Laser monitoring method, device and equipment

Abstract

The invention relates to the technical field of lasers, discloses a laser monitoring method, device and equipment, and is used for solving the problems that in the related technology, laser detection is lack of accuracy, and the loss of an optical fiber link is increased due to the fact that an external hardware detection device needs to be connected. The method comprises the following steps: firstly, determining that the output power ratio of a laser is a rated ratio, then determining influence factors according to different environment temperatures and respective corresponding device temperatures and output powers, and then determining whether the efficiency of the laser is reduced or not according to the influence factors of the laser; the theoretical service life and the actual service life of the laser are determined, the service life state of the laser is determined according to the difference value between the theoretical service life and the actual service life, so that abnormity of the laser is found in advance, the laser is maintained and replaced according to specific conditions, the method is simple and convenient, and additional devices do not need to be added.

Description

Technical Field

[0001] The present application relates to the field of laser technology, and in particular to a method, device and equipment for monitoring a laser. Background Art

[0002] At present, CPO (Co-packaged optics) switches have great advantages in integration and energy consumption compared to traditional switches, but face huge challenges in the protection of their lasers and the management of optical fiber links.

[0003] There are currently three solutions for CPO switch laser design, and the mainstream solution is to put the laser on the panel. Placing the laser on the panel requires additional link loss, which means that the laser power needs to be increased. When the laser power is increased, if there is dust contamination in the laser link, when the laser is turned on, the contaminated part of the laser link will produce a large reflection, generating a lot of heat and causing the contaminated part of the laser link to burn. For CPO switches, if the laser fails, the entire service will be suspended. Therefore, it is very important to monitor the optical fiber link of the laser.

[0004] In the related art, the monitoring of lasers includes the following schemes:

[0005] (1) Convert the light energy output by the laser into electrical energy, collect the input light energy and output voltage to calculate the conversion efficiency and determine whether the optical fiber link of the laser is abnormal.

[0006] However, this solution is computationally cumbersome.

[0007] (ii) Add a photodetector between the laser transmitter and the switch receiver. Use the photodetector to monitor the optical power at the transmitter and then compare it with the threshold to determine whether the laser's optical fiber link is abnormal.

[0008] However, in this solution, the hardware detection device increases the loss and design difficulty of the optical fiber link, and also increases the size of the laser.

[0009] In summary, how to monitor lasers efficiently and accurately is an urgent problem to be solved. Summary of the invention

[0010] The purpose of this application is to provide a laser monitoring method, device and equipment to solve the problem of lack of accuracy in laser detection in related technologies and the need for external hardware detection devices, which leads to increased optical fiber link loss.

[0011] In a first aspect, the present application provides a method for monitoring a laser, the method comprising:

[0012] After determining that the output power ratio of the laser is the rated ratio, respectively obtaining the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature;

[0013] Based on the first ambient temperature and the second ambient temperature, and the respective corresponding device temperatures and output powers, an influence factor is obtained; the influence factor is used to characterize the influence of the ambient temperature on the device temperature and output power of the laser;

[0014] The influencing factor is compared with a preset influencing factor; if the influencing factor comparison result indicates that the efficiency of the laser is reduced, then determining the theoretical service life of the laser when the device temperature is the theoretical temperature and the actual service life of the laser when the device temperature is the abnormal temperature under the condition that the temperature of the laser working environment is a fixed ambient temperature;

[0015] The service life state of the laser is determined according to the difference between the theoretical service life and the actual service life.

[0016] In a possible implementation manner, before determining that the output power ratio of the laser is the rated ratio, the method further includes:

[0017] Controlling the output power ratio of the laser to be a preset ratio;

[0018] Comparing the output power of the preset ratio with the receiving power of the receiving end of the switch;

[0019] If the difference between the output power of the preset ratio and the received power of the switch receiving end is within the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser is within the normal loss range, and the output power ratio of the laser is controlled to be the rated ratio.

[0020] In a possible implementation, the method further includes:

[0021] If the difference between the output power of the preset ratio and the received power at the receiving end of the switch exceeds the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser exceeds the normal loss range, and an optical fiber link abnormality signal is issued to prompt the user to check the optical fiber link of the laser.

[0022] In a possible implementation manner, an initial device temperature and an initial output power of the laser correspond to the first ambient temperature, and a second device temperature and a second output power of the laser correspond to the second ambient temperature;

[0023] Then, the influencing factor is obtained based on the first ambient temperature and the second ambient temperature, and the respective corresponding device temperatures and output powers, including:

[0024] subtracting a difference between the second device temperature and the initial device temperature from a difference between the second ambient temperature and the first ambient temperature to obtain a temperature influencing variable;

[0025] Subtracting the second output power from the initial output power to obtain a power influencing variable;

[0026] The ratio of the temperature influencing variable to the power influencing variable is used as the influencing factor.

[0027] In a possible implementation manner, the impact factor comparison result is determined in the following manner:

[0028] If the impact factor is greater than the preset impact factor, determining that the impact factor comparison result represents a decrease in the efficiency of the laser;

[0029] If the impact factor is less than the preset impact factor, it is determined that the impact factor comparison result represents that the efficiency of the laser is within a normal fluctuation range.

[0030] In a possible implementation manner, determining the service life state of the laser according to the difference between the theoretical service life and the actual service life includes:

[0031] If the difference between the theoretical service life and the actual service life is greater than a preset service life loss threshold, the output power ratio is reduced so that the device temperature of the laser is within a preset device temperature range;

[0032] If the difference between the theoretical service life and the actual service life is not greater than a preset service life loss threshold, it is determined that the service life of the laser is within a normal loss range.

[0033] In a possible implementation manner, after reducing the output power ratio, if the device temperature of the laser is within a preset device temperature range, the method further includes:

[0034] Comparing the output power of the laser with an output power threshold corresponding to normal operation of the laser;

[0035] If the output power of the laser is lower than the output power threshold, a laser abnormality signal is issued to prompt the user to check the optical fiber link of the laser;

[0036] If the output power of the laser is not lower than the output power threshold, the step of respectively obtaining the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature is performed again.

[0037] In a possible implementation, the method further includes:

[0038] The service life of the laser is determined based on the device temperature, fixed parameters and the Boltzmann constant of the laser.

[0039] In a second aspect, the present application provides a monitoring device for a laser, the device comprising:

[0040] The information acquisition module is configured to obtain, after determining that the output power ratio of the laser is the rated ratio, the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature respectively;

[0041] An influence factor determination module is configured to obtain an influence factor based on the first ambient temperature and the second ambient temperature, and the device temperature and output power corresponding to each of them; the influence factor is used to characterize the influence of the ambient temperature on the device temperature and output power of the laser;

[0042] A laser efficiency determination module is configured to compare the influencing factor with a preset influencing factor; if the influencing factor comparison result indicates that the efficiency of the laser is reduced, then determine the theoretical service life of the laser when the device temperature is the theoretical temperature and the actual service life of the laser when the device temperature is the abnormal temperature when the temperature of the laser working environment is the fixed ambient temperature;

[0043] The laser service life status determination module is configured to determine the laser service life status according to the difference between the theoretical service life and the actual service life.

[0044] In a possible implementation manner, before determining that the output power ratio of the laser is the rated ratio, the device further includes a laser link checking module configured to:

[0045] Controlling the output power ratio of the laser to be a preset ratio;

[0046] Comparing the output power of the preset ratio with the receiving power of the receiving end of the switch;

[0047] If the difference between the output power of the preset ratio and the received power of the switch receiving end is within the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser is within the normal loss range, and the output power ratio of the laser is controlled to be the rated ratio.

[0048] In a possible implementation manner, the laser link checking module is further configured to:

[0049] If the difference between the output power of the preset ratio and the received power at the receiving end of the switch exceeds the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser exceeds the normal loss range, and an optical fiber link abnormality signal is issued to prompt the user to check the optical fiber link of the laser.

[0050] In a possible implementation manner, an initial device temperature and an initial output power of the laser correspond to the first ambient temperature, and a second device temperature and a second output power of the laser correspond to the second ambient temperature;

[0051] Then, the influence factor is obtained based on the first ambient temperature and the second ambient temperature, and the respective corresponding device temperatures and output powers, and the influence factor determination module is configured as follows:

[0052] subtracting a difference between the second device temperature and the initial device temperature from a difference between the second ambient temperature and the first ambient temperature to obtain a temperature influencing variable;

[0053] Subtracting the second output power from the initial output power to obtain a power influencing variable;

[0054] The ratio of the temperature influencing variable to the power influencing variable is used as the influencing factor.

[0055] In a possible implementation manner, the laser efficiency determination module is configured to determine the impact factor comparison result in the following manner:

[0056] If the impact factor is greater than the preset impact factor, determining that the impact factor comparison result represents a decrease in the efficiency of the laser;

[0057] If the impact factor is less than the preset impact factor, it is determined that the impact factor comparison result represents that the efficiency of the laser is within a normal fluctuation range.

[0058] In a possible implementation manner, the determining of the service life status of the laser according to the difference between the theoretical service life and the actual service life is performed, and the service life status determination module of the laser is configured as follows:

[0059] If the difference between the theoretical service life and the actual service life is greater than a preset service life loss threshold, the output power ratio is reduced so that the device temperature of the laser is within a preset device temperature range;

[0060] If the difference between the theoretical service life and the actual service life is not greater than a preset service life loss threshold, it is determined that the service life of the laser is within a normal loss range.

[0061] In a possible implementation, after reducing the output power ratio, if the device temperature of the laser is within a preset device temperature range, the apparatus further includes a laser output power comparison module configured to:

[0062] Comparing the output power of the laser with an output power threshold corresponding to normal operation of the laser;

[0063] If the output power of the laser is lower than the output power threshold, a laser abnormality signal is issued to prompt the user to check the optical fiber link of the laser;

[0064] If the output power of the laser is not lower than the output power threshold, the step of respectively obtaining the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature is performed again.

[0065] In a possible implementation manner, the device further includes a laser service life determination module configured to:

[0066] The service life of the laser is determined based on the device temperature, fixed parameters and the Boltzmann constant of the laser.

[0067] In a third aspect, the present application provides an electronic device, including:

[0068] Processor and memory;

[0069] The memory is used to store executable instructions of the processor;

[0070] The processor is used to execute the executable instructions to implement the laser monitoring method as described in the first aspect above.

[0071] In a fourth aspect, the present application provides a computer-readable storage medium. When instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to perform the laser monitoring method as described in the first aspect above.

[0072] In a fifth aspect, the present application provides a computer program product, including a computer program:

[0073] When the computer program is executed by a processor, the laser monitoring method as described in the first aspect above is implemented.

[0074] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0075] In the embodiment of the present application, whether the efficiency of the laser decreases is determined by the influencing factor of the laser. When it is determined that the efficiency of the laser decreases, the theoretical service life and the actual service life of the laser are determined, and based on the difference between the theoretical service life and the actual service life, the service life status of the laser is determined, so as to detect abnormalities of the laser in advance and maintain and replace the laser according to the specific situation. The method is simple and convenient and does not require the addition of additional devices.

[0076] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings introduced below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0078] Figure 1 A schematic diagram of the overall process of the laser monitoring method provided in an embodiment of the present application;

[0079] Figure 2 A schematic diagram of a process for adjusting the output power of a laser in a gradually increasing manner provided in an embodiment of the present application;

[0080] Figure 3 A schematic diagram of the process in step 102 provided in an embodiment of the present application;

[0081] Figure 4 A flowchart of step 104 provided in an embodiment of the present application;

[0082] Figure 5 A schematic diagram of a flow chart for comparing the output power of a laser provided in an embodiment of the present application with an output power threshold corresponding to normal operation of the laser;

[0083] Figure 6 A schematic diagram of the structure of a laser monitoring device 600 provided in an embodiment of the present application;

[0084] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0085] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Among them, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0086] Furthermore, in the description of the embodiments of the present application, unless otherwise specified, “ / ” means or. For example, A / B can mean A or B. The “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0087] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0088] At present, the current solutions for laser protection and monitoring are mainly as follows:

[0089] (1) Convert the light energy output by the laser into electrical energy, collect the input light energy and output voltage to calculate the conversion efficiency and determine whether the transmission link is abnormal.

[0090] (ii) Inside the laser, the optical power leaked from the laser is converted into current and voltage, and then the voltage is compared by a voltage comparator to determine whether the link is normal.

[0091] (3) Add a photodetector between the laser transmitting end and the switch receiving end, monitor the transmitted optical power through the photodetector, and then compare it with the threshold to determine whether the optical power and the optical fiber link are abnormal.

[0092] (iv) By monitoring the heat sink temperature and driving current mode, the laser operating time is accumulated and recorded, and then the laser service life is estimated through the power factor.

[0093] None of the above solutions can monitor the laser efficiently and accurately.

[0094] In view of this, the present application provides a laser monitoring method, device and equipment to solve the problem of lack of accuracy in laser detection in related technologies and the need for external hardware detection devices resulting in increased optical fiber link loss.

[0095] The inventive concept of the present application can be summarized as follows: first, determine that the output power ratio of the laser is the rated ratio, then determine the influencing factor according to different ambient temperatures, and the corresponding device temperatures and output powers, and then determine whether the efficiency of the laser has decreased through the influencing factor of the laser. When it is determined that the laser efficiency has decreased, determine the theoretical service life and the actual service life of the laser, and determine the service life status of the laser based on the difference between the theoretical service life and the actual service life, so as to detect abnormalities of the laser in advance and maintain and replace the laser according to the specific situation. The method is simple and convenient and does not require the addition of additional devices.

[0096] After introducing the main inventive ideas of the embodiments of the present application, the following briefly introduces the application scenarios to which the technical solutions of the embodiments of the present application can be applied. It should be noted that the application scenarios introduced below are only used to illustrate the embodiments of the present application and are not limited. In specific implementation, the technical solutions provided by the embodiments of the present application can be flexibly applied according to actual needs.

[0097] To facilitate understanding of the laser monitoring method provided in the embodiments of the present application, it is further described below with reference to the accompanying drawings.

[0098] In a possible implementation, a laser monitoring method, the overall process is as follows: Figure 1 As shown, including the following:

[0099] In step 101, after determining that the output power ratio of the laser is the rated ratio, the device temperature and output power of the laser are respectively obtained when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature.

[0100] It should be noted that the second ambient temperature may be higher than the first ambient temperature, or may be lower than the first ambient temperature.

[0101] In a possible implementation, when the laser is powered on, when the laser is directly turned on at full power, if there is dirt in the optical fiber link of the laser, it may cause the impedance of the dirty part to increase, the optical loss to increase, and thus cause the dirty part to burn, and the dirty part is basically at the optical interface connector. Therefore, before determining that the output power ratio of the laser is the rated ratio (i.e., 100% or full power), the embodiment of the present application uses a gradually increasing method to adjust the output power of the laser to ensure that the laser does not burn, such as Figure 2 As shown, specifically including the following:

[0102] In step 201, the output power ratio of the laser is controlled to be a preset ratio.

[0103] In step 202, the output power of the preset ratio is compared with the receiving power of the receiving end of the switch.

[0104] In step 203, if the difference between the preset ratio of output power and the received power at the switch receiving end is within the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser is within the normal loss range, and the output power ratio of the laser is controlled to be the rated ratio.

[0105] For example, the present application uses a main control device (such as a CPU) to set the bias current of the laser to adjust the output power of the laser and control the output power ratio P of the laser. TX 10%, 20%, 30% respectively, and then read the receiving power P at the receiving end of the switch RX , then the difference between the preset ratio of output power and the received power at the switch receiving end is the loss P of the entire optical fiber link. LOS =P TX -P RX When the optical fiber link is free of contamination, the loss of the entire link is basically fixed. The embodiment of the present application defines a preset difference range P0, which depends on the design of the laser system. When the system design is fixed, the P0 value is fixed. If P LOS If the value of is within the preset difference range, the entire optical fiber link in the embodiment of the present application is pollution-free, and the output power ratio of the laser is controlled to be the rated ratio.

[0106] In a possible implementation, if the difference between the preset ratio of output power and the received power at the receiving end of the switch exceeds a preset difference range, the power comparison result is determined to indicate that the optical fiber link loss of the laser exceeds a normal loss range, and an optical fiber link abnormality signal is issued to prompt the user to check the optical fiber link of the laser.

[0107] For example, if P LOS If the value exceeds the preset difference range P0, the entire optical fiber link is considered abnormal, and an optical fiber link abnormality signal is issued to prompt the user to check the optical fiber link of the laser.

[0108] It should be added that if the inspection determines that the optical fiber link is contaminated, the optical fiber link needs to be cleaned, and after the optical fiber link is cleaned, the embodiment of the present application will re-execute steps 201 to 203 to ensure the safety of the optical fiber link; if the laser and the optical fiber link are disassembled and checked to find no contamination, it will be processed according to the optical fiber abnormality or laser abnormality.

[0109] In step 102, an influence factor is obtained based on the first ambient temperature and the second ambient temperature, and the corresponding device temperature and output power. The influence factor is used to characterize the influence of the ambient temperature on the device temperature and output power of the laser.

[0110] In a possible implementation, an initial device temperature and an initial output power of the laser correspond to a first ambient temperature, and a second device temperature and a second output power of the laser correspond to a second ambient temperature;

[0111] In step 102, based on the first ambient temperature and the second ambient temperature, and the corresponding device temperature and output power, the influencing factor is obtained. The process is as follows: Figure 3 As shown, it can be implemented as:

[0112] In step 301, the difference between the second device temperature and the initial device temperature is subtracted from the difference between the second ambient temperature and the first ambient temperature to obtain a temperature influencing variable.

[0113] In step 302, the second output power is subtracted from the initial output power to obtain a power influencing variable.

[0114] In step 303, the ratio of the temperature influencing variable to the power influencing variable is used as an influencing factor.

[0115] The above steps are the following formula (1):

[0116]

[0117] Among them, α T represents the impact factor, T L represents the second device temperature, T L0 represents the initial device temperature, T R Indicates the second ambient temperature, T R0 Indicates the first ambient temperature, W L Represents the second output power, W L0 Indicates the initial output power.

[0118] In step 103, the influence factor is compared with the preset influence factor; if the influence factor comparison result indicates that the efficiency of the laser is reduced, the theoretical service life of the laser when the device temperature is the theoretical temperature and the actual service life of the laser when the device temperature is the abnormal temperature are determined when the temperature of the laser working environment is a fixed ambient temperature.

[0119] It should be noted that the preset impact factor is obtained by obtaining the device temperature, ambient temperature and output power of the laser after the temperature rises when the laser is subjected to a temperature rise test in the embodiment of the present application, and is obtained according to the above formula (1). The preset impact factor is a threshold value within a reasonable range for the influence of the ambient temperature on the device temperature and output power of the laser.

[0120] In a possible implementation, if the impact factor is greater than a preset impact factor, determining that the impact factor comparison result represents a decrease in the efficiency of the laser;

[0121] If the influence factor is less than the preset influence factor, it is determined that the influence factor comparison result represents that the efficiency of the laser is within a normal fluctuation range.

[0122] Since there are many reasons for the decrease in laser efficiency, such as abnormal optical fiber link of the laser or shortened laser life, the embodiment of the present application determines the theoretical service life and the current actual service life of the laser in the above step 103, so as to determine the impact of the decrease in laser efficiency on the laser service life.

[0123] In step 104, the service life state of the laser is determined according to the difference between the theoretical service life and the actual service life.

[0124] In a possible implementation, in step 104, the service life state of the laser is determined according to the difference between the theoretical service life and the actual service life, such as Figure 4 As shown, it can be implemented as:

[0125] In step 401, if the difference between the theoretical service life and the actual service life is greater than a preset service life loss threshold, the output power ratio is reduced so that the device temperature of the laser is within a preset device temperature range.

[0126] In a possible implementation manner, after reducing the output power ratio, if the device temperature of the laser is within a preset device temperature range, such as Figure 5 As shown, in order to ensure the normal operation of the laser, the embodiment of the present application will perform the following steps:

[0127] In step 501, the output power of the laser is compared with an output power threshold corresponding to normal operation of the laser.

[0128] In step 502, if the output power of the laser is lower than the output power threshold, a laser abnormality signal is issued to prompt the user to check the optical fiber link of the laser.

[0129] In step 503, if the output power of the laser is not lower than the output power threshold, the step of respectively obtaining the device temperature and output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature is performed again.

[0130] It should be added that when it is determined that the laser output power is lower than the output power threshold, that is, the normal business operation of the laser cannot be carried out, the embodiment of the present application ensures the safety of the optical fiber link by re-checking and determining whether the optical fiber link of the laser is abnormal; when the output power of the laser is not lower than the output power threshold, the normal business operation of the laser can be carried out. The embodiment of the present application determines whether the efficiency of the laser has decreased by re-determining the influencing factor.

[0131] In step 402, if the difference between the theoretical service life and the actual service life is not greater than a preset service life loss threshold, it is determined that the service life of the laser is within a normal loss range.

[0132] For example, the theoretical service life of a laser is T F0 , the actual service life is T F1 , the difference between theoretical service life and actual service life T FF =T F0 -T F1 , if T FF When β is greater than β (β is a preset life loss threshold value determined according to the life limit of the laser), the embodiment of the present application will reduce the output power of the laser, thereby reducing the equipment temperature of the laser, thereby extending the service life of the laser.

[0133] In one possible implementation, if it is determined that the service life of the laser is within the normal loss range, the embodiment of the present application will also monitor the current service life of the laser at the current device temperature. If the proportion of the current service life to the initial service life is lower than the preset service life proportion, a laser replacement signal is issued to prompt the user to replace the laser.

[0134] For example, the current service life of the laser at the current device temperature is 1 year, the initial service life of the laser is 10 years, and the preset service life ratio is 15%. If the current service life accounts for 10% of the initial service life, which is lower than 15%, the embodiment of the present application will send a laser replacement signal to prompt the user to replace the laser.

[0135] In a possible implementation, the method for determining the service life of a laser is as follows:

[0136] The lifetime of the laser is determined based on the device temperature, fixed parameters and Boltzmann constant of the laser.

[0137] The embodiment of the present application also uses the following formula (2) to determine the service life of the laser:

[0138]

[0139] Among them, T F Indicates the service life of the laser, A, e a represents the fixed parameters of the laser, K represents the Boltzmann constant, T L0 Represents the initial device temperature of the laser.

[0140] To summarize, the embodiment of the present application determines whether the efficiency of the laser decreases through the influencing factor of the laser. When it is determined that the efficiency of the laser decreases, the theoretical service life and the actual service life of the laser are determined, and the service life status of the laser is determined based on the difference between the theoretical service life and the actual service life, so as to detect the abnormality of the laser in advance and maintain and replace the laser according to the specific situation. The method is simple and convenient and does not require the addition of additional devices.

[0141] Based on the same inventive concept, the present application provides a laser monitoring device, such as Figure 6 As shown, the device 600 includes:

[0142] The information acquisition module 601 is configured to obtain, after determining that the output power ratio of the laser is the rated ratio, the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature respectively;

[0143] The influence factor determination module 602 is configured to obtain an influence factor based on the first ambient temperature and the second ambient temperature, and the device temperature and output power corresponding to each of them; the influence factor is used to characterize the influence of the ambient temperature on the device temperature and output power of the laser;

[0144] The laser efficiency determination module 603 is configured to compare the influencing factor with a preset influencing factor; if the influencing factor comparison result indicates that the efficiency of the laser is reduced, then determine the theoretical service life of the laser when the device temperature is the theoretical temperature and the actual service life of the laser when the device temperature is the abnormal temperature when the temperature of the laser working environment is the fixed ambient temperature;

[0145] The laser service life status determination module 604 is configured to determine the laser service life status according to the difference between the theoretical service life and the actual service life.

[0146] In a possible implementation manner, before determining that the output power ratio of the laser is the rated ratio, the device further includes a laser link checking module configured to:

[0147] Controlling the output power ratio of the laser to be a preset ratio;

[0148] Comparing the output power of the preset ratio with the receiving power of the receiving end of the switch;

[0149] If the difference between the output power of the preset ratio and the received power of the switch receiving end is within the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser is within the normal loss range, and the output power ratio of the laser is controlled to be the rated ratio.

[0150] In a possible implementation manner, the laser link checking module is further configured to:

[0151] If the difference between the output power of the preset ratio and the received power at the receiving end of the switch exceeds the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser exceeds the normal loss range, and an optical fiber link abnormality signal is issued to prompt the user to check the optical fiber link of the laser.

[0152] In a possible implementation manner, an initial device temperature and an initial output power of the laser correspond to the first ambient temperature, and a second device temperature and a second output power of the laser correspond to the second ambient temperature;

[0153] Then, the influence factor is obtained based on the first ambient temperature and the second ambient temperature, and the respective corresponding device temperatures and output powers, and the influence factor determination module is configured as follows:

[0154] subtracting a difference between the second device temperature and the initial device temperature from a difference between the second ambient temperature and the first ambient temperature to obtain a temperature influencing variable;

[0155] Subtracting the second output power from the initial output power to obtain a power influencing variable;

[0156] The ratio of the temperature influencing variable to the power influencing variable is used as the influencing factor.

[0157] In a possible implementation manner, the laser efficiency determination module is configured to determine the impact factor comparison result in the following manner:

[0158] If the impact factor is greater than the preset impact factor, determining that the impact factor comparison result represents a decrease in the efficiency of the laser;

[0159] If the impact factor is less than the preset impact factor, it is determined that the impact factor comparison result represents that the efficiency of the laser is within a normal fluctuation range.

[0160] In a possible implementation manner, the determining of the service life status of the laser according to the difference between the theoretical service life and the actual service life is performed, and the service life status determination module of the laser is configured as follows:

[0161] If the difference between the theoretical service life and the actual service life is greater than a preset service life loss threshold, the output power ratio is reduced so that the device temperature of the laser is within a preset device temperature range;

[0162] If the difference between the theoretical service life and the actual service life is not greater than a preset service life loss threshold, it is determined that the service life of the laser is within a normal loss range.

[0163] In a possible implementation, after reducing the output power ratio, if the device temperature of the laser is within a preset device temperature range, the apparatus further includes a laser output power comparison module configured to:

[0164] Comparing the output power of the laser with an output power threshold corresponding to normal operation of the laser;

[0165] If the output power of the laser is lower than the output power threshold, a laser abnormality signal is issued to prompt the user to check the optical fiber link of the laser;

[0166] If the output power of the laser is not lower than the output power threshold, the step of respectively obtaining the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature is performed again.

[0167] In a possible implementation manner, the device further includes a laser service life determination module configured to:

[0168] The service life of the laser is determined based on the device temperature, fixed parameters and the Boltzmann constant of the laser.

[0169] like Figure 7 As shown, the electronic device 130 is in the form of a general electronic device. The components of the electronic device 130 may include but are not limited to: the at least one processor 131, the at least one memory 132, and a bus 133 connecting different system components (including the memory 132 and the processor 131).

[0170] Bus 133 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a processor, or a local bus using any of a variety of bus architectures.

[0171] The memory 132 may include a readable medium in the form of a volatile memory, such as a random access memory (RAM) 1321 and / or a cache memory 1322 , and may further include a read-only memory (ROM) 1323 .

[0172] The memory 132 may also include a program / utility 1325 having a set (at least one) of program modules 1324, such program modules 1324 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0173] The electronic device 130 may also communicate with one or more external devices 134 (e.g., keyboards, pointing devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 130, and / or communicate with any device that enables the electronic device 130 to communicate with one or more other electronic devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 135. Furthermore, the electronic device 130 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 136. As shown, the network adapter 136 communicates with other modules for the electronic device 130 via a bus 133. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 130, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0174] In an exemplary embodiment, the present application further provides a computer-readable storage medium including instructions, such as a memory 132 including instructions, and the instructions can be executed by a processor 131 of an electronic device 130 to complete the above-mentioned laser monitoring method. Optionally, the computer-readable storage medium can be a non-transitory computer-readable storage medium, for example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0175] In an exemplary embodiment, a computer program product is also provided, including a computer program, and when the computer program is executed by the processor 131, the laser monitoring method provided in the present application is implemented.

[0176] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0177] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0178] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0179] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0180] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for monitoring a laser, It is characterized in that The method comprises: After determining that the output power ratio of the laser is the rated ratio, respectively obtaining the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature; Based on the first ambient temperature and the second ambient temperature, and the respective corresponding device temperatures and output powers, an influence factor is obtained; the influence factor is used to characterize the influence of the ambient temperature on the device temperature and output power of the laser; The influencing factor is compared with a preset influencing factor; if the influencing factor comparison result indicates that the efficiency of the laser is reduced, then determining the theoretical service life of the laser when the device temperature is the theoretical temperature and the actual service life of the laser when the device temperature is the abnormal temperature under the condition that the temperature of the laser working environment is a fixed ambient temperature; The service life state of the laser is determined according to the difference between the theoretical service life and the actual service life.

2. The method according to claim 1, It is characterized in that Before determining that the output power ratio of the laser is the rated ratio, the method further includes: Controlling the output power ratio of the laser to be a preset ratio; Comparing the output power of the preset ratio with the receiving power of the receiving end of the switch; If the difference between the output power of the preset ratio and the received power of the switch receiving end is within the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser is within the normal loss range, and the output power ratio of the laser is controlled to be the rated ratio.

3. The method according to claim 2, It is characterized in that The method further comprises: If the difference between the output power of the preset ratio and the received power at the receiving end of the switch exceeds the preset difference range, it is determined that the power comparison result indicates that the optical fiber link loss of the laser exceeds the normal loss range, and an optical fiber link abnormality signal is issued to prompt the user to check the optical fiber link of the laser.

4. The method according to claim 1, It is characterized in that The initial device temperature and the initial output power of the laser correspond to the first ambient temperature, and the second device temperature and the second output power of the laser correspond to the second ambient temperature; Then, the influencing factor is obtained based on the first ambient temperature and the second ambient temperature, and the respective corresponding device temperatures and output powers, including: subtracting a difference between the second device temperature and the initial device temperature from a difference between the second ambient temperature and the first ambient temperature to obtain a temperature influencing variable; Subtracting the second output power from the initial output power to obtain a power influencing variable; The ratio of the temperature influencing variable to the power influencing variable is used as the influencing factor.

5. The method according to claim 1, It is characterized in that The impact factor comparison result is determined by: If the impact factor is greater than the preset impact factor, determining that the impact factor comparison result represents a decrease in the efficiency of the laser; If the impact factor is less than the preset impact factor, it is determined that the impact factor comparison result represents that the efficiency of the laser is within a normal fluctuation range.

6. The method according to claim 5, It is characterized in that Determining the service life state of the laser according to the difference between the theoretical service life and the actual service life includes: If the difference between the theoretical service life and the actual service life is greater than a preset service life loss threshold, the output power ratio is reduced so that the device temperature of the laser is within a preset device temperature range; If the difference between the theoretical service life and the actual service life is not greater than a preset service life loss threshold, it is determined that the service life of the laser is within a normal loss range.

7. The method according to claim 6, It is characterized in that After reducing the output power ratio, if the device temperature of the laser is within a preset device temperature range, the method further includes: Comparing the output power of the laser with an output power threshold corresponding to normal operation of the laser; If the output power of the laser is lower than the output power threshold, a laser abnormality signal is issued to prompt the user to check the optical fiber link of the laser; If the output power of the laser is not lower than the output power threshold, the step of respectively obtaining the device temperature and the output power of the laser when the temperature of the laser working environment is the first ambient temperature and the second ambient temperature is performed again.

8. The method according to any one of claims 1 to 7, It is characterized in that The method further comprises: The service life of the laser is determined based on the device temperature, fixed parameters and the Boltzmann constant of the laser.

9. A laser monitoring device, It is characterized in that The device comprises: The information acquisition module is configured to, after determining that the output power ratio of the laser is the rated ratio, respectively acquire the device temperature and output power of the laser when the temperature of the laser working environment is a first ambient temperature and a second ambient temperature; the second ambient temperature is higher than the first ambient temperature; An influence factor determination module is configured to obtain an influence factor based on the first ambient temperature and the second ambient temperature, and the device temperature and output power corresponding to each of them; the influence factor is used to characterize the influence of the ambient temperature on the device temperature and output power of the laser; A laser efficiency determination module is configured to compare the influencing factor with a preset influencing factor; if the influencing factor comparison result indicates that the efficiency of the laser is reduced, then determine the theoretical service life of the laser when the device temperature is the theoretical temperature and the actual service life of the laser when the device temperature is the abnormal temperature when the temperature of the laser working environment is the fixed ambient temperature; The laser service life status determination module is configured to determine the laser service life status according to the difference between the theoretical service life and the actual service life.

10. A device, It is characterized in that include: Processor and memory; The memory is used to store the processor executable instructions; The processor is configured to execute the instructions to implement the laser monitoring method according to any one of claims 1 to 8.

11. A computer-readable storage medium, It is characterized in that When the instructions in the computer-readable storage medium are executed by a processor of a device, the device is enabled to perform the laser monitoring method according to any one of claims 1 to 8.

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