network channel that needs to detect the shape of the channel filter; determine according to the actual power The shape of the channel filter for the target path. The detection of the shape of the filter in the optical transmission network is realized, so that the estimation of the filter damage of the channel filter can be realized according to the obtained filter shape.

Description

Filter shape detection method, system, electronic device and storage medium

technical field

The embodiments of the present application relate to the field of optical communication technologies, and in particular, to a filter shape detection method, system, electronic device, and storage medium.

Background technique

In 100G and beyond 100G optical transmission networks, with the increase of service signal transmission rate and the decrease of bandwidth in the end-to-end transmission process of service signals, the filtering damage of high-frequency components of service signals by channel filters has gradually become a limitation of system capacity. and the main factor of transmission distance. At the same time, the future Dense Wavelength Division Multiplexing (DWDM) system will evolve towards high dimensions, high flexibility and intelligence. At this time, the entire system will be configured with more reconfigurable optical add-drop multiplexing. Reconfigurable Optical Add-Drop Multiplexer (ROADM) sites are used to improve the crossover networking capability of the entire optical network, but the limitation of filtering damage will greatly reduce the service pass-through performance, which in turn will affect the service transmission performance and reduce the network networking capability. Therefore, how to evaluate the filter impairment of the channel filter is one of the keys to evaluate the optical transmission network, and the evaluation of the filter impairment of the channel filter is usually based on the shape of the channel filter, that is, to obtain the channel filter The shape of the filter is the key to assessing the filtering impairment of the channel filter.

However, the channel of the optical transmission network usually has multiple filters cascaded, where the system formed by cascading multiple filters is a channel filter, and because multiple filters are cascaded, it is difficult to The individual filters directly determine the shape. Therefore, there is an urgent need to provide a method to detect the shape of a filter in an optical transmission network.

Contents of the invention

The main purpose of the embodiment of the present application is to propose a filter shape detection method, system, electronic equipment and storage medium, aiming to realize the detection of the filter shape in the optical transmission network, so as to realize the detection according to the obtained filter shape Estimation of filtering impairments for channel filters.

In order to achieve the above purpose, the embodiment of the present application provides a detection method of filter shape, the method includes the following steps: determine the signals of several different frequencies provided by the integrated tunable laser ITLA as detection signals; obtain the signals of different frequencies detecting the actual power when the signal is received after being transmitted through the target path, wherein the target path is an optical transport network channel for which the shape of the channel filter needs to be detected; and determining the shape of the channel filter of the target path according to the actual power.

In order to achieve the above purpose, the embodiment of the present application also proposes a filter shape detection system, including: a first determination module, which is used to determine several signals of different frequencies provided by the integrated tunable laser ITLA as detection signals; an acquisition module, used to obtain the actual power when the detection signals of different frequencies are received after being transmitted through a target path, wherein the target path is an optical transmission network channel that needs to detect the shape of a filter; the second determination module is configured to The actual power determines the shape of the channel filter of the target path.

In order to achieve the above purpose, an embodiment of the present application also proposes an electronic device, the device includes: at least one processor; and a memory connected to the at least one processor in communication; wherein, the memory stores information that can be Instructions executed by the at least one processor, the instructions are executed by the at least one processor, so that the at least one processor can execute the filter shape detection method as described above.

In order to achieve the above object, the embodiment of the present application further provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above filter shape detection method is implemented.

The filter shape detection method proposed in this application uses the optical signal emitted by the integrated tunable laser ITLA inside the line-side optical module as a detection signal, and transmits the detection signal in the optical transmission network channel that needs to detect the filter shape of the channel, and then Obtain the power detected when the detection signal passes through the transmission channel when it is received at the receiving end, and then obtain the channel filter power spectrum according to these powers, and this power spectrum can be used as the shape of the channel filter, thus realizing the optical transmission network. The detection of the filter shape further enables the estimation of the filtering impairment of the channel filter based on the obtained filter shape. In addition, the signal provided by ITLA is a narrow pulse signal. Therefore, the bandwidth of the detection signal is small and the frequency is relatively concentrated. The frequency difference between them is small, more detection signals are sent in a certain frequency range, and the actual power data used to determine the shape of the channel filter is large, and the filter shape obtained according to the actual power can refer to more data, which improves the accuracy. performance and reliability, and the whole method only needs to use the existing structure or equipment of the optical transport network, without adding other equipment or increasing the cost.

Description of drawings

One or more embodiments are exemplified by pictures in the accompanying drawings, and these exemplifications are not intended to limit the embodiments.

Figure 1 is a schematic diagram of the configuration when the DWDM system includes multiple ROADM sites;

Fig. 2 is the flowchart of the detection method of filter shape in the embodiment of the present invention;

Fig. 3 is the flow chart of the detection method of the filter shape that comprises closing the signal modulation function of the optical module where ITLA is located and/or locking the power step of the optical module where ITLA is sent a signal in another embodiment of the present invention;

Fig. 4 is the power spectrum at different frequencies of ITLA after the optical module involved in the embodiment of the present invention turns off the modulation signal;

5 is a flow chart of a detection method including a filter shape step of judging whether to detect a channel filter shape in another embodiment of the present invention;

6 is a flow chart of a detection method including the step of judging multiple transmissions of detection signals of different frequencies in another embodiment of the present invention;

7-9 are schematic diagrams of the shape of the channel filter obtained by different scan times involved in the embodiment of the present invention;

Fig. 10 is a schematic structural diagram of a filter shape detection system in another embodiment of the present invention;

Fig. 11 is a schematic structural diagram of an electronic device in another embodiment of the present invention.

detailed description

It can be seen from the background art that in an optical transmission network, how to evaluate the filtering impairment of the channel filter is the key, and determining the shape of the channel filter is the key to estimating the filtering impairment. As shown in Figure 1, the DWDM system includes a control layer and a transport layer. In the control layer, there are several core units used to realize the intelligent management and control of the DWDM system - Software Defined Network (SoftwareDefined Network, SDN)/automatic switching based on WDM/OTN The optical network (WDM/OTN Automatically Switched Optical Network, WASON) controller, the transmission layer is described by taking a single-fiber unidirectional DWDM system as an example, including optical transmitters 1~k, optical receivers 1~k, and multiple channels that the target path passes through. ROADM sites; also include DWDM equipment such as optical amplifiers and optical performance monitors, wherein each ROADM site contains multiple types of filters, and the optical transmitter k has two functions, one is to send ultra-wideband detection signals, and use to detect the filtering characteristics of the target path; the second is to send the 100G/B100G service signal required by the customer when the network is in normal operation. That is to say, the network structure of the DWDM system is complex, and there are various types of filters in the network. The system formed by cascading multiple filters is used as a channel filter. Due to the cascading of multiple filters, it is difficult to directly determine the shape according to the filters participating in the cascading. Therefore, it is urgent to propose a detection optical transmission network Method for filter shape in .

In order to solve the above problems, the embodiment of the present application provides a filter shape detection method, the method includes the following steps: determine a number of different frequency signals provided by the integrated tunable laser ITLA as detection signals; obtain the different frequency signals detecting the actual power when the signal is received after being transmitted through the target path, wherein the target path is an optical transport network channel for which the shape of the channel filter needs to be detected; and determining the shape of the channel filter of the target path according to the actual power.

The filter shape detection method proposed in this application uses the optical signal emitted by the integrated tunable laser ITLA inside the line-side optical module as a detection signal, and transmits the detection signal in the optical transmission network channel that needs to detect the filter shape of the channel, and then Obtain the power detected when the detection signal passes through the transmission channel when it is received at the receiving end, and then obtain the channel filter power spectrum according to these powers, and this power spectrum can be used as the shape of the channel filter, thus realizing the optical transmission network. The detection of the filter shape further enables the estimation of the filtering impairment of the channel filter based on the obtained filter shape. In addition, the signal provided by ITLA is a narrow pulse signal. Therefore, the bandwidth of the detection signal is small and the frequency is relatively concentrated. The frequency difference is small, and there are more detection signals sent in a certain frequency range, and the actual power data used to determine the shape of the channel filter is large, and the filter shape obtained according to the actual power can refer to more data, which improves the accuracy and reliability, and the whole method only needs to use the existing structure or equipment of the optical transport network, without adding other equipment or cost.

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that in each embodiment of the application, many technical details are provided for readers to better understand the application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can also be realized. The division of the following embodiments is for the convenience of description, and should not constitute any limitation to the specific implementation of the present application, and the embodiments can be combined and referred to each other on the premise of no contradiction.

The implementation details of the filtering characteristic detection method of this embodiment will be described in detail below with reference to FIG. 2-FIG.

With reference to Fig. 2, in some embodiments, the detection method of filter shape comprises the following steps:

Step 101, determining signals of several different frequencies provided by the integrated tunable laser ITLA as detection signals.

Specifically, in this embodiment, an integrated tunable laser (ITLA, Integrable Tunable Laser Assembly) is used to send a plurality of narrow pulse signals with different frequencies as the detection signal, and the detection signal is transmitted in the optical transmission network channel that needs to be detected, so as to realize the detection of the channel detection.

It is worth mentioning that since the signal provided by ITLA is a narrow pulse signal, the bandwidth of the detection signal is small and the frequency is relatively concentrated. The output power of the optical module is mainly concentrated on a single frequency, and the obtained frequency corresponds to the received power more accurately. , and then the obtained spectrogram will be more accurate, the frequency difference between different detection signals is small, more detection signals are sent in a certain frequency range, and the actual power data used to determine the shape of the channel filter is large, and then according to the actual power The resulting filter shape can be referenced to more data, improving accuracy and reliability.

More specifically, referring to the DWDM system shown in Figure 1, the controller sends control commands to ITLA multiple times. After receiving the control commands, ITLA sends narrow pulse signals of corresponding frequencies according to the information indicating the signal frequency carried in the control commands.

It is worth mentioning that the detection is realized by using the control command issued by the controller without on-site optical fiber insertion and removal operations. The whole method only needs to use the existing structure or equipment of the optical transmission network, and does not need to add other equipment or increase costs. , you can obtain the shape of the channel filter online, thereby reducing the risk of new business or capacity expansion, and reducing the cost of after-sales operation and maintenance.

It should be noted that the frequency of the detection signal sent by the ITLA is determined by the controller, and this embodiment does not limit the frequency of the detection signal and the number of detection signals. And each time the detection signal is sent, it can be carried out after the frequency of ITLA is stable, so as to ensure the stability of the signal and avoid the instability of the signal received by the receiving end due to the instability of the sent signal.

In some other embodiments, the frequency of the detection signal is located in the interval [f1-BW/2, f1+BW/2], where f1 is the center frequency of the optical transport network channel to be detected, and BW is the light to be detected The bandwidth of the transport network channel. Furthermore, the detection signal is detected in the frequency supported by the optical transmission network channel, and the frequency range other than the frequency supported by the optical transmission network channel is not detected, which can not only perform comprehensive detection, avoid partial data loss, but also reduce unnecessary detection and avoid Waste of resources.

It can be understood that the bandwidth of the OTN channel to be detected can be represented by the channel spacing of the DWDM system where it is located.

Further, in some embodiments, the frequency of the detection signal can be specifically determined by the following expression:

f=f1-BW/2+N*Δf or f=f1+BW/2-N*Δf

Among them, f is the frequency of the detection signal, Δf is the preset frequency adjustment step size, f1 is the center frequency of the optical transport network channel to be detected, BW is the bandwidth of the optical transport network channel to be detected, N={1,2 ,..., k}, k=[BW/Δf]. In particular, the preset frequency adjustment step can be set according to the accuracy of the detection result when detecting the filter shape. For example, according to the filter shape detection accuracy requirements, the ITLA frequency adjustment step is set to 100MHz, and the channel with a bandwidth of 50GHz 500 power points can be collected to meet the accuracy requirements of filter shape detection.

In one example, take Δf as the adjustment step size, start from f1-BW/2, increase the frequency sequentially, and stop after the kth adjustment, where k satisfies f1-BW/2+(k+1)*Δf >f1+BW/2, that is, after each adjustment to determine the frequency of the detection signal, first check whether the frequency after the next adjustment exceeds f1+BW/2, and continue to determine the frequency of the detection signal only if it does not exceed f1+BW/2.

In one example, take Δf as the adjustment step, start from f1+BW/2, and decrease the frequency successively until the kth adjustment stops, where k satisfies f1+BW/2-(k+1)*Δf <f1-BW/2, that is, after each adjustment to determine the frequency of the detection signal, first check whether the frequency after the next adjustment exceeds f1-BW/2, and continue to determine the frequency of the detection signal only if it does not exceed f1-BW/2.

It should be noted that from the above description of the frequency of the detection signal, it can be seen that in some embodiments, the above step 101 actually implies a step of determining the frequency of the detection signal.

It should also be noted that the detection of the shape of the channel filter of the optical transport network channel is generally performed when the optical transport network is newly built or expanded. Rate and corresponding modulation pattern, each channel transmits a wavelength λ, and each end of the channel corresponds to an optical module configured with a wavelength of λ. Of course, in other embodiments, if the optical transport network has a detection requirement in a non-new construction and non-capacity expansion scenario, the shape of the channel filter may also be detected.

In one example, when the service is newly built or expanded, the DWDM system is newly built or expanded to support 100G Quadrature Phase Shift Keying (Quadrature Phase Shift Keying, QPSK) (200G 8 Quadrature Amplitude Modulation (Quadrature Amplitude Modulation, QAM)/200G QPSK) business, the channel spacing of the system is 50GHz (62.5GHz/75GHz), and the wavelength λ=192.1THz of the signal sent by the channel, then the 192.1THz service channel optical module needs to be configured as 100G QPSK (200G 8QAM/200G QPSK) mode, the central wavelength of the optical module is configured as 192.1THz, and the service optical module is an optical module that plays the role of transmitting content information.

Further, in order to improve the detection signal transmission effect, the relevant settings of the optical module are also changed. Referring to FIG. 3, before step 101, it also includes:

Step 104, turn off the signal modulation function of the optical module where the ITLA is located and/or lock the power of the signal sent by the optical module where the ITLA is located.

Specifically, in this embodiment, the controller issues a control command, and the optical module turns off its own signal modulation function according to the received control command, so that the signal modulation will not be performed when the detection signal is sent, but the simple narrow channel provided by ITLA The pulse signal, and/or, the optical module locks the power of the signal it sends out according to the received control command, so that the narrow pulse signals provided by the ITLA all have the same power.

It is worth mentioning that if the bandwidth of the detection signal increases, in order to avoid the frequency overlap between the detection signals, the number of detection signals will be reduced, and the actual power data obtained will be reduced, which will affect the amount of data available when the final filter shape is determined. This further affects the accuracy and reliability of the filter shape, and turning off the signal modulation function prevents the detection signal from being modulated and resulting in an increase in the bandwidth of the transmitted signal. And locking the power is to ensure that the power of the detection signal sent by the ITLA in the optical module is consistent, so as to ensure that only the frequency is the variable in the detection process, realize the control variable, and avoid the interference of the detection result caused by the inconsistent power of the sending end during the detection process, and finally make the obtained The filter shape is more accurate. Specifically, referring to FIG. 4, FIG. 4 shows the power spectrum at different frequencies of the ITLA after the optical module turns off the modulation signal. It can be seen that there are more power data collected within a certain range, that is, more reference data.

Further, in some cases, the user may not have the need to detect the shape of the channel filter, and it is also necessary to select whether to perform detection according to the demand. Specifically, referring to FIG. 5 , in some embodiments, the following steps are also included before step 101 :

Step 105 , judging whether the optical transport network channel needs to detect the shape of the channel filter according to actual requirements, if yes, perform step 106 , if not, perform step 107 .

Step 106, determine the OTN channel as the target path.

Specifically, determining the target path means to detect the shape of the filter, that is, step 101 needs to be performed next.

Step 107, normally configure the optical module corresponding to the optical transport network channel and enter the service signal transmission mode.

Specifically, the configuration of the optical module is completed according to the existing technology, which will not be described here one by one. Then the optical module and the channel can perform normal business data transmission and reception, that is, enter the business signal transmission mode. At this time, no Turning off the signal modulation function of the optical module generally does not lock the frequency of the signal.

Step 102, acquiring the actual power when the detection signals of different frequencies are transmitted through the target path and received.

Specifically, in this embodiment, the target path is an optical transmission network channel that needs to detect the shape of the channel filter, and the actual power when it is received is obtained, that is, the detection signal is sent from one end of the target path and received at the other end, and detected from the The power of the signal received by the receiver.

More specifically, there are optical modules at both ends of the target path, the side that sends the signal uses ITLA to provide the signal to send, the other side receives the signal, and the other side detects the power of the received signal every time it receives a signal and Report the detected power to the controller for storage and use by the controller.

It should be noted that the actual power detected by the optical module at the receiving end should be the actual power detected after the uploaded and received signal is stable, so as to avoid detecting an actual power with a large error when the signal is unstable, which will affect the final filter Determination of shape.

It should also be noted that if the controller stores the reported power value, in order to facilitate subsequent use, it is also necessary to store the frequency of the detection signal corresponding to the power value, or map the frequency of the detection signal corresponding to the power value to the power value .

When considering the shape of the online detection channel filter, the fluctuation of the DWDM system will affect the accuracy of the channel filter shape detection, therefore, it is necessary to perform multiple transmissions of detection signals of different frequencies. With reference to Figure 6, in some embodiments, step 102 is : Obtain the actual power of the detection signals of different frequencies transmitted through the target path for a preset number of times M, and obtain M power sets.

Specifically, a power set in this embodiment represents a set of actual powers obtained by sequentially transmitting the detection signals of different frequencies once through the target path. That is to say, assuming that the frequency of the probe signal includes {F1, F2, ..., Fk}, the probe signals of different frequencies are transmitted in the target path by traversing the frequencies in {F1, F2, ..., Fk}, and each traversal One scan is called one scan completed, and each time a scan is completed, it is detected whether the number of scans reaches the preset number M, until M scans are completed. And each scan will obtain a set including k actual powers, which is the above-mentioned power set.

In one example, when performing the jth scan, where j represents the current number of scans, j=1, 2, ..., M; the variable N is set as a counter for controlling the number of adjustments of the ITLA frequency, the jth After the second scan starts, first set the ITLA laser frequency to f1-BW/2+n*Δf, where f1 is the center frequency of channel λk, BW is the channel bandwidth of channel λk, and the number of ITLA frequency adjustments when the jth scan starts n=0, after every ITLA frequency adjustment, n=n+1, until the whole channel scan is completed. Every time when the receiving end optical module of the target path detects that the power is stable, the power detected by the receiving end optical module is reported to the controller, and the controller stores the power value in the result memory of the nth frequency point of the jth scan , corresponding to the memory position coordinates (n, j), and then wait for the controller to generate an ITLA frequency adjustment command, which can adjust the ITLA frequency to f=f1-BW/2+(n+1)*Δf, and do not send the command temporarily Perform frequency adjustment for ITLA, first judge whether the frequency f exceeds f1+BW/2, when the ITLA frequency exceeds f1+BW/2, it is considered that a round of scanning is completed, and then judge whether the specified number of scans is completed; when the ITLA frequency is not When f1+BW/2 is exceeded, perform n=n+1 operation on n, and then return to execute f1-BW/2+n*Δf to send detection signals and report the power detected by the optical module at the receiving end to the controller, and control The device stores the power value in the result memory of the nth frequency point of the jth scan, corresponding to the step of the memory location coordinate (n, j). And when the judgment result is to complete the specified number of scans, the result of the detection is the above M power sets. Assuming that 10 scans are performed, the obtained power sets can be stored in the controller register in the structure shown in the following table:

Among them, j represents the number of scans, that is, each column of data is the result of one scan, and n represents different frequencies.

Step 103, determine the shape of the channel filter of the target path according to the actual power.

The scanned power spectrum is affected by system fluctuations,

Specifically, in this embodiment, each detection signal will obtain an actual power, and a plurality of detection signals with different powers will obtain a set of actual powers. According to this set of actual powers, a power spectrum can be roughly obtained, and the power spectrum is a filter A representation of the shape that is considered to determine the shape of the channel filter.

It should be noted that after obtaining the power spectrum, further obtaining several bandwidths under X-dB according to the data of the power spectrum, such as obtaining 1dB bandwidth, 3dB bandwidth, 6dB bandwidth and 10dB bandwidth, is also the result of a channel filter shape representation of .

Further, when considering the online detection of the shape of the channel filter, the fluctuation of the DWDM system will affect the detection accuracy of the channel filter shape. Therefore, it is necessary to transmit detection signals of different frequencies multiple times, that is, step 102 is: obtain detection signals of different frequencies When the signal transmits the actual power of the preset number of times M through the target path, and when M power sets are obtained, referring to FIG. 6, step 103 specifically includes the following steps:

Step 108, perform translation on each power set to obtain M power spectra.

Specifically, in this embodiment, the power corresponding to the center frequency of each power spectrum is 0 dB as the translation target, and the power set is translated. Among them, the power spectrum is obtained by arranging the frequency of the detection signal corresponding to the power in each power set, and if the data in the power spectrum is further plotted on the coordinate axis, it is a spectrogram.

Step 109, smoothing the M power spectra to obtain the actual power spectrum as a result of the filter shape.

Specifically, in this embodiment, M powers with the same frequency are averaged, that is, smoothing is performed.

It is worth mentioning that referring to Figure 7-9, Figure 7 shows the shape of the channel filter after a single scan; Figure 8 shows the shape of the channel filter after 5 scans, and Figure 9 shows the shape of the channel filter after 10 scans The shape of the channel filter. The channel filter power spectrum detected in Fig. 7 has close to 2dB fluctuation, the channel filter power spectrum detected in Fig. 8 has close to 1dB fluctuation, and the channel filter power spectrum detected in Fig. 9 has close to 0.3dB fluctuation; It is not difficult to see that although system fluctuations have an impact on the detection results of the filter shape, increasing the number of scans and smoothing steps will reduce the impact of such system fluctuations, making the results more accurate.

In addition, it should be understood that the division of steps in the above methods is only for clarity of description, and may be combined into one step or split into multiple steps during implementation. As long as the same logical relationship is included, all Within the scope of protection of this patent; adding insignificant modifications or introducing insignificant designs to the algorithm or process, but not changing the core design of the algorithm and process are all within the scope of protection of the patent.

The embodiment of the present invention also provides a filter shape detection system, referring to FIG. 10 , including:

The first determining module 1001 is configured to determine signals of several different frequencies provided by the integrated tunable laser ITLA as detection signals;

The acquisition module 1002 is configured to acquire the actual power when the detection signals of different frequencies are transmitted through the target path and then received, where the target path is an optical transmission network channel that needs to detect the shape of the filter;

The second determination module 1003 is configured to determine the shape of the channel filter of the target path according to the actual power.

It is not difficult to find that this embodiment is a system embodiment corresponding to the embodiment of the filter shape detection method, and this embodiment can be implemented in cooperation with the embodiment of the filter shape detection method. The relevant technical details mentioned in the embodiment of the method for detecting the filter shape are still valid in this embodiment, and will not be repeated here in order to reduce repetition. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the embodiment of the filter shape detection method.

It is worth mentioning that all the modules involved in this embodiment are logical modules. In practical applications, a logical unit can be a physical unit, or a part of a physical unit, or multiple physical units. Combination of units. In addition, in order to highlight the innovative part of the present invention, units that are not closely related to solving the technical problem proposed by the present invention are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.

An embodiment of the present application is also an electronic device, as shown in FIG. 11 , including: at least one processor 1101; and a memory 1102 communicatively connected to at least one processor 1101; Instructions executed by the processor 1101, the instructions are executed by at least one processor 1101, so that at least one processor 1101 can execute the filter shape detection method described in any one of the above method embodiments.

Wherein, the memory 1102 and the processor 1101 are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors 1101 and various circuits of the memory 1102 together. The bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and the transceivers. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium. The data processed by the processor 1101 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 1101 .

The processor 1101 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management and other control functions. And the memory 1102 may be used to store data used by the processor 1101 when performing operations.

Embodiments of the present invention also provide a computer-readable storage medium storing a computer program. When the computer program is executed by the processor, the embodiment of the above filter shape detection method is realized.

That is, those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, the program is stored in a storage medium, and includes several instructions to make a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in practical applications, various changes can be made to it in form and details without departing from the spirit and spirit of the present application. scope.

Claims (10)

1. A detection method of filter shape, is characterized in that, comprises: Determine the signals of several different frequencies provided by the integrated tunable laser ITLA as detection signals; Acquiring the actual power when the detection signals of different frequencies are received after being transmitted through a target path, wherein the target path is an optical transmission network channel that needs to detect the shape of a channel filter; The shape of the channel filter of the target path is determined according to the actual power. 2. the detection method of filter shape according to claim 1, is characterized in that, before the signal of some different frequencies that described determination integrated tunable laser ITLA provides is detection signal, described method also comprises: Turn off the signal modulation function of the optical module where the ITLA is located and/or lock the power of the signal sent by the optical module where the ITLA is located. 3. The detection method of the filter shape according to claim 2, characterized in that, before the signal modulation function of the optical module where the ITLA is closed and/or locking the power of the optical module where the ITLA is sent, the The method also includes: judging whether the optical transport network channel needs to detect the shape of the channel filter according to actual requirements; If yes, determine that the OTN channel is the target path; If not, normally configure the optical module corresponding to the optical transport network channel and enter a service signal transmission mode. 4. The detection method of the filter shape according to any one of claims 1-3, wherein the frequencies of the detection signals are all located in the interval [f1-BW/2, f1+BW/2], wherein , f1 is the center frequency of the target path, and BW is the bandwidth of the target path. 5. the detection method of filter shape according to claim 4, is characterized in that, the frequency of described detection signal is determined by following expression: f=f1-BW/2+N*Δf or f=f1+BW/2-N*Δf Wherein, f is the frequency of the detection signal, Δf is a preset frequency adjustment step size, N={1, 2, . . . , k}, k=[BW/Δf]. 6. the detection method of filter shape according to claim 1, is characterized in that, the actual power when the described probe signal of described acquisition different frequency is transmitted via target path after being received, comprises: Acquiring the actual power of the detection signals of different frequencies transmitted a preset number of times M via the target path to obtain M power sets, wherein one of the power sets is that the detection signals of different frequencies pass through the target in turn A set of the actual power obtained by one path transmission. 7. the detection method of filter shape according to claim 6, is characterized in that, described according to described actual power, determines the shape of the channel filter of described target path, comprises: Translating each of the power sets to obtain M power spectra, wherein the power of the center frequency of each of the power spectra is 0dB; The M said power spectra are smoothed to obtain the actual power spectrum as a result of said filter shape. 8. A detection system for a filter shape, comprising: The first determining module is used to determine signals of several different frequencies provided by the integrated tunable laser ITLA as detection signals; An acquisition module, configured to acquire the actual power when the detection signals of different frequencies are received after being transmitted through a target path, wherein the target path is an optical transmission network channel that needs to detect a filter shape; The second determination module is configured to determine the shape of the channel filter of the target path according to the actual power. 9. An electronic device, characterized in that it comprises: at least one processor; and, a memory communicatively coupled to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, the instructions are executed by the at least one processor, so that the at least one processor can perform the operation described in any one of claims 1 to 7 The detection method of the filter shape is described. 10. A computer-readable storage medium storing a computer program, characterized in that, when the computer program is executed by a processor, the filter shape detection method according to any one of claims 1 to 7 is implemented.

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