CN112104417A - Optical power detection and parameter calibration method and device, electronic equipment and storage medium - Google Patents
Optical power detection and parameter calibration method and device, electronic equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0775—Performance monitoring and measurement of transmission parameters
Abstract
The embodiment of the application discloses a method and a device for detecting optical power and calibrating parameters, electronic equipment and a storage medium, wherein the method for detecting the optical power comprises the steps of determining a first current and a first temperature; the first current is characteristic of the output current of the photoelectric detector; the first temperature is indicative of an operating temperature of the photodetector; determining a second parameter set according to the first temperature and the first parameter set; a parameter in the second set of parameters characterizes an effect of the first temperature on the photodetector; the parameters in the first parameter set characterize a correspondence of temperature to parameter values of the parameters in the second parameter set; and determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current.
Description
Technical Field
The present application relates to the field of optical communications technologies, and in particular, to a method and an apparatus for optical power detection and parameter calibration, an electronic device, and a storage medium.
Background
In the related art, thermal noise may be introduced into each detection link of optical power detection, and the thermal noise is superimposed on an actual optical power detection result, so that the obtained optical power detection result is inaccurate.
Disclosure of Invention
In view of the above, embodiments of the present application provide a method and an apparatus for optical power detection and parameter calibration, an electronic device, and a storage medium, so as to at least solve the problem of inaccurate optical power detection result in the related art.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the invention provides an optical power detection method, which comprises the following steps:
determining a first current and a first temperature; the first current is characteristic of the output current of the photoelectric detector; the first temperature is indicative of an operating temperature of the photodetector;
determining a second parameter set based on the first temperature and the first parameter set; parameters in the second set of parameters characterize an effect of the first temperature on the photodetector; the parameters in the first parameter set represent the corresponding relationship between the temperature and the parameter values of the parameters in the second parameter set;
and determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current.
In the above scheme, the method further includes:
the first parameter set is recalled from the memory of the photodetector.
The embodiment of the invention provides a parameter calibration method, which is used for calibrating a first parameter set in an optical power detection method; the method comprises the following steps:
determining a corresponding second current based on at least two first optical powers corresponding to each of the at least two second temperatures; wherein the first optical power is characteristic of an input optical power of the photodetector; the second current represents the corresponding output current of the photoelectric detector working at the corresponding second temperature when the corresponding first optical power is input;
determining a third parameter set corresponding to each of at least two second temperatures through a setting algorithm based on the determined second current and the first optical power; parameters in the third parameter set characterize the effect of the corresponding second temperature on the photodetector;
fitting each parameter in all third parameter sets based on the third parameter sets corresponding to all second temperatures in the at least two second temperatures, and determining a fitting result corresponding to each parameter in all third parameter sets; and outputting the fitting results corresponding to all the parameters as the first parameter set.
In the foregoing solution, the determining, by a setting algorithm, a third parameter set corresponding to each of the at least two second temperatures based on the determined second current and the determined first optical power includes:
determining a first parameter corresponding to the second temperature; the first parameter characterizes the effect of the corresponding second temperature on the photodetector;
determining a second parameter and a third parameter corresponding to the second temperature; the second parameter represents a linear fitting slope corresponding to the first parameter; the third parameter characterizes a linear fitting intercept corresponding to the first parameter.
In the above scheme, the method further comprises:
determining a second temperature in each of the at least two temperature intervals;
wherein the at least two temperature intervals are obtained by dividing the allowable working temperature range of the photoelectric detector.
In the above scheme, the method further comprises:
determining a first optical power in each of at least two optical power intervals;
wherein the at least two optical power intervals are obtained by dividing the allowable working optical power range of the photoelectric detector.
In the above scheme, the method further comprises:
the first set of parameters is stored in a memory of the photodetector.
An embodiment of the present invention further provides an optical power detection apparatus, including:
a first determination unit for determining a first current and a first temperature; the first current is used for representing the detection result of the photoelectric detector; the first temperature is characteristic of the working temperature of the photoelectric detector;
a second determining unit for determining a second parameter set according to the first temperature and the first parameter set; parameters in the second set of parameters characterize an effect of the first temperature on the photodetector; the parameters in the first parameter set represent the corresponding relation between the temperature value of the first temperature and the parameter values of the parameters in the second parameter set;
and the third determining unit is used for determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current.
The embodiment of the present invention further provides a parameter calibration apparatus, including:
a fourth determining unit, configured to determine a corresponding second current based on at least two first optical powers corresponding to each of the at least two second temperatures; wherein the first optical power is characteristic of an input optical power of the photodetector; the second current represents the corresponding output current of the photoelectric detector working at the corresponding second temperature when the corresponding first optical power is input;
a fifth determining unit, configured to determine, based on the determined second current and the first optical power, a third parameter set corresponding to each of the at least two second temperatures through a setting algorithm; parameters in the third parameter set characterize the effect of the corresponding second temperature on the photodetector;
the fitting unit is used for fitting each parameter in all the third parameter sets based on the third parameter sets corresponding to all the second temperatures in the at least two second temperatures, and determining a fitting result corresponding to each parameter in all the third parameter sets; and outputting the fitting results corresponding to all the parameters as a first parameter set.
An embodiment of the present invention further provides an electronic device, including: a first processor and a first memory for storing a computer program capable of running on the processor,
wherein the first processor is configured to execute the steps of the optical power detection method when the computer program is executed.
An embodiment of the present invention further provides an electronic device, including: a second processor and a second memory for storing a computer program capable of running on the processor,
and the second processor is used for executing the steps of the parameter calibration method when the computer program is run.
The embodiment of the present application further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the optical power detection method or implements the steps of the parameter calibration method.
The method, the device, the electronic equipment and the storage medium for detecting the optical power and calibrating the parameters determine a first current representing the output current of a photoelectric detector and a first temperature representing the working temperature of the photoelectric detector; determining a second parameter set according to the first temperature and the first parameter set; wherein a parameter in the second set of parameters characterizes an effect of the first temperature on the photodetector; the parameters in the first parameter set characterize a correspondence of temperature to parameter values of the parameters in the second parameter set; and determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current. Therefore, the influence of the current working temperature on the optical power detection result of the photoelectric detector can be determined by determining the working temperature, so that the influence of thermal noise in the optical power detection result can be eliminated, and the accuracy of the optical power detection result is improved.
Drawings
Fig. 1 is a schematic structural diagram of a conventional photodetector;
fig. 2 is a schematic flow chart illustrating an implementation of an optical power detection method according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a photodetector according to an embodiment of the present application;
fig. 4 is a schematic flow chart illustrating an implementation of a parameter calibration method according to an embodiment of the present application;
fig. 5 is a schematic flow chart illustrating an implementation process of determining a corresponding second current for each second temperature according to an embodiment of the present application;
fig. 6 is a schematic flow chart illustrating an implementation process of determining a third parameter set corresponding to each second temperature according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an optical power detection apparatus according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of a parameter calibration apparatus provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application
Fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present application
Detailed Description
In the field of optical communications, an optical power indicator is an important indicator, and thus, detection of optical power is an indispensable and important position in the entire optical transmission system. At present, a coupler is mainly used for optical power detection to divide a monitored optical power into a PIN photodiode or an Avalanche Photodiode (APD), so that conversion from the optical power to current is realized, and then the optical power value of the power to be detected is obtained through current-voltage conversion, an amplifying circuit and analog-digital conversion sampling and finally calculation.
With the global mass use of optical communication systems, the installation environment of optical communication equipment is more and more complex, including indoor constant-temperature air-conditioning rooms, air-conditioning-free indoor rooms, outdoor special installation rooms, even outdoor direct pole-holding installation and the like. Different installation environments cause drastic changes in the operating temperature of optical communication equipment.
As shown in fig. 1, a schematic structure of a conventional photo detector is that a PIN photo diode detector detects input optical power, outputs an ADC current value after photoelectric conversion and digital-to-analog conversion of an amplifier and an analog-to-digital converter, and determines an optical power detection result based on the ADC current value.
Under different use environments, thermal noise may be introduced into each detection link of optical power detection, and the thermal noise includes dark current variation introduced by a PIN photodiode detector along with temperature variation, thermal noise introduced by current-voltage conversion and amplification, thermal noise introduced by an analog-to-digital converter, and the like, and the thermal noise is superimposed on an optical power detection result, so that the obtained optical power detection result is inaccurate.
Based on this, in various embodiments of the present application, a first current and a first temperature are determined; the first current is characteristic of the output current of the photoelectric detector; the first temperature is indicative of an operating temperature of the photodetector; determining a second parameter set according to the first temperature and the first parameter set; a parameter in the second set of parameters characterizes an effect of the first temperature on the photodetector; the parameters in the first parameter set characterize a correspondence of temperature to parameter values of the parameters in the second parameter set; and determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current. Therefore, the working temperature is determined by a calibration method, the influence of the current working temperature on the optical power detection result of the photoelectric detector can be determined, the influence of thermal noise in the optical power detection result can be eliminated, and the accuracy of the optical power detection result is improved.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Fig. 2 is a schematic view of an implementation process of the optical power detection method according to the embodiment of the present application, where an execution subject of the process is a photodetector, and may also be an electronic device independent of the photodetector. As shown in fig. 2, the optical power detection method includes:
step 201: determining a first current and a first temperature; the first current is characteristic of the output current of the photoelectric detector; the first temperature is indicative of an operating temperature of the photodetector.
In the present embodiment, as shown in fig. 3, a schematic structural diagram of a photodetector is shown, a temperature sensor is arranged on an integral functional unit of a PIN detector, a detection conversion, an amplification and an analog-to-digital converter of the photodetector, and the method obtains the first current PdBm_ADCAnd meanwhile, the first temperature T of the whole functional unit can be acquired simultaneously, so that the acquired first current and the real-time working temperature have a corresponding relation, and the detected first current contains the influence of thermal noise brought by the PIN detector, the detection conversion, the amplification and the analog-to-digital converter, wherein the thermal noise is related to the ambient temperature.
The temperature sensors are arranged on the whole functional units of the PIN detector, the detection conversion, the amplification and the analog-to-digital converter of the photoelectric detector, and when the processor acquires the output current, namely the first current, of the amplification and analog-to-digital converter in the photoelectric detector, the real-time working temperature, namely the first temperature, can be acquired through the temperature sensors at the same time.
Step 202: determining a second parameter set according to the first temperature and the first parameter set; a parameter in the second set of parameters characterizes an effect of the first temperature on the photodetector; the parameters in the first parameter set characterize a correspondence of temperatures to parameter values of the parameters in the second parameter set.
In this embodiment, the parameters of the first parameter set include: n is a radical ofFactorSlope K ofN_FactorAnd intercept BN_Factor(ii) a Slope K of slope KKAnd intercept BK(ii) a Slope K of intercept BBAnd intercept BB(ii) a Characterizing temperature and parameter N, respectivelyFactorTemperature to parameter K and temperature to parameter B. The parameters of the first set of parameters are pre-calibrated by determining N at least two temperaturesFactorK and B, from which the temperature and the parameter N are determinedFactorTemperature to parameter K and temperature to parameter B. The first parameter set is determined in detail in the parameter markExamples of the methods are defined.
According to the following mode, a second parameter set N of the real-time working temperature is calculated according to the following formula (1) through the working temperature of the photoelectric detector and a first parameter set comprising the fitting result of the temperature and all parametersFactor[T]、K[T]、B[T]Denotes N at real-time operating temperatureFactorValue, K value and B value.
NFactor[T]＝KN_Factor×T+BN_Factor
K[T]＝KK×T+BK
B[T]＝KB×T+BB (1)
In an embodiment, the method further comprises:
a first set of parameters is recalled from a memory of the photodetector.
Here, the first parameter set is stored in advance in the memory of the photodetector, and when the optical power is detected, the first parameter set stored in advance is directly recalled from the memory of the photodetector, so that the detection efficiency of the optical power can be improved.
Step 203: and determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current.
In this embodiment, the optical power detection result can be calculated according to the following formula (2) by using the first current detected by the photodetector and the second parameter set at the first temperature:
the optical power results directly from the first current include thermal noise introduced by temperature changes; the thermal noise is strongly correlated with the temperature, and the relationship between the thermal noise and the temperature is calibrated, so that the thermal noise at the temperature is subtracted by the above method to obtain an optical power detection result, the thermal noise interference at the temperature can be eliminated, an actual optical power detection result is obtained, and the accuracy of the optical power detection result is improved.
Fig. 4 is a schematic flow chart of an implementation of a parameter calibration method provided in the embodiment of the present application, and as shown in fig. 4, the parameter calibration method includes:
step 401: determining a corresponding second current based on at least two first optical powers corresponding to each of the at least two second temperatures; wherein the first optical power is characteristic of an input optical power of the photodetector; the second current represents a corresponding output current of the photodetector operating at a corresponding second temperature when the corresponding first optical power is input.
In this embodiment, at least two second temperatures, second currents corresponding to at least two first optical powers at each second temperature are determined. Here, the input optical power of the photodetector is sequentially adjusted to at least two first optical powers, and the at least two first optical powers P are adjusteddBm_Actual[i]Respectively inputting the first current P to PIN detectors of the photodetectors to obtain a second current P corresponding to each input optical power at each second temperaturedBm_ADC[i]。
In an embodiment, the method further comprises:
determining a second temperature in each of the at least two temperature intervals;
wherein the at least two temperature intervals are obtained by dividing an allowable working temperature range of the photodetector.
The allowable operating temperature range of the photoelectric detector is divided into at least two temperature intervals, and a second temperature is determined in each of the at least two temperature intervals.
Illustratively, the common working temperature range of the photodetector, which is from-5 ℃ to 55 ℃, can be divided into three temperature ranges, namely, a low temperature range from-5 ℃ to 10 ℃, a room temperature range from 10 ℃ to 35 ℃ and a high temperature range from 35 ℃ to 55 ℃, according to requirements, and the three temperatures, namely, 5 ℃, 25 ℃ and 50 ℃, are correspondingly selected as the second temperature.
Here, the operating temperature range is divided into at least two temperature intervals, and a second temperature is determined in each of the at least two temperature intervals, so that the parameter obtained by calibration is better represented in the operating temperature range.
In an embodiment, the method further comprises:
determining a first optical power in each of at least two optical power intervals;
wherein the at least two optical power intervals are obtained by dividing an allowable working optical power range of the photodetector.
Here, the range of operating optical power allowed for the photodetector is divided. Because the input optical power of the photoelectric detector has a working optical power range, the allowable working optical power range, namely the range between the maximum optical power and the minimum optical power, is divided into at least two optical power intervals, and a first optical power is determined in each optical power interval of the at least two optical power intervals.
In practical application, the allowable working optical power range can be divided into four optical power intervals according to requirements, the maximum optical power and the minimum optical power are selected, two optical powers are selected between the maximum optical power and the minimum optical power, the four optical power values are made to be an arithmetic series, and the four optical powers are used as first optical powers to determine corresponding second currents.
The maximum optical power, the minimum optical power and two optical powers between the maximum optical power and the minimum optical power are selected, and the four selected optical powers are in an arithmetic progression, so that the representativeness of the calibrated parameters in the working optical power range is better.
In practical applications, four corresponding first optical powers are selected at each second temperature, and the corresponding second currents are sequentially determined, which may be as shown in fig. 5.
Step 1: the counting variable i is 0;
step 2: step-by-step variation of power
Wherein, PdBm_MAXIs the maximum power value of the power detection range, in dBm; pdBm_MINIs the minimum power value of the power detection range, in dBm;
and step 3: cyclically adjusting the first optical power PdBm_Actual[i]＝PdBm_MIN+ Step × i; obtaining and recording the second current PdBm_ADC[i]；
And 4, step 4: counting variable i ═ i + 1;
and 5: repeating the steps 3 to 4 until i is greater than 3, and ending the process.
Through steps 1 to 5, four uniformly spaced second currents corresponding to the first optical power can be sequentially determined.
During practical application, the photoelectric detector can be placed in the high-low temperature circulating test box, the high-low temperature circulating test box is arranged under corresponding temperature environments respectively, when the high-low temperature circulating test box is stabilized at each second temperature of at least two second temperatures, at least two first optical powers are input into the PIN detector of the photoelectric detector respectively, and second currents corresponding to the first optical powers are obtained.
By using the high-low temperature circulating test box, the working temperature during detection can be stabilized at the set second temperature, so that errors caused by fluctuation of the detection temperature can be improved, and the calibration result obtained by the parameter calibration method is more accurate.
Step 402: determining a third parameter set corresponding to each of the at least two second temperatures through a setting algorithm based on the determined second current and the first optical power; parameters in the third parameter set characterize an effect of the corresponding second temperature on the photodetector.
In the present embodiment, a thermal noise factor N is assumedFactor0, at each of the at least two second temperatures, at least two first optical powers P are determined according to step 401dBm_Actual[i]Each second current P corresponding to each first optical powerdBm_ADC[i]And assigned as follows:
X[i]＝PdBm_ADC[i]
logarithmic sequence Y [ i ]]And X [ i ]]Linear fitting is performed and a linear fitting correlation coefficient R is calculated as the following formula (3)2：
By continuously accumulating NFactorCalculation of R2Let R be2When the distance is closest to 1, stop NFactorAdding up to determine NFactorAnd recording the corresponding N at the second temperatureFactorLinear fit slope K values and intercept B values. The third set of parameters corresponding to the second temperature comprises N at the second temperatureFactorK value and B value.
Similarly, a third set of parameters may be obtained for each of the at least two second temperatures.
In an embodiment, determining, by a setting algorithm, a third parameter set corresponding to each of the at least two second temperatures based on the determined second current and the first optical power includes:
determining a first parameter corresponding to the second temperature; the first parameter characterizes the effect of the corresponding second temperature on the photodetector;
determining a second parameter and a third parameter corresponding to the second temperature; the second parameter represents a linear fitting slope corresponding to the first parameter; the third parameter represents a linear fitting intercept corresponding to the first parameter.
Here, a third set of parameters corresponding to each of the at least two second temperatures is derived from the linear fit.
The third set of parameters for each second temperature includes:
first parameter N corresponding to second temperatureFactorCharacterizing an effect of the corresponding second temperature on the photodetector;
a second parameter K value corresponding to the second temperature represents the slope of the linear fitting relation corresponding to the first parameter;
and the third parameter B value corresponding to the second temperature represents the intercept of the linear fitting relation corresponding to the first parameter.
Here, the third parameter set corresponding to each of the at least two second temperatures is determined by a setting algorithm based on the determined second current and the first optical power, in a manner illustrated in fig. 6:
step 1: n is a radical ofFactor＝0,i＝0,j＝0；
Step 2: j is j + 1;
and step 3: i is 0 to 3, Y [ i ] and X [ i ] are calculated according to the above manner;
and 4, step 4: for Y [ i ]]And X [ i ]]Linear fitting is performed and R is calculated according to the formula (3)2[j]；
And 5: n is a radical ofFactor＝NFactor+1；
Step 6: repeating steps 2 to 5 until R2[j]-R2[j-1]<0；
And 7: n is a radical ofFactor＝NFactor-1, recording the thermal noise correction factor NFactorAnd the linear fitting slope K value and intercept B value at this time, the flow ends.
Step 403: fitting each parameter in all third parameter sets based on the third parameter sets corresponding to all second temperatures in the at least two second temperatures, and determining a fitting result corresponding to each parameter in all third parameter sets; and outputting the fitting results corresponding to all the parameters as the first parameter set.
In this embodiment, based on the third parameter sets corresponding to all of the at least two second temperatures determined before, the relationship between the temperature and each parameter in all of the third parameter sets is fitted, so as to obtain a fitting result corresponding to each parameter in all of the third parameter sets, and the fitting result is output as the first parameter set.
Wherein the parameters of the third parameter set comprise NFactorAnd slope K value and intercept B value, for temperature and parameter N of the third parameter set, respectivelyFactorK and B are fitted, and the fitting result is output as a first parameter set.
For example, for a parameter N whose temperature corresponds to all of the at least two second temperaturesFactorLinear fitting is carried out to obtain a slope KN_FactorAnd intercept BN_Factor(ii) a Linearly fitting the temperature and the parameter K corresponding to all the second temperatures in the at least two second temperatures to obtain the slope KKAnd intercept BK(ii) a Linearly fitting the temperature and the parameters B corresponding to all the second temperatures in the at least two second temperatures to obtain a slope KBAnd intercept BB(ii) a And the slope KN_FactorAnd intercept BN_FactorSlope KKAnd intercept BKAnd slope KBAnd intercept BBThe output is the first parameter set.
In an embodiment, the method further comprises:
storing the first set of parameters into a memory of the photodetector.
Here, the first parameter set of the output is stored in a memory of the photodetector to be directly called upon in a subsequent detection of optical power by the photodetector.
In order to implement the method according to the embodiment of the present application, an embodiment of the present application further provides an optical power detection apparatus, as shown in fig. 7, the optical power detection apparatus includes:
a first determination unit 701 for determining a first current and a first temperature; the first current is used for representing the detection result of the photoelectric detector; the first temperature is indicative of an operating temperature of the photodetector;
a second determining unit 702, configured to determine a second parameter set according to the first temperature and the first parameter set; a parameter in the second set of parameters characterizes an effect of the first temperature on the photodetector; parameters in the first parameter set characterize a correspondence of temperature values of the first temperature to parameter values of parameters in the second parameter set;
a third determining unit 703, configured to determine an optical power detection result of the photodetector according to the second parameter set and the first current.
In an embodiment, the optical power detection apparatus further includes:
a calling unit for calling the first parameter set from a memory of the photodetector.
In practical applications, the first determining Unit 701, the second determining Unit 702, the third determining Unit 703 and the invoking Unit may be implemented by a Processor in an electronic device, such as a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU) or a Programmable Gate Array (FPGA).
It should be noted that: in the optical power detection apparatus provided in the above embodiment, when performing optical power detection, the parameter calibration apparatus performs parameter calibration, which is only illustrated by dividing the program modules, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules, so as to complete all or part of the processing described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
In order to implement the method according to the embodiment of the present application, an embodiment of the present application further provides a parameter calibration apparatus, as shown in fig. 8, the parameter calibration apparatus includes:
a fourth determining unit 801, configured to determine a corresponding second current based on at least two first optical powers corresponding to each of the at least two second temperatures; wherein the first optical power is characteristic of an input optical power of the photodetector; the second current represents the corresponding output current of the photoelectric detector working at the corresponding second temperature when the corresponding first optical power is input;
a fifth determining unit 802, configured to determine, based on the determined second current and the first optical power, a third parameter set corresponding to each of the at least two second temperatures through a setting algorithm; parameters in the third parameter set characterize an effect of the corresponding second temperature on the photodetector;
a fitting unit 803, configured to fit each parameter in all third parameter sets based on the third parameter sets corresponding to all second temperatures in the at least two second temperatures, and determine a fitting result corresponding to each parameter in all third parameter sets; and outputting the fitting results corresponding to all the parameters as the first parameter set.
Wherein, in one embodiment, the apparatus further comprises: a sixth determination unit configured to:
determining a second temperature in each of the at least two temperature intervals;
wherein the at least two temperature intervals are obtained by dividing an allowable working temperature range of the photodetector.
Wherein, in one embodiment, the apparatus further comprises: a seventh determining unit configured to:
determining a first optical power in each of at least two optical power intervals;
wherein the at least two optical power intervals are obtained by dividing an allowable working optical power range of the photodetector.
In an embodiment, the fifth determining unit 802 is configured to:
determining a first parameter corresponding to the second temperature; the first parameter characterizes the effect of the corresponding second temperature on the photodetector;
determining a second parameter and a third parameter corresponding to the second temperature; the second parameter represents a linear fitting slope corresponding to the first parameter; the third parameter represents a linear fitting intercept corresponding to the first parameter.
In an embodiment, the parameter calibration apparatus further includes:
a storage unit to store the first set of parameters into a memory of the photodetector.
In practical applications, the fourth determining Unit 801, the fifth determining Unit 802, the fitting Unit 803, the sixth determining Unit, the seventh determining Unit, and the storage Unit may be implemented by a Processor in an electronic device, such as a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA).
It should be noted that: in the optical power detection apparatus provided in the above embodiment, when performing optical power detection, the parameter calibration apparatus performs parameter calibration, which is only illustrated by dividing the program modules, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules, so as to complete all or part of the processing described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
Based on the hardware implementation of the program module, and in order to implement the parameter calibration method according to the embodiment of the present application, an embodiment of the present application further provides an electronic device. Fig. 9 is a schematic diagram of a hardware component structure of an electronic device according to an embodiment of the present application, and as shown in fig. 9, the electronic device 900 includes:
a first communication interface 910 capable of information interaction with other devices such as network devices;
the first processor 920 is connected to the first communication interface 910 to implement information interaction with other devices, and is configured to execute the parameter calibration method provided by one or more of the above technical solutions when running a computer program. And the computer program is stored on the first memory 930.
The first memory 930 in the embodiments of the present application is used for storing various types of data to support the operation of the electronic device 900, examples of which include: any computer program for operating on the electronic device 900.
Of course, in practice, the various components in the electronic device 900 are coupled together by a bus system 940. It is understood that the bus system 940 is used to enable connected communication between these components. The bus system 940 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 940 in fig. 9.
It will be appreciated that the first memory 930 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The first memory 930 described in embodiments herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed in the embodiment of the present application may be applied to the first processor 920, or implemented by the first processor 920. The first processor 920 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method may be performed by integrated logic circuits of hardware or instructions in the form of software in the first processor 920. The first processor 920 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The first processor 920 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the first memory 930, and the first processor 920 reads the program in the first memory 930 and performs the steps of the aforementioned method in conjunction with its hardware.
Optionally, when the first processor 920 executes the program, the corresponding processes implemented in the methods of the embodiments of the present application are implemented, and for brevity, are not described again here.
Based on the hardware implementation of the program module, in order to implement the optical power detection method according to the embodiment of the present application, an embodiment of the present application further provides an electronic device. Fig. 10 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application, and as shown in fig. 10, the electronic device 1000 includes:
a second communication interface 1010 capable of performing information interaction with other devices such as network devices;
the second processor 1020 is connected to the second communication interface 1010 to implement information interaction with other devices, and is configured to execute the optical power detection method provided by one or more of the above technical solutions when running a computer program. And the computer program is stored on the second memory 1030.
The second memory 1030 in the embodiment of the present application is used for storing various types of data to support the operation of the electronic device 1000, and examples of the data include: any computer program for operating on the electronic device 1000.
Of course, in practice, the various components in the electronic device 1000 are coupled together by a bus system 1040. It is understood that the bus system 1040 is used to enable connected communication between these components. The bus system 1040 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as the bus system 1040 in fig. 10.
It will be appreciated that the second memory 1030 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The second memory 1030 described in embodiments herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed in the embodiments of the present application may be applied to the second processor 1020, or implemented by the second processor 1020. The second processor 1020 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the second processor 1020. The second processor 1020 may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 1020 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the second memory 1030, and the second processor 1020 reads the programs in the second memory 1030 and, in conjunction with its hardware, performs the steps of the aforementioned methods.
Optionally, when the second processor 1020 executes the program, the corresponding processes implemented in the methods of the embodiments of the present application are implemented, and for brevity, are not described again here.
In an exemplary embodiment, the present application further provides a storage medium, specifically a computer-readable storage medium, for example, a first memory 930 and a second memory 1030 storing computer programs, where the computer programs may be executed by the first processor 920 and the second processor 1020 of the electronic device, respectively, to complete the steps of the foregoing optical power detection method or parameter calibration method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, electronic device and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
Alternatively, the integrated units described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or portions thereof contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The technical means described in the embodiments of the present application may be arbitrarily combined without conflict.
In addition, in the examples of the present application, "first", "second", and the like are used for distinguishing similar objects, and are not necessarily used for describing a specific order or a sequential order.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Various combinations of the specific features in the embodiments described in the detailed description may be made without contradiction, for example, different embodiments may be formed by different combinations of the specific features, and in order to avoid unnecessary repetition, various possible combinations of the specific features in the present application will not be described separately.
Claims (12)
1. An optical power detection method, comprising:
determining a first current and a first temperature; the first current is characteristic of the output current of the photoelectric detector; the first temperature is indicative of an operating temperature of the photodetector;
determining a second parameter set according to the first temperature and the first parameter set; a parameter in the second set of parameters characterizes an effect of the first temperature on the photodetector; the parameters in the first parameter set characterize a correspondence of temperature to parameter values of the parameters in the second parameter set;
and determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current.
2. The method of claim 1, further comprising:
the first set of parameters is recalled from a memory of the photodetector.
3. A parameter calibration method for calibrating the first parameter set in the optical power detection method according to claim 1 or 2; the method comprises the following steps:
determining a corresponding second current based on at least two first optical powers corresponding to each of the at least two second temperatures; wherein the first optical power is characteristic of an input optical power of the photodetector; the second current represents the corresponding output current of the photoelectric detector working at the corresponding second temperature when the corresponding first optical power is input;
determining a third parameter set corresponding to each of the at least two second temperatures through a setting algorithm based on the determined second current and the first optical power; parameters in the third parameter set characterize an effect of the corresponding second temperature on the photodetector;
fitting each parameter in all third parameter sets based on the third parameter sets corresponding to all second temperatures in the at least two second temperatures, and determining a fitting result corresponding to each parameter in all third parameter sets; and outputting the fitting results corresponding to all the parameters as the first parameter set.
4. The parameter calibration method according to claim 3, wherein the determining, based on the determined second current and the first optical power, a third parameter set corresponding to each of the at least two second temperatures by a setting algorithm includes:
determining a first parameter corresponding to the second temperature; the first parameter characterizes an effect of the corresponding second temperature on the photodetector;
determining a second parameter and a third parameter corresponding to the second temperature; the second parameter is used for representing a linear fitting slope corresponding to the first parameter; the third parameter characterizes a linear fitting intercept corresponding to the first parameter.
5. A method for parameter calibration according to claim 3 or 4, wherein the method further comprises:
determining a second temperature in each of the at least two temperature intervals;
wherein the at least two temperature intervals are obtained by dividing an allowable working temperature range of the photodetector.
6. A method for parameter calibration according to claim 3 or 4, wherein the method further comprises:
determining a first optical power in each of at least two optical power intervals;
wherein the at least two optical power intervals are obtained by dividing an allowable working optical power range of the photodetector.
7. A method for parameter calibration according to claim 3, wherein the method further comprises:
storing the first set of parameters into a memory of the photodetector.
8. An optical power detection apparatus, comprising:
a first determination unit for determining a first current and a first temperature; the first current is used for representing the detection result of the photoelectric detector; the first temperature is indicative of an operating temperature of the photodetector;
a second determining unit, configured to determine a second parameter set according to the first temperature and the first parameter set; a parameter in the second set of parameters characterizes an effect of the first temperature on the photodetector; parameters in the first parameter set characterize a correspondence of temperature values of the first temperature to parameter values of parameters in the second parameter set;
and the third determining unit is used for determining the optical power detection result of the photoelectric detector according to the second parameter set and the first current.
9. A parameter calibration apparatus, comprising:
a fourth determining unit, configured to determine a corresponding second current based on at least two first optical powers corresponding to each of the at least two second temperatures; wherein the first optical power is characteristic of an input optical power of the photodetector; the second current represents the corresponding output current of the photoelectric detector working at the corresponding second temperature when the corresponding first optical power is input;
a fifth determining unit, configured to determine, based on the determined second current and the first optical power, a third parameter set corresponding to each of the at least two second temperatures through a setting algorithm; parameters in the third parameter set characterize an effect of the corresponding second temperature on the photodetector;
the fitting unit is used for fitting each parameter in all the third parameter sets based on the third parameter sets corresponding to all the second temperatures in the at least two second temperatures, and determining a fitting result corresponding to each parameter in all the third parameter sets; and outputting the fitting results corresponding to all the parameters as the first parameter set.
10. An electronic device, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,
wherein the first processor is configured to execute the steps of the optical power detection method according to claim 1 or 2 when running the computer program.
11. An electronic device, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,
wherein the second processor is configured to execute the steps of the parameter calibration method according to any one of claims 3 to 8 when running the computer program.
12. A storage medium having stored thereon a computer program, wherein the computer program, when being executed by a processor, is adapted to carry out the steps of the optical power detection method of any one of claims 1 to 3 or the steps of the parameter calibration method of any one of claims 4 to 8.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329278A (en) * | 2021-05-24 | 2021-08-31 | 武汉光迅科技股份有限公司 | Light source channel switching module, power adjusting device and power calibration method |
| CN113438021A (en) * | 2021-07-28 | 2021-09-24 | 武汉光迅科技股份有限公司 | Calibration method and device for optical power detection, electronic device and storage medium |
| CN113686433A (en) * | 2021-08-23 | 2021-11-23 | 长飞光纤光缆股份有限公司 | Photoelectric detector and erbium-doped optical fiber amplifier based on dark current compensation |
| CN113686434A (en) * | 2021-08-23 | 2021-11-23 | 长飞光纤光缆股份有限公司 | Temperature simulation compensation method and system for photoelectric detection device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183032A (en) * | 2007-12-14 | 2008-05-21 | 北京航空航天大学 | Temperature simple calibrating method suitable for reflection-type polarization-preserving fiber temperature sensor |
| CN102299470A (en) * | 2011-07-15 | 2011-12-28 | 武汉光迅科技股份有限公司 | Temperature compensation method for Er-doped optical fiber superfluorescence (SFS) light source pumping laser and device thereof |
| CN103207033A (en) * | 2013-04-22 | 2013-07-17 | 中国人民解放军国防科学技术大学 | Distributed fiber sensing method and device for simultaneously measuring temperature and strain |
| CN104821845A (en) * | 2015-05-13 | 2015-08-05 | 四川华拓光通信股份有限公司 | Method for calibrating luminous power of receiving end of optical module |
| CN106330296A (en) * | 2016-08-31 | 2017-01-11 | 无锡市电子仪表工业有限公司 | Method for calibrating, compensating and self-correcting parameters of optical module |
| CN107483111A (en) * | 2017-06-27 | 2017-12-15 | 青岛海信宽带多媒体技术有限公司 | A kind of calibration method and device of the optical module transmitting luminous power based on temperature |
| CN107659359A (en) * | 2017-09-15 | 2018-02-02 | 武汉光迅科技股份有限公司 | Optical module and its control circuit and method |
| EP3306836A1 (en) * | 2016-10-10 | 2018-04-11 | Juniper Networks, Inc. | Integrated wavelength locker |
| CN109327258A (en) * | 2018-11-01 | 2019-02-12 | 深圳市亚派光电器件有限公司 | Calibration method, device and the readable storage medium storing program for executing of optical module receiving end optical power |
-
2020
- 2020-08-14 CN CN202010821038.0A patent/CN112104417B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183032A (en) * | 2007-12-14 | 2008-05-21 | 北京航空航天大学 | Temperature simple calibrating method suitable for reflection-type polarization-preserving fiber temperature sensor |
| CN102299470A (en) * | 2011-07-15 | 2011-12-28 | 武汉光迅科技股份有限公司 | Temperature compensation method for Er-doped optical fiber superfluorescence (SFS) light source pumping laser and device thereof |
| CN103207033A (en) * | 2013-04-22 | 2013-07-17 | 中国人民解放军国防科学技术大学 | Distributed fiber sensing method and device for simultaneously measuring temperature and strain |
| CN104821845A (en) * | 2015-05-13 | 2015-08-05 | 四川华拓光通信股份有限公司 | Method for calibrating luminous power of receiving end of optical module |
| CN106330296A (en) * | 2016-08-31 | 2017-01-11 | 无锡市电子仪表工业有限公司 | Method for calibrating, compensating and self-correcting parameters of optical module |
| EP3306836A1 (en) * | 2016-10-10 | 2018-04-11 | Juniper Networks, Inc. | Integrated wavelength locker |
| CN107483111A (en) * | 2017-06-27 | 2017-12-15 | 青岛海信宽带多媒体技术有限公司 | A kind of calibration method and device of the optical module transmitting luminous power based on temperature |
| CN107659359A (en) * | 2017-09-15 | 2018-02-02 | 武汉光迅科技股份有限公司 | Optical module and its control circuit and method |
| CN109327258A (en) * | 2018-11-01 | 2019-02-12 | 深圳市亚派光电器件有限公司 | Calibration method, device and the readable storage medium storing program for executing of optical module receiving end optical power |
Non-Patent Citations (1)
| Title |
|---|
| 王燕: "光电探测器特性在TDLAS气体检测中的影响", 《光学学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329278A (en) * | 2021-05-24 | 2021-08-31 | 武汉光迅科技股份有限公司 | Light source channel switching module, power adjusting device and power calibration method |
| CN113329278B (en) * | 2021-05-24 | 2022-07-05 | 武汉光迅科技股份有限公司 | Light source channel switching module, power adjusting device and power calibration method |
| CN113438021A (en) * | 2021-07-28 | 2021-09-24 | 武汉光迅科技股份有限公司 | Calibration method and device for optical power detection, electronic device and storage medium |
| CN113438021B (en) * | 2021-07-28 | 2022-09-09 | 武汉光迅科技股份有限公司 | Calibration method and device for optical power detection, electronic device and storage medium |
| CN113686433A (en) * | 2021-08-23 | 2021-11-23 | 长飞光纤光缆股份有限公司 | Photoelectric detector and erbium-doped optical fiber amplifier based on dark current compensation |
| CN113686434A (en) * | 2021-08-23 | 2021-11-23 | 长飞光纤光缆股份有限公司 | Temperature simulation compensation method and system for photoelectric detection device |
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