CN116760467A

CN116760467A - Optical signal transmission quality testing method and device, storage medium and electronic equipment

Info

Publication number: CN116760467A
Application number: CN202311065810.0A
Authority: CN
Inventors: 陈国耀; 陈明刚; 王帅; 王宇; 李方超
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2023-09-15
Anticipated expiration: 2043-08-23
Also published as: CN116760467B

Abstract

The application discloses a method and a device for testing optical signal transmission quality, a storage medium and electronic equipment. Wherein the method comprises the following steps: acquiring an original light wave to be tested, and disposing the original light wave on a first channel in a spectrum, wherein the spectrum comprises the first channel and at least one second channel; acquiring a simulated light wave configured for the original light wave, and deploying the simulated light wave to at least one second channel, wherein the simulated light wave is used for simulating the optical characteristics of the original light wave in the transmission process; performing superposition processing on light waves deployed on each channel in a spectrum to obtain a target light signal; and carrying out transmission performance test on the original light wave by utilizing the target light signal to obtain a target test result, and can be applied to cloud technology scenes. The application solves the technical problem of lower test accuracy of the optical signal.

Description

Optical signal transmission quality testing method and device, storage medium and electronic equipment

Technical Field

The present application relates to the field of computers, and in particular, to a method and apparatus for testing optical signal transmission quality, a storage medium, and an electronic device.

Background

In the test scene of the optical signal, the service wave is generally configured at the long, medium and short wave channel positions of the spectrum to test different wave channels of the optical signal, but the mode cannot test the performance condition of each wave on the whole spectrum, so that the problem of lower test accuracy of the optical signal occurs. Therefore, there is a problem in that the test accuracy of the optical signal is low.

In view of the above problems, no effective solution has been proposed at present.

Disclosure of Invention

The embodiment of the application provides a method and a device for testing optical signal transmission quality, a storage medium and electronic equipment, and aims to at least solve the technical problem of low optical signal testing accuracy.

According to an aspect of an embodiment of the present application, there is provided a method for testing optical signal transmission quality, including: acquiring an original light wave to be tested, and disposing the original light wave on a first channel in a spectrum, wherein the spectrum comprises the first channel and at least one second channel; obtaining a simulated light wave configured for the original light wave, and deploying the simulated light wave on the at least one second channel, wherein the simulated light wave is used for simulating the optical characteristics of the original light wave in the transmission process; performing superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal; and carrying out transmission performance test on the original light wave by using the target light signal to obtain a target test result, wherein the target test result is used for representing performance of the original light wave on each channel in the spectrum.

According to another aspect of the embodiment of the present application, there is also provided a device for testing optical signal transmission quality, including: the device comprises a first acquisition unit, a second acquisition unit and a first detection unit, wherein the first acquisition unit is used for acquiring an original light wave to be tested and disposing the original light wave on a first channel in a spectrum, and the spectrum comprises the first channel and at least one second channel; a second obtaining unit, configured to obtain a simulated light wave configured for the original light wave, and deploy the simulated light wave to the at least one second channel, where the simulated light wave is used to simulate an optical characteristic of the original light wave in a transmission process; the processing unit is used for carrying out superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal; and the testing unit is used for testing the transmission performance of the original light wave by using the target light signal to obtain a target testing result, wherein the target testing result is used for representing the performance of the original light wave on each channel in the spectrum.

As an alternative, the test unit includes: the first analysis module is used for transmitting the target optical signal to an optical spectrum analyzer, and analyzing the spectrum characteristic of the target optical signal by the optical spectrum analyzer to obtain a first test result, wherein the target test result comprises the first test result; the second analysis module is configured to adjust channels of the original light wave and the simulated light wave disposed in the spectrum in the target light signal, sequentially transmit the adjusted target light signal to the optical spectrum analyzer, and analyze the adjusted target light signal by the optical spectrum analyzer to obtain a second test result, where the target test result includes the second test result.

As an alternative, the second analysis module includes: the execution sub-module is used for executing the following steps until N second test results are obtained, wherein N is the number of channels in the spectrum: the channel of the original light wave arranged in the spectrum in the target light signal is adjusted to be a current first channel, wherein the current first channel is the channel of the original light wave arranged in the spectrum for the first time in the transmission process of the target light signal; the method comprises the steps of adjusting a channel of the simulated light wave arranged in the spectrum in the target light signal to a plurality of current second channels, wherein the current second channels are all other channels except the current first channel in the spectrum; transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current second test result; and under the condition that the number of the obtained second test results is smaller than N, determining the channel which is not deployed in the spectrum in the transmission process of the target optical signal by the original optical wave as the current first channel until the N second test results are obtained.

As an alternative, the second analysis module includes: and the third analysis module is used for transmitting the start-stop frequency point and the current adjusted target optical signal to the optical spectrum analyzer under the condition that the start-stop frequency point of the grid where the original optical wave is positioned in the target optical signal is acquired, and analyzing the original optical wave in the current adjusted target optical signal according to the start-stop frequency point by the optical spectrum analyzer to obtain the current second test result.

As an alternative, the second analysis module includes: the first analysis sub-module is used for transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current first test sub-result, wherein the current second test result comprises the current first test sub-result; and the second analysis sub-module is used for stopping transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the additional noise of the current adjusted target optical signal after stopping transmitting by the optical spectrum analyzer to obtain a current second test sub-result, wherein the current second test result comprises the current second test sub-result.

As an alternative, the first obtaining unit includes: the first filtering module is used for filtering and shaping the original light wave to obtain a shaped original light wave, wherein the wavelength of the shaped original light wave is equal to the wavelength corresponding to the first channel; the second acquisition unit includes: the second filtering module is used for obtaining the wide-spectrum light source, filtering and shaping the wide-spectrum light source to obtain a plurality of shaped wide-spectrum light sources, wherein the wavelength of each wide-spectrum light source in the plurality of shaped wide-spectrum light sources is equal to the wavelength corresponding to each second channel in the at least one second channel.

As an alternative, the apparatus further includes: a third obtaining unit, configured to obtain a signal test request before the original light wave to be tested is obtained, where the signal test request is used to request to test performance of the original light wave when the original light wave is transmitted between a first optical cross connection point and a second optical cross connection point; the access unit is used for responding to the signal test request before the original light wave to be tested is acquired, and accessing a coupler and a filter at a first optical cross connection point, wherein the coupler is used for carrying out superposition processing on the light waves deployed on each wave channel in the spectrum, and the filter is used for carrying out filtering shaping on the original light wave and the wide spectrum light source.

As an alternative, the test unit includes: a first measurement unit configured to measure a total optical power of the target optical signal; a blocking unit for blocking the signal light wave in the target optical signal by using an optical band-pass filter; a second measuring unit for measuring the noise optical power of the blocked target optical signal; and the calculating unit is used for obtaining the optical signal to noise ratio of the target optical signal by dividing the total optical power by the noise optical power, wherein the target test result comprises the optical signal to noise ratio, and the optical signal to noise ratio is an index for measuring the quality of the target optical signal.

According to yet another aspect of embodiments of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the test method of the optical signal transmission quality as above.

According to still another aspect of the embodiment of the present application, there is further provided an electronic device including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the above-mentioned optical signal transmission quality testing method through the computer program.

In the embodiment of the application, an original light wave to be tested is obtained, and the original light wave is deployed on a first channel in a spectrum, wherein the spectrum comprises the first channel and at least one second channel; obtaining a simulated light wave configured for the original light wave, and deploying the simulated light wave on the at least one second channel, wherein the simulated light wave is used for simulating the optical characteristics of the original light wave in the transmission process; performing superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal; and carrying out transmission performance test on the original light wave by using the target light signal to obtain a target test result, wherein the target test result is used for representing performance of the original light wave on each channel in the spectrum. The original light waves with high cost are only deployed on the first channel in the spectrum, and the simulated light waves with low cost are deployed on other second channels outside the spectrum where the first wave is processed, so that the aim of realizing the optical signal test of all the channels with low cost is fulfilled, the technical effect of improving the test accuracy of the optical signals is realized, and the technical problem of lower test accuracy of the optical signals is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic illustration of an application environment of an alternative optical signal transmission quality testing method according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a flow of an alternative method for testing optical signal transmission quality according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an alternative method of testing optical signal transmission quality in accordance with an embodiment of the present application;

FIG. 4 is a schematic diagram of another alternative method of testing optical signal transmission quality in accordance with an embodiment of the present application;

FIG. 5 is a schematic diagram of another alternative method of testing optical signal transmission quality in accordance with an embodiment of the present application;

fig. 6 is a schematic diagram of an alternative optical transport network system according to an embodiment of the present application;

FIG. 7 is a schematic diagram of test verification of an alternative optical signal in accordance with an embodiment of the application;

FIG. 8 is a schematic illustration of the optical characteristics of an alternative analog service wave during transmission according to an embodiment of the present application;

FIG. 9 is a schematic diagram of an alternative automatic traversal test for the transmission performance of full-spectrum bins, according to an embodiment of the application;

FIG. 10 is a schematic diagram of an alternative optical signal transmission quality testing apparatus according to an embodiment of the present application;

fig. 11 is a schematic structural view of an alternative electronic device according to an embodiment of the present application.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For ease of understanding, the following terms are explained:

cloud technology (Cloud technology) refers to a hosting technology for integrating hardware, software, network and other series resources in a wide area network or a local area network to realize calculation, storage, processing and sharing of data.

Cloud technology (Cloud technology) is based on the general terms of network technology, information technology, integration technology, management platform technology, application technology and the like applied by Cloud computing business models, and can form a resource pool, so that the Cloud computing business model is flexible and convenient as required. Cloud computing technology will become an important support. Background services of technical networking systems require a large amount of computing, storage resources, such as video websites, picture-like websites, and more portals. Along with the high development and application of the internet industry, each article possibly has an own identification mark in the future, the identification mark needs to be transmitted to a background system for logic processing, data with different levels can be processed separately, and various industry data needs strong system rear shield support and can be realized only through cloud computing.

According to an aspect of the embodiment of the present application, there is provided a method for testing optical signal transmission quality, optionally, as an optional implementation manner, the method for testing optical signal transmission quality may be applied, but not limited to, in an environment as shown in fig. 1. Which may include, but is not limited to, a user device 102 and a server 112, which may include, but is not limited to, a display 104, a processor 106, and a memory 108, the server 112 including a database 114 and a processing engine 116.

The specific process comprises the following steps:

step S102, user equipment 102 obtains a test request triggered by original light waves;

step S104-S106, send test request to server 112 through network 110;

step S108-S112, the server 112 deploys the original light waves to a first channel in the spectrum through the processing engine 116, deploys the simulated light waves to at least one second channel, and further carries out superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal, and carries out transmission performance test by using the target light signal to obtain a target test result;

in steps S114-S116, the target test result is sent to the user equipment 102 through the network 110, and the user equipment 102 displays the target test result on the display 104 through the processor 106, and stores the target test result in the memory 108.

In addition to the example shown in fig. 1, the above steps may be performed by the user device or the server independently, or by the user device and the server cooperatively, such as by the user device 102 performing the steps of S108-S112 described above, thereby relieving the processing pressure of the server 112. The user device 102 includes, but is not limited to, a handheld device (e.g., a mobile phone), a notebook computer, a tablet computer, a desktop computer, a vehicle-mounted device, a smart television, etc., and the application is not limited to a specific implementation of the user device 102. The server 112 may be a single server or a server cluster composed of a plurality of servers, or may be a cloud server.

Alternatively, as an alternative embodiment, as shown in fig. 2, the method for testing the transmission quality of an optical signal may be performed by an electronic device, such as a user device or a server shown in fig. 1, where the specific steps include:

s202, acquiring an original light wave to be tested, and disposing the original light wave on a first channel in a spectrum, wherein the spectrum comprises the first channel and at least one second channel;

s204, obtaining a simulation light wave configured for the original light wave, and deploying the simulation light wave to at least one second channel, wherein the simulation light wave is used for simulating the optical characteristics of the original light wave in the transmission process;

s206, performing superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal;

s208, performing transmission performance test on the original light wave by using the target light signal to obtain a target test result, wherein the target test result is used for representing performance of the original light wave on each channel in the spectrum.

Alternatively, in this embodiment, the above-mentioned method for testing the transmission quality of an Optical Signal may be, but not limited to, applied to testing a Ratio (OSNR) between an Optical Signal and Optical Noise, where OSNR is an important parameter for measuring the quality of a Signal in an Optical fiber communication system, and for evaluating the clarity and reliability of a Signal in an Optical transmission link. Specifically, after a transmission system is built, a full channel is opened, transmission performance test is carried out, spectrum information is scanned through OSA at a receiving end, and OSNR is calculated. The service wave (original light wave) is configured in a key channel (first channel) of the spectrum for testing, and other channels of the spectrum are configured with spurious waves (simulated light waves) corresponding to the service wave for testing, so that the full-channel OSNR performance of the optical signal after the optical signal passes through the transmission system is further obtained.

Alternatively, in this embodiment, spectrum refers to a process of decomposing and exhibiting an optical signal at different frequencies or wavelengths. In optical communications, optical signals are typically composed of light waves of multiple wavelengths or frequencies, which can be distinguished and measured by spectroscopic analysis.

Alternatively, in this embodiment, a Channel (Channel) refers to an optical signal of different wavelengths or frequencies being allocated to different communication channels in optical communication. Each channel may transmit one or more optical signals into which data is encoded, typically by modulation techniques. The number of the channels in the optical network can be configured and adjusted according to the system requirement, and different channels are mutually independent and can simultaneously transmit different data streams.

Optionally, in this embodiment, the simulated optical wave configured for the original optical wave is used to simulate the optical characteristics of the original optical wave in the transmission process, where the optical characteristics may, but are not limited to, refer to the characteristics of propagation, interaction and response of the optical signal in the optical system, and include transmission speed, transmission distance, transmission loss, refraction, reflection, scattering, absorption, interference, diffraction, and other aspects of the optical signal, and may, but are not limited to, determine the transmission quality, reliability and efficiency of the optical signal in the optical system.

Further by way of example, an optical signal having the same bandwidth as the original optical wave is optionally used as the artificial optical wave, wherein the bandwidth of the optical signal refers to the frequency range or the wavelength range included in the optical signal. In optical communications, the highest data rate at which a signal can be transmitted is determined to mimic the highest data rate of the original light wave transmission.

Optionally, in this embodiment, the original light wave is disposed on a first channel in the spectrum, the simulated light wave is disposed on at least one second channel, which may be implemented by, but not limited to, distributing light waves with different wavelengths to different communication channels, that is, unifying the wavelengths of the original light wave to the wavelengths corresponding to the first channel, and unifying the wavelengths of the simulated light wave to the wavelengths corresponding to the second channel, where if N (N is an integer greater than 1) second channels exist, N simulated light waves may be obtained, but not limited to, and unifying the simulated light waves in the N simulated light waves to the wavelengths corresponding to different second channels respectively.

Further by way of example, optionally, as shown in FIG. 3, the wavelengths of the original light waves 302 are unified to the wavelengths corresponding to the first channels 308 in the spectrum 306, and the wavelengths of the respective simulated light waves 304 are unified to the wavelengths corresponding to the respective second channels 310 in the spectrum 306.

Alternatively, in the present embodiment, the wavelength may be adjusted using a frequency converter, but is not limited to, e.g., the frequency converter may convert the frequency of the optical signal to a different frequency, thereby changing the wavelength. This typically involves the use of nonlinear optical effects such as second harmonic generation, difference frequency mixing, etc. By adjusting the parameters of the frequency converter and the frequency of the input optical signal, a change in wavelength can be achieved. Wavelength adjustment may also be performed using, but is not limited to, fiber gratings, such as fiber gratings, which are optical devices capable of selectively reflecting or transmitting light of a particular wavelength. By adjusting parameters of the fiber grating, such as period, refractive index modulation, etc., selective reflection or transmission of wavelengths can be achieved, thereby changing the wavelength of the optical signal. The wavelength may also be adjusted using, but not limited to, an optical filter, e.g., an optical filter may selectively pass or reject light of a particular wavelength. By selecting an appropriate optical filter, light of a particular wavelength range can be transmitted or suppressed, thereby changing the wavelength of the optical signal.

Alternatively, in this embodiment, the light waves disposed on each channel in the spectrum are subjected to superposition processing, which may be understood, but not limited to, combining the optical signals on different channels into a single optical signal.

Further by way of example, optionally at the receiving end, the optical signals on each channel may first need to be demultiplexed, i.e. the optical signals of the different channels are separated. May be implemented by a grating or other optical filter. Next, the demultiplexed channels are subjected to optical power equalization to ensure that the optical power of the individual channels is equal or close. May be implemented by an optical amplifier or other optical power conditioning technique. Then, the optical signals on the respective channels are subjected to superposition processing. The optical signals may be converted to electrical signals by a photodetector and the electrical signals combined using a circuit or processor. Finally, the target signal is extracted from the optical signal after superposition processing by a signal processing and demodulation technology, and subsequent data decoding and processing are performed.

Optionally, in this embodiment, the transmission performance test is used to evaluate the quality and performance of an Optical Signal in an Optical communication system, and a target test result obtained by the transmission performance test is used to represent performance of an original Optical wave on each channel in a spectrum, such as transmission loss (Transmission Loss), bandwidth (Bandwidth), delay (Delay), polarization-related (Polarization-related Metrics), eye pattern (Eye-diagnostic), bit Error Rate (BER), OSNR (Optical Signal-to-Noise Ratio), and the like.

It should be noted that, considering that the cost of disposing the original light wave on the full channel is higher, if the original light wave is disposed on a part of the channels, the accuracy of testing the optical signal cannot be guaranteed, and further, in this embodiment, the original light wave with high cost is disposed only on the first channel in the spectrum, and the simulated light wave with low cost is disposed on the other second channels in the spectrum except the first channel, so that the optical signal testing of the full channel is realized with lower cost, and further, the technical effect of improving the accuracy of testing the optical signal is realized.

Further illustratively, based on the scenario shown in fig. 3, continuing with the scenario shown in fig. 4, for example, the transmitting end 402 obtains the original light wave 302 to be tested and deploys the original light wave 302 onto the first channel 308 in the spectrum 306; the transmitting end 402 acquires the simulated light wave 304 configured for the original light wave 302 and deploys the simulated light wave 304 onto at least one second channel 310; the transmitting end 402 performs superposition processing on the light waves deployed on each channel in the spectrum 306 to obtain a target light signal; the transmitting end 402 performs transmission performance test on the original light wave by using the target optical signal to obtain a target test result, for example, the transmitting end 402 transmits the target optical signal to the receiving end 404, and the receiving end 404 performs performance feedback on the target optical signal.

According to the embodiment provided by the application, the original light wave to be tested is obtained and deployed on the first channel in the spectrum, wherein the spectrum comprises the first channel and at least one second channel; acquiring a simulated light wave configured for the original light wave, and deploying the simulated light wave to at least one second channel, wherein the simulated light wave is used for simulating the optical characteristics of the original light wave in the transmission process; performing superposition processing on light waves deployed on each channel in a spectrum to obtain a target light signal; and carrying out transmission performance test on the original light wave by using the target light signal to obtain a target test result, wherein the target test result is used for representing the performance of the original light wave on each channel in the spectrum. The high-cost original light waves are only deployed on the first channel in the spectrum, and the low-cost simulated light waves are deployed on other second channels outside the first channel in the spectrum, so that the aim of realizing the optical signal test of all the channels at low cost is fulfilled, and the technical effect of improving the test accuracy of the optical signals is realized.

As an alternative scheme, the transmission performance test is performed on the original light wave by using the target light signal, so as to obtain a target test result, including:

1-1, transmitting a target optical signal to an optical spectrum analyzer, and analyzing the spectrum characteristics of the target optical signal by the optical spectrum analyzer to obtain a first test result, wherein the target test result comprises the first test result;

1-2, adjusting the channels of the original light waves and the simulated light waves in the target light signals, which are deployed in the spectrum, sequentially transmitting the adjusted target light signals to an optical spectrum analyzer, and analyzing the adjusted target light signals by the optical spectrum analyzer to obtain a second test result, wherein the second test result comprises the second test result.

Optionally, in the present embodiment, the optical spectrum analyzer (Optical Spectrum Analyzer, abbreviated as OSA) is an instrument for measuring spectral characteristics of an optical signal, can provide information about the distribution and intensity of the optical signal over the wavelength or frequency, can also distinguish between very close wavelength or frequency components, measure optical signals at high and low optical power levels, rapidly scan the optical signal spectrum, capture rapidly changing signals, detect optical signals at low optical power levels, display the spectrogram of the optical signal in real time, and provide various analysis functions such as peak search, signal power measurement, etc.

Alternatively, in this embodiment, the spectral characteristics may refer to, but are not limited to, the characteristics and distribution of the signal in the frequency domain, describing the energy or power distribution of the signal at different frequencies, such as spectral Shape (Spectrum Shape), describing the distribution Shape of the signal over frequency. Common spectral shapes include sinusoidal, square wave, pulsed, gaussian, etc.; center Frequency (Center Frequency), the Frequency with the highest energy or power in the spectrum, represents the main Frequency component of the signal; the Bandwidth (Bandwidth), the frequency range in which the frequency spectrum contains signal energy or power, broadly determines the data transmission rate and capacity of the signal.

It should be noted that, in this embodiment, the original light wave is deployed on the full channel in a manner of simulating the light wave, but the original light wave is still limited to a single channel, which has a certain influence on the accuracy of the test of the optical signal. Further in this embodiment, the channels of the original light wave and the simulated light wave deployed in the spectrum in the target light signal are adjusted, the situation of the original light wave on different channels is traversed, and multiple situations are comprehensively analyzed respectively, so as to obtain a more accurate test result.

Further by way of example, as shown in fig. 5, optionally, a test analysis is performed according to a configuration in which the original light wave 502 is disposed on a first channel 508 in the spectrum 506 and the artificial light wave 504 is disposed on a second channel 510 in the spectrum 506, to obtain a first test result; furthermore, the channels of the original light wave 502 in the spectrum 506 are adjusted, the channels of the artificial light wave 504 in the spectrum 506 are synchronously adjusted, and the test analysis is further performed according to the configuration that the original light wave 502 is disposed on the second channel 510 in the spectrum 506 and the artificial light wave 504 is disposed on the first channel 508 in the spectrum 506, so as to obtain a second test result.

According to the embodiment provided by the application, the target optical signal is transmitted to the optical spectrum analyzer, and the optical spectrum analyzer analyzes the spectrum characteristics of the target optical signal to obtain the first test result, wherein the target test result comprises the first test result; the method comprises the steps of adjusting the channels of original light waves and simulated light waves in target light signals, sequentially transmitting the adjusted target light signals to an optical spectrum analyzer, and analyzing the adjusted target light signals by the optical spectrum analyzer to obtain a second test result, wherein the target test result comprises the second test result, so that the purpose of comprehensively analyzing to obtain more accurate test results is achieved, and the technical effect of improving the test accuracy of the light signals is achieved.

As an alternative solution, adjusting a channel of the original light wave and the simulated light wave in the target light signal disposed in the spectrum, sequentially transmitting the adjusted target light signal to an optical spectrum analyzer, and analyzing the adjusted target light signal by the optical spectrum analyzer to obtain a second test result, including:

the following steps are executed until N second test results are obtained, wherein N is the number of channels in the spectrum:

s2-1, adjusting a channel of an original light wave in a target light signal, which is deployed in a spectrum, to be a current first channel, wherein the current first channel is a channel of the original light wave, which is deployed in the spectrum for the first time in the transmission process of the target light signal;

s2-2, adjusting the channels of the simulated light waves in the target light signals deployed in the spectrum into a plurality of current second channels, wherein the plurality of current second channels are all other channels except the current first channel in the spectrum;

s2-3, transmitting the current adjusted target optical signal to an optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current second test result;

s2-4, determining a channel which is not deployed in the spectrum in the transmission process of the target optical signal of the original optical wave as a current first channel under the condition that the number of the obtained second test results is smaller than N, until N second test results are obtained.

Optionally, in this embodiment, in the case where the number of obtained second test results is smaller than N, a channel of the original light wave that is not yet disposed in the spectrum during the transmission of the target light signal is determined as the current first channel, which may be understood as, but is not limited to, a channel of the original light wave that is not yet disposed in the spectrum during the transmission of the target light signal, S2-1, S2-2, S2-3 are repeatedly executed until all channels of the original light wave are disposed in the spectrum during the transmission of the target light signal, and all channels are disposed in the spectrum, which may be understood as, but is not limited to, repeatedly executing N times S2-1, S2-2, S2-3, and further determining whether N second test results are obtained as a basis for determining whether all channels are disposed in the spectrum.

As an alternative, the current adjusted target optical signal is transmitted to an optical spectrum analyzer, and the current adjusted target optical signal is analyzed by the optical spectrum analyzer to obtain a current second test result, including:

under the condition that the start-stop frequency point of the grid where the original light wave in the target light signal is located is obtained, the start-stop frequency point and the current adjusted target light signal are transmitted to an optical spectrum analyzer, and the optical spectrum analyzer analyzes the original light wave in the current adjusted target light signal according to the start-stop frequency point to obtain a current second test result.

Alternatively, in this embodiment, the grid is a division of the optical signal into a plurality of small areas and is used to record the intensity or other characteristics of the light in each small area. In optical imaging, the grid is a two-dimensional array of pixels, each pixel representing a small area. By recording the intensity or color information of the light in each pixel, the entire image can be acquired. In optical sensing applications, grids may be used to record information about the intensity, wavelength, phase, etc. of light. By placing a light sensitive element or other sensor in each small area, measurement and analysis of the light signal can be achieved.

It should be noted that, in order to ensure that the test analysis in the subsequent flow can adapt to the original light wave on the multiple channels, in this embodiment, the start-stop frequency point of the grid where the original light wave is located is recorded, the recorded start-stop frequency point and the current adjusted target light signal are transmitted to the optical spectrum analyzer, and the optical spectrum analyzer analyzes the original light wave in the current adjusted target light signal according to the start-stop frequency point to obtain the current second test result, so as to improve the stability of the test result.

According to the embodiment provided by the application, under the condition that the start-stop frequency point of the grid where the original light wave in the target light signal is located is obtained, the start-stop frequency point and the current adjusted target light signal are transmitted to the optical spectrum analyzer, and the optical spectrum analyzer analyzes the original light wave in the current adjusted target light signal according to the start-stop frequency point to obtain the current second test result, so that the aim of ensuring that the test analysis in the subsequent flow can adapt to the original light wave on the multiple channels is fulfilled, and the technical effect of improving the stability of the test result is realized.

s3-1, transmitting the current adjusted target optical signal to an optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current first test sub-result, wherein the current second test result comprises the current first test sub-result;

s3-2, stopping transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the additional noise after stopping transmitting the current adjusted target optical signal by the optical spectrum analyzer to obtain a current second test sub-result, wherein the current second test result comprises the current second test sub-result.

It should be noted that, to obtain a more accurate test result, a common analysis is performed in combination with a normal optical signal (target optical signal) and a noise signal (additive noise) after stopping the optical signal, where the noise signal after stopping the optical signal may be, but is not limited to, understood as a background signal generated due to the absence of the optical signal.

According to the embodiment provided by the application, the current adjusted target optical signal is transmitted to the optical spectrum analyzer, and the current adjusted target optical signal is analyzed by the optical spectrum analyzer to obtain the current first test sub-result, wherein the current second test result comprises the current first test sub-result; and stopping transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the additional noise after the transmission of the current adjusted target optical signal is stopped by the optical spectrum analyzer to obtain a current second test sub-result, wherein the current second test result comprises the current second test sub-result, so that the aim of jointly analyzing the normal optical signal and the noise signal after the optical signal is stopped is fulfilled, and the technical effect of improving the accuracy of the test result is realized.

As an alternative, deploying the original light wave onto a first channel in the spectrum, comprising: filtering and shaping the original light wave to obtain a shaped original light wave, wherein the wavelength of the shaped original light wave is equal to the wavelength corresponding to the first wave channel;

as an alternative, deploying the artificial light waves onto the at least one second channel comprises: and obtaining a wide-spectrum light source, and carrying out filtering shaping on the wide-spectrum light source to obtain a plurality of shaped wide-spectrum light sources, wherein the wavelength of each wide-spectrum light source in the plurality of shaped wide-spectrum light sources is equal to the wavelength corresponding to each second channel in at least one second channel.

Optionally, in this embodiment, filter shaping is used to remove noise or unwanted frequency components from the signal and to smooth or shape the signal to improve signal quality or extract information of interest. Filter shaping is typically achieved by applying filters. A filter is a device or algorithm that is capable of selectively passing or suppressing signals in a particular frequency range. Different types of filter shaping effects can be realized according to the design and parameter setting of the filter. Such as a low-pass filter, by allowing only low-frequency signals to pass, suppressing high-frequency signals, it is possible to smooth signals, remove high-frequency noise, or suppress high-frequency oscillations; such as a high pass filter, by allowing only high frequency signals to pass, suppressing low frequency signals, low frequency noise can be removed or low frequency oscillations can be suppressed; such as a band-pass filter, signals in a specific frequency range can be extracted or noise in other frequency ranges can be removed by only allowing signals in the specific frequency range to pass and inhibiting signals in other frequency ranges; such as a band reject filter, interference signals in a particular frequency range can be removed by allowing only signals outside the particular frequency range to pass, and suppressing signals in the particular frequency range.

Alternatively, in the present embodiment, the broad spectrum light source may refer to, but is not limited to, a light source capable of emitting light in a broad spectrum range, emitting light in the entire visible spectrum range (typically 400 nm to 700 nm) or a broad wavelength range. In contrast to a narrow-spectrum light source (e.g., a laser), a broad-spectrum light source has a continuous spectral distribution that includes a plurality of wavelength components.

As an alternative, before acquiring the original light wave to be tested, the method further includes:

s4-1, acquiring a signal test request, wherein the signal test request is used for requesting to test performance of an original light wave when the original light wave is transmitted between a first optical cross connection point and a second optical cross connection point;

s4-2, responding to the signal test request, and accessing a coupler and a filter at the first optical cross connection point, wherein the coupler is used for carrying out superposition processing on light waves deployed on each channel in the spectrum, and the filter is used for carrying out filtering shaping on the original light waves and the wide-spectrum light source.

It should be noted that, to improve the flexibility of the optical signal test, the optical signal test structure is decoupled, so that the optical signal quality between the at least two optical cross connection points can be tested by building at least two matched optical cross connection points, and a coupler and a filter.

According to the embodiment provided by the application, the signal test request is obtained, wherein the signal test request is used for requesting to test the performance of the original light wave when the original light wave is transmitted between the first optical cross connection point and the second optical cross connection point; responding to a signal test request, and accessing a coupler and a filter at a first optical cross connection point, wherein the coupler is used for superposing light waves deployed on each channel in a spectrum, and the filter is used for filtering and shaping original light waves and a wide-spectrum light source, so that the aim of decoupling a test structure of an optical signal is achieved, and the technical effect of improving the test flexibility of the optical signal is achieved.

s5-1, measuring the total optical power of a target optical signal;

s5-2, an optical band-pass filter is used for blocking signal light waves in the target optical signal;

s5-3, measuring the noise optical power of the target optical signal after blocking;

s5-4, dividing the total optical power by the noise optical power to obtain an optical signal to noise ratio of the target optical signal, wherein the target test result comprises the optical signal to noise ratio, and the optical signal to noise ratio is an index for measuring the quality of the target optical signal.

Alternatively, in this embodiment, the osnr may be, but is not limited to, an important indicator for measuring the quality of an optical signal, which is the ratio of the intensity of the optical signal to the intensity of noise, to describe the relative magnitudes of the signal and the noise.

Optionally, in this embodiment, to improve the osnr, the signal-to-noise ratio may be improved by, but not limited to, adding the intensity of the optical signal, and thus improving the osnr, by increasing the power of the light source, using an amplifier, and the like; or, the noise intensity can be reduced, the optical signal to noise ratio can be improved, and the noise can be realized by optimizing the system design, using a low-noise light source and detector, controlling environmental noise and the like; or, by adopting proper signal processing algorithms such as filtering, equalization, encoding and the like, noise can be suppressed and signals can be enhanced, so that the optical signal-to-noise ratio can be improved.

It should be noted that, in order to improve the accuracy of the optical signal test, an optical signal to noise ratio is used as an indicator for measuring the quality of the optical signal of the target, and the optical signal to noise ratio can measure the quality of the optical signal, so as to describe the relative magnitudes of the signal and the noise.

By the embodiment provided by the application, the total optical power of the target optical signal is measured; using an optical bandpass filter to block signal light waves in the target optical signal; measuring the noise optical power of the blocked target optical signal; the total optical power is divided by the noise optical power to obtain the optical signal to noise ratio of the target optical signal, wherein the target test result comprises the optical signal to noise ratio, and the optical signal to noise ratio is an index for measuring the quality of the target optical signal, so that the aim of adopting the optical signal to noise ratio as the index for measuring the quality of the target optical signal is fulfilled, and the technical effect of improving the test accuracy of the optical signal is realized.

As an alternative scheme, for facilitating understanding, the test method of the optical signal transmission quality is applied to the test scene of the optical transmission network system, and whether the performance of the optical transmission system meets the application condition of the landing can be tested and verified rapidly.

It should be noted that, in this embodiment, the full wave system verification is completed at relatively low cost by using the true and false service channels; the signal measurement width is adaptively modified according to the grid width, so that the purpose of accurately measuring the OSNR performance of each channel of the optical transmission system of the flexible grid is achieved; through an automatic test method, the device to be tested and a spectrum analyzer (Optical Spectrum Analyzers, OSA for short) are remotely controlled, an OSNR (open sensor network) of a system is automatically measured by a shutdown method, and full spectrum traversal is completed; the dynamic topology is realized by an optical cross connection device (optical cross connect, abbreviated as OXC), the testing device is decoupled from the topology to be tested, and the transmission performance test is carried out at any position of the system.

Optionally, in this embodiment, there is a service interconnection requirement between a-b, a-c, and b-c in the optical transport network system as shown in fig. 6. In the system test before network deployment, it is necessary to test and verify in advance whether the transmission capability of the system among a-b, a-c and b-c can reach the landing requirement, so as to ensure that the service is landed and stably operates.

Further, the optical transmission system uses dense wavelength division multiplexing (Dense Wavelength Division Multiplexing, DWDM for short) technology to realize parallel transmission of multiple wavelengths in the same core optical fiber, so as to achieve the purpose of high capacity and large bandwidth. Thus, in testing the OSNR performance of a system, it is necessary to cover each wavelength in the system. In addition, the interaction between different wavelengths can affect the quality of optical signals, and in single-wave, few-wave and full-wave systems, signals can have different characteristics, so that sufficient scene coverage is needed, which brings about two problems, namely, the high cost of the full-wave system, the equipment support of each wave, extremely high test cost, and the large test workload of the multi-scene coverage, and the frequent need of manual intervention in the test topology.

Alternatively, in the present embodiment, in order to solve the above-described problem, in order to reduce the test cost of the full wave system, the concept of a dummy service waveform is used. The optical signal performance of the DWDM system is mainly related to signal power spectrums with different frequencies and is not influenced by whether the signals carry real information or not, so that the purpose of testing and verifying the optical performance of the full wave system can be achieved by constructing an optical signal similar to a service wave through a filter which is the same as the real service wave. And secondly, the access of the real wavelength is controlled by an automatic test method, different experimental scenes are dynamically controlled by means of the OXC, and the problem of multiple operation scenes is solved by the automatic test.

Further by way of example, and optional example, as shown in FIG. 7, a quick test verifies OSNR performance between a-b, a-c, b-c, and the optical cross connect device contacts include contact 1, contact 2, contact 3, contact 4, and any two-to-two contact interworking can be achieved by the OXC. In order to reduce the problem of fault connection and bad connection possibly caused by human intervention in the test topology, which affects the test quality, the OXC is connected in advance when the test topology is constructed, and the dynamic access of the topology is realized through a remote control command, such as the performance between the test a-c, the access couplers of the joints 1 and 5 are configured, the access splitters of the joints 4 and 6 are configured, the performance between the test a-b is to be tested, the access couplers of the joints 1 and 5 are configured, and the access splitters of the joints 2 and 6 are configured. That is, the test topology in the above example is not limited, and the test of the transmission OSNR performance can be performed by completing the connection with the contacts 5 and 6 through the spectrocoupler, and the time for setting up the transmission capability test environment can be greatly reduced.

Alternatively, in this embodiment, for a structured spurious wave, a light source having a spectral shape of the service wave, without service information, is used to simulate the optical characteristics of the service wave during transmission. The construction of the spurious wave is shown in fig. 8, and the spurious wave is obtained by filtering and shaping the spurious wave by a broad spectrum light source through a filter, and the spurious wave has the same bandwidth as the service wave. The full wave system test is realized at low cost by adopting true and false wave coupling in the test. Therefore, in the construction process of the spurious wave, the light of the position of the service wave is blocked in addition to shaping the spurious wave during filtering, so that the influence on the service wave during the subsequent true and false wave coupling is prevented. The constructed false wave can be overlapped with the service wave through a 1:1 coupler to complete the construction of a full wave system, so that the test of the transmission performance of the system can be more accurately completed.

Optionally, in this embodiment, as shown in fig. 9, an automatic implementation shutdown method measures OSNR, and implements service wavelength modification through an equipment interface, and automatically performs a traversal test on transmission performance of a full-spectrum frequency point, which specifically includes the following steps:

s1, initializing environment comprises establishing multiplexing sections of a system to be tested, and establishing topology such as passing all channels on an optical path and connecting an OXC contact;

s2, according to the test requirement, a test device (a pseudo-wave generator and an OSNR measuring instrument) is connected into the topology to be tested through a coupling/beam splitter, so that the whole physical test environment is prepared;

s3, starting the operation of automatic test on a server, and initializing a device to be tested (the device needs to have a north interface with each basic function) and a remote interface of an OSA instrument;

s4, configuring the real service wavelength to the 1 st wave of the spectrum, and normally turning on the laser;

s5, inquiring the equipment and recording the start-stop frequency points of the grid where the real service wave is located, so that the following measurement can adapt to the variable signal width of the flexible grid system, and the accuracy of power scanning is ensured.

S6, configuring the false wave to all channels except the 1 st wave;

s7, starting repeated scanning signals by the OSA;

S8, the OSA scans power according to the start-stop frequency obtained in the 5 th part;

s9, closing a laser of the real service wave through the equipment interface;

s10, the OSA scans power according to the start-stop frequency obtained in the 5 th part;

s11, the OSA scans power according to the width of 0.1nm by taking the signal frequency as the midpoint;

s12, calculating a signal OSNR according to an integration method;

s13, turning on a service wave laser;

s14, judging whether the full spectrum traversal is completed or not, repeating the steps S4-S14 if the full spectrum traversal is not completed, continuing to configure the next wavelength measurement, and ending the test if the full spectrum traversal is completed.

According to the embodiment provided by the application, the full wave system is tested in a true and false wave combination mode, so that the requirements of test equipment are reduced, and the test cost is lowered; the testing device is separated from the testing topology through the optical switch matrix, so that the testing device can be flexibly connected to each position of the testing topology, and the testing flexibility and efficiency are greatly improved; the transmission performance test is automatically carried out, the test process with strong specialization is coded, the spectrum is automatically traversed, and the test result is more accurate while the manpower of professional technicians is liberated.

It will be appreciated that in the specific embodiments of the present application, related data such as user information is involved, and when the above embodiments of the present application are applied to specific products or technologies, user permissions or consents need to be obtained, and the collection, use and processing of related data need to comply with related laws and regulations and standards of related countries and regions.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

According to another aspect of the embodiment of the present application, there is also provided an optical signal transmission quality testing apparatus for implementing the above optical signal transmission quality testing method. As shown in fig. 10, the apparatus includes:

a first obtaining unit 1002, configured to obtain an original light wave to be tested, and deploy the original light wave to a first channel in a spectrum, where the spectrum includes the first channel and at least one second channel;

a second obtaining unit 1004, configured to obtain a simulated light wave configured for the original light wave, and deploy the simulated light wave onto at least one second channel, where the simulated light wave is used to simulate an optical characteristic of the original light wave in a transmission process;

A processing unit 1006, configured to perform superposition processing on light waves disposed on each channel in the spectrum, so as to obtain a target optical signal;

and the testing unit 1008 is configured to perform transmission performance testing on the original light wave by using the target light signal, so as to obtain a target testing result, where the target testing result is used to represent performance of the original light wave on each channel in the spectrum.

Specific embodiments may refer to examples shown in the above-mentioned optical signal transmission quality testing apparatus, and this example will not be described herein.

As an alternative, the test unit 1008 includes:

the first analysis module is used for transmitting the target optical signal to the optical spectrum analyzer, and analyzing the spectrum characteristic of the target optical signal by the optical spectrum analyzer to obtain a first test result, wherein the target test result comprises the first test result;

the second analysis module is used for adjusting the channels of the original light waves and the simulated light waves in the target light signals, which are deployed in the spectrum, sequentially transmitting the adjusted target light signals to the optical spectrum analyzer, and analyzing the adjusted target light signals by the optical spectrum analyzer to obtain a second test result, wherein the target test result comprises the second test result.

Specific embodiments may refer to examples shown in the above-mentioned optical signal transmission quality testing method, and this example will not be described herein.

As an alternative, the second analysis module includes:

the execution sub-module is used for executing the following steps until N second test results are obtained, wherein N is the number of channels in the spectrum:

the method comprises the steps of adjusting a channel of an original light wave in a target light signal, which is deployed in a spectrum, to be a current first channel, wherein the current first channel is a channel of the original light wave, which is deployed in the spectrum for the first time in the transmission process of the target light signal;

the method comprises the steps of adjusting a channel of a simulated light wave in a target light signal, which is deployed in a spectrum, to a plurality of current second channels, wherein the plurality of current second channels are all other channels except the current first channel in the spectrum;

transmitting the current adjusted target optical signal to an optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current second test result;

and under the condition that the number of the obtained second test results is smaller than N, determining the channel which is not deployed in the spectrum in the transmission process of the target optical signal by the original optical wave as the current first channel until N second test results are obtained.

As an alternative, the second analysis module includes:

the third analysis module is used for transmitting the start-stop frequency point and the current adjusted target optical signal to the optical spectrum analyzer under the condition that the start-stop frequency point of the grid where the original optical wave is located in the target optical signal is acquired, and analyzing the original optical wave in the current adjusted target optical signal by the optical spectrum analyzer according to the start-stop frequency point to obtain a current second test result.

As an alternative, the second analysis module includes:

the first analysis sub-module is used for transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current first test sub-result, wherein the current second test result comprises the current first test sub-result;

and the second analysis sub-module is used for stopping transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the additional noise after the transmission of the current adjusted target optical signal is stopped by the optical spectrum analyzer to obtain a current second test sub-result, wherein the current second test result comprises the current second test sub-result.

As an alternative, the first obtaining unit 1002 includes: the first filtering module is used for filtering and shaping the original light wave to obtain a shaped original light wave, wherein the wavelength of the shaped original light wave is equal to the wavelength corresponding to the first wave channel;

the second acquisition unit 1004 includes: the second filtering module is used for obtaining the wide-spectrum light source, filtering and shaping the wide-spectrum light source to obtain a plurality of shaped wide-spectrum light sources, wherein the wavelength of each wide-spectrum light source in the plurality of shaped wide-spectrum light sources is equal to the wavelength corresponding to each second channel in at least one second channel.

As an alternative, the apparatus further includes:

the third acquisition unit is used for acquiring a signal test request before acquiring the original light wave to be tested, wherein the signal test request is used for requesting to test the performance of the original light wave when transmitted between the first optical cross connection point and the second optical cross connection point;

The access unit is used for responding to a signal test request before acquiring an original light wave to be tested, and accessing a coupler and a filter at a first optical cross connection point, wherein the coupler is used for carrying out superposition processing on the light wave deployed on each channel in a spectrum, and the filter is used for carrying out filtering shaping on the original light wave and a wide spectrum light source.

As an alternative, the test unit 1008 includes:

a first measurement unit for measuring a total optical power of the target optical signal;

a blocking unit for blocking a signal light wave in the target optical signal using an optical band-pass filter;

a second measuring unit for measuring the noise optical power of the blocked target optical signal;

and the calculation unit is used for obtaining the optical signal to noise ratio of the target optical signal by dividing the total optical power by the noise optical power, wherein the target test result comprises the optical signal to noise ratio which is an index for measuring the quality of the target optical signal.

According to a further aspect of the embodiments of the present application, there is also provided an electronic device for implementing the above-mentioned method for testing optical signal transmission quality, which may be, but is not limited to, the user device 102 or the server 112 shown in fig. 1, the embodiment being exemplified by the electronic device as the user device 102, and further as shown in fig. 11, the electronic device comprising a memory 1102 and a processor 1104, the memory 1102 having stored therein a computer program, the processor 1104 being arranged to perform the steps of any of the method embodiments described above by means of the computer program.

Alternatively, in this embodiment, the electronic device may be located in at least one network device of a plurality of network devices of the computer network.

Alternatively, in the present embodiment, the above-described processor may be configured to execute the following steps by a computer program:

s6-1, acquiring an original light wave to be tested, and disposing the original light wave on a first channel in a spectrum, wherein the spectrum comprises the first channel and at least one second channel;

s6-2, obtaining a simulation light wave configured for the original light wave, and disposing the simulation light wave on at least one second wave channel, wherein the simulation light wave is used for simulating the optical characteristics of the original light wave in the transmission process;

S6-3, performing superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal;

s6-4, performing transmission performance test on the original light wave by using the target light signal to obtain a target test result, wherein the target test result is used for representing performance of the original light wave on each channel in the spectrum.

Alternatively, it will be appreciated by those skilled in the art that the structure shown in fig. 11 is merely illustrative, and fig. 11 is not intended to limit the structure of the electronic device. For example, the electronic device may also include more or fewer components (e.g., network interfaces, etc.) than shown in FIG. 11, or have a different configuration than shown in FIG. 11.

The memory 1102 may be used for storing software programs and modules, such as program instructions/modules corresponding to the method and apparatus for testing optical signal transmission quality in the embodiment of the present application, and the processor 1104 executes the software programs and modules stored in the memory 1102 to perform various functional applications and data processing, i.e. implement the method for testing optical signal transmission quality. Memory 1102 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 1102 may further include memory located remotely from processor 1104, which may be connected to the electronic device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof. The memory 1102 may be used for storing information such as, but not limited to, original light waves, simulated light waves, and target test results. As an example, as shown in fig. 11, the memory 1102 may include, but is not limited to, a first acquisition unit 1002, a second acquisition unit 1004, a processing unit 1006, and a testing unit 1008 in the optical signal transmission quality testing apparatus. In addition, other module units in the optical signal transmission quality testing device may be included, but are not limited to, and are not described in detail in this example.

Optionally, the transmission device 1106 is used to receive or transmit data via a network. Specific examples of the network described above may include wired networks and wireless networks. In one example, the transmission device 1106 includes a network adapter (Network Interface Controller, NIC) that may be connected to other network devices and routers via a network cable to communicate with the internet or a local area network. In one example, the transmission device 1106 is a Radio Frequency (RF) module for communicating wirelessly with the internet.

In addition, the electronic device further includes: a display 1108 for displaying the original light wave, the simulated light wave, the target test result, and other information; and a connection bus 1110 for connecting the respective module parts in the above-described electronic apparatus.

In other embodiments, the user device or the server may be a node in a distributed system, where the distributed system may be a blockchain system, and the blockchain system may be a distributed system formed by connecting the plurality of nodes through a network communication. The nodes may form a peer-to-peer network, and any type of computing device, such as a server, a user device, etc., may become a node in the blockchain system by joining the peer-to-peer network.

According to one aspect of the present application, there is provided a computer program product comprising a computer program/instruction containing program code for executing the method shown in the flow chart. In such embodiments, the computer program may be downloaded and installed from a network via a communication portion, and/or installed from a removable medium. When executed by a central processing unit, performs various functions provided by embodiments of the present application.

The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

It should be noted that the computer system of the electronic device is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.

The computer system includes a central processing unit (Central Processing Unit, CPU) which can execute various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) or a program loaded from a storage section into a random access Memory (Random Access Memory, RAM). In the random access memory, various programs and data required for the system operation are also stored. The CPU, the ROM and the RAM are connected to each other by bus. An Input/Output interface (i.e., I/O interface) is also connected to the bus.

The following components are connected to the input/output interface: an input section including a keyboard, a mouse, etc.; an output section including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and the like, and a speaker, and the like; a storage section including a hard disk or the like; and a communication section including a network interface card such as a local area network card, a modem, and the like. The communication section performs communication processing via a network such as the internet. The drive is also connected to the input/output interface as needed. Removable media such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, and the like are mounted on the drive as needed so that a computer program read therefrom is mounted into the storage section as needed.

In particular, the processes described in the various method flowcharts may be implemented as computer software programs according to embodiments of the application. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such embodiments, the computer program may be downloaded and installed from a network via a communication portion, and/or installed from a removable medium. The computer program, when executed by a central processing unit, performs the various functions defined in the system of the application.

According to one aspect of the present application, there is provided a computer-readable storage medium, from which a processor of a computer device reads the computer instructions, the processor executing the computer instructions, causing the computer device to perform the methods provided in the various alternative implementations described above.

Alternatively, in the present embodiment, the above-described computer-readable storage medium may be configured to store a computer program for executing the steps of:

s7-1, acquiring an original light wave to be tested, and disposing the original light wave on a first channel in a spectrum, wherein the spectrum comprises the first channel and at least one second channel;

s7-2, obtaining a simulation light wave configured for the original light wave, and disposing the simulation light wave on at least one second wave channel, wherein the simulation light wave is used for simulating the optical characteristics of the original light wave in the transmission process;

s7-3, performing superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal;

s7-4, performing transmission performance test on the original light wave by using the target light signal to obtain a target test result, wherein the target test result is used for representing performance of the original light wave on each channel in the spectrum.

Alternatively, in this embodiment, it will be understood by those skilled in the art that all or part of the steps in the methods of the above embodiments may be performed by a program for instructing electronic equipment related hardware, and the program may be stored in a computer readable storage medium, where the storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.

The integrated units in the above embodiments may be stored in the above-described computer-readable storage medium if implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing one or more computer devices (which may be personal computers, servers or network devices, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.

In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In several embodiments provided in the present application, it should be understood that the disclosed user equipment may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims

1. A method for testing the transmission quality of an optical signal, comprising:

acquiring an original light wave to be tested, and disposing the original light wave on a first channel in a spectrum, wherein the spectrum comprises the first channel and at least one second channel;

acquiring a simulated light wave configured for the original light wave, and deploying the simulated light wave to the at least one second channel, wherein the simulated light wave is used for simulating the optical characteristics of the original light wave in the transmission process;

Performing superposition processing on light waves deployed on each channel in the spectrum to obtain a target light signal;

and carrying out transmission performance test on the original light wave by using the target light signal to obtain a target test result, wherein the target test result is used for representing the performance of the original light wave on each channel in the spectrum.

2. The method according to claim 1, wherein the performing the transmission performance test on the original light wave by using the target light signal to obtain a target test result includes:

transmitting the target optical signal to an optical spectrum analyzer, and analyzing the spectrum characteristic of the target optical signal by the optical spectrum analyzer to obtain a first test result, wherein the target test result comprises the first test result;

the original light wave and the simulated light wave in the target light signal are adjusted to be deployed in the wave channels in the spectrum, the adjusted target light signal is sequentially transmitted to the optical spectrum analyzer, and the optical spectrum analyzer analyzes the adjusted target light signal to obtain a second test result, wherein the target test result comprises the second test result.

3. The method of claim 2, wherein the adjusting the channel in which the original light wave and the artificial light wave in the target light signal are disposed in the spectrum, sequentially transmitting the adjusted target light signal to the optical spectrum analyzer, and analyzing the adjusted target light signal by the optical spectrum analyzer to obtain a second test result, comprises:

the channel of the original light wave in the target light signal, which is deployed in the spectrum, is adjusted to be a current first channel, wherein the current first channel is the channel of the original light wave, which is deployed in the spectrum for the first time in the transmission process of the target light signal;

adjusting the channels of the simulated light waves in the target light signals, which are deployed in the spectrum, to a plurality of current second channels, wherein the plurality of current second channels are all other channels except the current first channels in the spectrum;

transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current second test result;

And under the condition that the number of the obtained second test results is smaller than N, determining the channel which is not deployed in the spectrum in the transmission process of the target optical signal by the original optical wave as the current first channel until the N second test results are obtained.

4. A method according to claim 3, wherein transmitting the current adjusted target optical signal to the optical spectrum analyzer and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current second test result comprises:

transmitting the start-stop frequency point and the current adjusted target optical signal to the optical spectrum analyzer under the condition that the start-stop frequency point of the grid where the original optical wave is located in the target optical signal is obtained, and analyzing the original optical wave in the current adjusted target optical signal by the optical spectrum analyzer according to the start-stop frequency point to obtain the current second test result.

5. A method according to claim 3, wherein transmitting the current adjusted target optical signal to the optical spectrum analyzer and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current second test result comprises:

Transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the current adjusted target optical signal by the optical spectrum analyzer to obtain a current first test sub-result, wherein the current second test result comprises the current first test sub-result;

and stopping transmitting the current adjusted target optical signal to the optical spectrum analyzer, and analyzing the additional noise after the transmission of the current adjusted target optical signal is stopped by the optical spectrum analyzer to obtain a current second test sub-result, wherein the current second test result comprises the current second test sub-result.

6. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the deploying the original light wave onto a first channel in a spectrum includes: filtering and shaping the original light wave to obtain a shaped original light wave, wherein the wavelength of the shaped original light wave is equal to the wavelength corresponding to the first channel;

the deploying the artificial light waves onto the at least one second channel comprises: and obtaining a broad spectrum light source, and carrying out filtering shaping on the broad spectrum light source to obtain a plurality of shaped broad spectrum light sources, wherein the wavelength of each broad spectrum light source in the plurality of shaped broad spectrum light sources is equal to the wavelength corresponding to each second channel in the at least one second channel.

7. The method of claim 6, wherein prior to said obtaining the original light wave to be tested, the method further comprises:

acquiring a signal test request, wherein the signal test request is used for requesting to test performance of the original light wave when the original light wave is transmitted between a first optical cross connection point and a second optical cross connection point;

and responding to the signal test request, and accessing a coupler and a filter at a first optical cross connection point, wherein the coupler is used for carrying out superposition processing on light waves deployed on each channel in the spectrum, and the filter is used for carrying out filtering shaping on the original light waves and the wide-spectrum light source.

8. The method according to any one of claims 1 to 7, wherein the performing a transmission performance test on the original light wave by using the target light signal to obtain a target test result includes:

measuring the total optical power of the target optical signal;

blocking signal light waves in the target optical signal by using an optical bandpass filter;

measuring the noise optical power of the blocked target optical signal;

and dividing the total optical power by the noise optical power to obtain an optical signal to noise ratio of the target optical signal, wherein the target test result comprises the optical signal to noise ratio, and the optical signal to noise ratio is an index for measuring the quality of the target optical signal.

9. A test apparatus for optical signal transmission quality, comprising:

the device comprises a first acquisition unit, a second acquisition unit and a first detection unit, wherein the first acquisition unit is used for acquiring an original light wave to be tested and disposing the original light wave on a first channel in a spectrum, and the spectrum comprises the first channel and at least one second channel;

the second acquisition unit is used for acquiring the simulated light wave configured for the original light wave and deploying the simulated light wave on the at least one second channel, wherein the simulated light wave is used for simulating the optical characteristics of the original light wave in the transmission process;

the processing unit is used for carrying out superposition processing on the light waves deployed on each channel in the spectrum to obtain a target light signal;

and the testing unit is used for testing the transmission performance of the original light wave by using the target light signal to obtain a target testing result, wherein the target testing result is used for representing the performance of the original light wave on each channel in the spectrum.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program, wherein the computer program, when run by an electronic device, performs the method of any one of claims 1 to 8.

11. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the method as claimed in any one of claims 1 to 8.

12. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to execute the method according to any of the claims 1 to 8 by means of the computer program.