Power calibration method and device for fiber laser

Abstract

The present application provides a power calibration method and device for a fiber laser, wherein the power calibration method for the fiber laser comprises: determining the maximum ideal output power of the target fiber laser, determining multiple ideal reference points according to the maximum ideal output power; selecting any one ideal reference point as the ideal reference point to be detected; detecting the output of the target fiber laser according to the power meter to obtain the actual output power; adjusting the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and executing the step of selecting any one of the ideal reference points as the ideal reference point to be detected until all the ideal reference points are selected to complete the calibration of the target fiber laser. Automatic power calibration of the laser is achieved, excessive deviation in power consistency is avoided, the linearity of the laser output power value is improved, the problem of large discreteness of power deviation in the laser is improved, the use process requirements of the laser are reduced, and the output power is predictable.

Description

Technical Field

[0001] The present application relates to the field of laser technology, and in particular to a method for calibrating the power of a fiber laser. The present application also relates to a power calibration device for a fiber laser, a computing device, and a computer-readable storage medium. Background Art

[0002] Existing laser power calibration solutions focus solely on using a laser power meter to check whether the full-power laser output reaches the specified optical output power. This means that only the full-power laser output is calibrated. Power levels below full-power laser output depend solely on the inherent parameters of the product device and the laser integration process. Consequently, the consistency of the laser's power curve cannot be guaranteed, and linearity is difficult to ensure, hindering production standardization. Summary of the Invention

[0003] In view of this, the present invention provides a fiber laser power calibration method to address the technical deficiencies in the prior art. The present invention also provides a fiber laser power calibration device, a computing device, and a computer-readable storage medium.

[0004] According to a first aspect of an embodiment of the present application, a method for calibrating power of a fiber laser is provided, comprising:

[0005] S1, determining a maximum ideal output power of a target fiber laser, and determining a plurality of ideal reference points according to the maximum ideal output power;

[0006] S2, selecting any one of the ideal reference points as the ideal reference point to be detected;

[0007] S3, detecting the output of the target fiber laser according to a preset power meter to obtain the actual output power;

[0008] S4, adjusting the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and executing S2 until all the ideal reference points are selected, thereby completing the calibration of the target fiber laser.

[0009] Optionally, in S1, determining a plurality of ideal reference points according to the maximum ideal output power includes:

[0010] S11, determining a power output range of the target fiber laser according to the maximum ideal output power;

[0011] S12, determining a division step size according to the detection accuracy of the power meter;

[0012] S13: Determine a plurality of ideal reference points in the power output interval according to the division step size.

[0013] Optionally, before S3, the step further includes:

[0014] The output power of the target fiber laser is adjusted according to the ideal reference point to be detected.

[0015] Optionally, in S4, adjusting the output of the target fiber laser according to the actual output power and the ideal reference point to be detected includes:

[0016] S41, determining a calibrated power upper limit and a calibrated power lower limit according to the ideal reference point to be detected;

[0017] S42, adjusting the output power of the fiber laser according to the actual output power, the calibrated power upper limit, and the calibrated power lower limit;

[0018] S43, executing S3 until the actual output power meets the power calibration requirement.

[0019] Optionally, in S42, adjusting the output power of the fiber laser according to the actual output power, the calibrated power upper limit, and the calibrated power lower limit includes:

[0020] S411, comparing the actual output power with the calibrated power upper limit, and determining whether the actual output power is greater than the calibrated power upper limit,

[0021] If yes, adjust the output power of the fiber laser to a negative bias of a preset unit, and execute S411 until the actual output power is less than the ideal reference point to be detected;

[0022] If not, compare the actual output power with the calibrated power lower limit. When the actual output power is less than the calibrated power lower limit, adjust the output power of the fiber laser to be positive by one of the preset units. When the actual output power is not less than the calibrated power lower limit, complete the adjustment.

[0023] According to a second aspect of an embodiment of the present application, a power calibration device for a fiber laser is provided, comprising:

[0024] a reference point determination module configured to determine a maximum ideal output power of the target fiber laser and determine a plurality of ideal reference points according to the maximum ideal output power;

[0025] A selection module is configured to select any one of the ideal reference points as the ideal reference point to be detected;

[0026] a detection module, configured to detect the output of the target fiber laser according to a preset power meter to obtain an actual output power;

[0027] The adjustment module is configured to adjust the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and call the selection module until all the ideal reference points are selected to complete the calibration of the target fiber laser.

[0028] According to a third aspect of an embodiment of the present application, a computing device is provided, including:

[0029] memory and processor;

[0030] The memory is used to store computer-executable instructions, and the processor implements the steps of the fiber laser power calibration method when executing the computer-executable instructions.

[0031] According to a fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided, which stores computer-executable instructions. When the instructions are executed by a processor, the steps of the power calibration method of the fiber laser are implemented.

[0032] According to a fifth aspect of the embodiments of the present application, a chip is provided, which stores a computer program. When the computer program is executed by the chip, the steps of the power calibration method of the optical fiber laser are implemented.

[0033] The power calibration method of the fiber laser provided in this application, through S1, determines the maximum ideal output power of the target fiber laser, and determines multiple ideal reference points based on the maximum ideal output power; S2, selects any one of the ideal reference points as the ideal reference point to be detected; S3, detects the output of the target fiber laser according to a preset power meter to obtain the actual output power; S4, adjusts the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and executes S2 until all the ideal reference points are selected to complete the calibration of the target fiber laser. Automatic power calibration of the laser is achieved, excessive power consistency deviation is avoided, the linearity of the laser output power value is improved, the problem of large discreteness of power deviation in the laser is improved, the use process requirements of the laser are reduced, and the output power is predictable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described 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.

[0035] Figure 1 This is a flow chart of a method for power calibration of a fiber laser provided in one embodiment of the present application;

[0036] Figure 2 This is a data interaction diagram of a power calibration method for a fiber laser provided in one embodiment of the present application;

[0037] Figure 3 This is a diagram showing the relationship between the electrical signal and the output light power of a fiber laser power calibration method provided in one embodiment of the present application;

[0038] Figure 4 This is a software 30% power calibration flow chart of a fiber laser power calibration method provided in one embodiment of the present application;

[0039] Figure 5 This is a single calibration flow chart of a power calibration method for a fiber laser provided in one embodiment of the present application;

[0040] Figure 6 This is a schematic structural diagram of a power calibration device for a fiber laser provided in one embodiment of the present application;

[0041] Figure 7 This is a structural block diagram of a computing device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0042] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the scope of the present application. Therefore, the present application is not limited to the specific implementations disclosed below.

[0043] The terms used in one or more embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit one or more embodiments of the present application. The singular forms "a", "the" and "the" used in one or more embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in one or more embodiments of the present application refers to and includes any or all possible combinations of one or more associated listed items.

[0044] It should be understood that although the terms "first," "second," and the like may be used to describe various information in one or more embodiments of the present application, such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, "first" may also be referred to as "second," and similarly, "second" may also be referred to as "first," without departing from the scope of one or more embodiments of the present application.

[0045] This application provides a fiber laser power calibration method, a fiber laser power calibration device, a computing device, and a computer-readable storage medium, each of which is described in detail in the following embodiments.

[0046] Figure 1 A flowchart of a method for calibrating power of a fiber laser according to an embodiment of the present application is shown, which specifically includes the following steps:

[0047] S1, determining a maximum ideal output power of a target fiber laser, and determining a plurality of ideal reference points according to the maximum ideal output power;

[0048] S2, selecting any one of the ideal reference points as the ideal reference point to be detected;

[0049] S3, detecting the output of the target fiber laser according to a preset power meter to obtain the actual output power;

[0050] S4, adjusting the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and executing S2 until all the ideal reference points are selected, thereby completing the calibration of the target fiber laser.

[0051] Among them, such as Figure 2 A data interaction diagram of a fiber laser power calibration method is provided. In the diagram, the target fiber laser is represented by the laser and the optical power meter is represented by the power meter. The hardware components involved in executing steps S1-S4 rely on data processing equipment, software operation, data display equipment, and data storage equipment. The maximum ideal output power can be understood as the full power output of the target fiber laser.

[0052] Based on this, the data processing equipment determines multiple ideal reference points according to the maximum ideal output power of the target fiber laser. Then, for any ideal reference point, such as 30% of the full power output of the target fiber laser, the output of the target fiber laser is set to 30%. The actual output power of the target fiber laser is collected by the power meter and recorded as the actual output power. Then, according to the relationship between the actual output power and the ideal reference point, the output of the target fiber laser is adjusted. When all the ideal reference points are adjusted, the calibration of the target fiber laser is completed.

[0053] Furthermore, in step S1, the process of determining multiple ideal reference points according to the maximum ideal output power is specifically implemented as follows in this embodiment:

[0054] S11, determining a power output range of the target fiber laser according to the maximum ideal output power;

[0055] S12, determining a division step size according to the detection accuracy of the power meter;

[0056] S13: Determine a plurality of ideal reference points in the power output interval according to the division step size.

[0057] Among them, due to the combination and connection of various optical devices inside the fiber laser, the laser will have different losses, and it is difficult to achieve a linear monotonically increasing function with different percentage powers. Therefore, a representative power percentage is selected as the ideal reference point. Figure 3 The relationship between the electrical signal and the output light power of a fiber laser power calibration method is shown in the figure, which represents the relationship between the internal electrical signal of the fiber laser and the output light power of the whole machine. The ideal current / power relationship should be the leftmost dotted line. However, from a practical point of view, the fiber laser requires a certain starting current, that is, I th , then the ideal relationship of the fiber laser should be the second dotted line on the left, but for the reasons mentioned above, the actual current / power relationship of the fiber laser is the solid line in the figure.

[0058] Based on this, in order to "pull" the discrete power curve back to the vicinity of the ideal curve, achieve mass-produced fiber lasers, and maintain a highly consistent power output curve, power calibration is required. From a theoretical point of view, the smaller the division step size is set, the more ideal reference points there are, and the more accurate the power calibration result is. However, whether from a cost perspective or from the accuracy of the power meter, it is impossible to achieve unlimited selection of ideal reference points. If too many ideal reference points are selected, the power difference between two adjacent ideal reference points will be small, and even cannot be accurately identified and distinguished by the power meter. Therefore, the selection of the division step size needs to be based on the detection accuracy of the power meter.

[0059] Furthermore, before step S3, for the output power of the target laser currently being calibrated, it is necessary to give the laser a corresponding initial output power. In this embodiment, the specific implementation is as follows:

[0060] The output power of the target fiber laser is adjusted according to the ideal reference point to be detected.

[0061] Among them, such as Figure 4A software 30% power calibration flow chart of a fiber laser power calibration method is provided. At this time, the maximum ideal output power of the target fiber laser is 220W, and the ideal reference point to be detected is 30%, that is, 66W. A 30% command is sent to the target fiber laser, and the power feedback value, that is, the actual output power, is read through the power meter. The difference between the power and 66W at this time is calculated and memorized. If the difference is 0, it indicates that the output of the target fiber laser does not need to be calibrated, and the difference percentage (30%) is returned. If the difference is positive, it indicates that the output of the target fiber laser is higher than the ideal reference point to be detected and needs to be appropriately lowered, so a negative bias search is performed; conversely, if the difference is negative, it indicates that the output of the target fiber laser is lower than the ideal reference point to be detected and needs to be appropriately increased, so a positive bias search is performed.

[0062] When the above difference is not 0, the percentage is sent according to the minimum step. The minimum step can be understood as the preset adjustment range. For example, 1%, that is, the difference is positive, then the target fiber laser needs to be adjusted to 31% of the output power. Similarly, if the minimum step is 2% and the difference is positive, then the target fiber laser needs to be adjusted to 32% of the output power.

[0063] In addition, the software can also record the difference between the power and 66W before and after the minimum step percentage is sent. If the absolute value of the difference is reduced, it proves that further adjustment is still needed. If the absolute value percentage of the difference is not reduced, it proves that the calibration is completed at this time and the minimum difference percentage is returned. The above returned difference percentage is memorized by the target fiber laser, and in the actual working scenario, the laser receives the output instruction of the ideal reference point value to be detected, and will output according to the minimum difference percentage returned by the ideal reference point to be detected. For example, if the ideal reference point to be detected is 30% and the minimum difference percentage is -3%, then when the target fiber laser receives the instruction to output 30% power, the target fiber laser outputs 27% power.

[0064] Furthermore, in S4, the process of adjusting the output of the target fiber laser according to the actual output power and the ideal reference point to be detected is specifically implemented as follows in this embodiment:

[0065] S41, determining a calibrated power upper limit and a calibrated power lower limit according to the ideal reference point to be detected;

[0066] S42, adjusting the output power of the fiber laser according to the actual output power, the calibrated power upper limit, and the calibrated power lower limit;

[0067] S43, executing S3 until the actual output power meets the power calibration requirement.

[0068] Furthermore, in S42, the process of adjusting the output power of the fiber laser according to the actual output power, the calibrated power upper limit, and the calibrated power lower limit is specifically implemented as follows in this embodiment:

[0069] S411, comparing the actual output power with the calibrated power upper limit, and determining whether the actual output power is greater than the calibrated power upper limit,

[0070] If yes, adjust the output power of the fiber laser to a negative bias of a preset unit, and execute S411 until the actual output power is less than the ideal reference point to be detected;

[0071] If not, compare the actual output power with the calibrated power lower limit. When the actual output power is less than the calibrated power lower limit, adjust the output power of the fiber laser to be positive by one of the preset units. When the actual output power is not less than the calibrated power lower limit, complete the adjustment.

[0072] Among them, such as Figure 5 As shown in the single calibration flow chart of the power calibration method of a fiber laser, since the target fiber laser is started or there is a preheating process, when the non-compensated light output instruction is issued, 5 groups of power averages A are read first, and then 5 groups of power averages B are read. It should be noted that the value ranges of A and B may overlap or not overlap. For example, the output power of the target fiber laser is C1, C2, C3, C4, C5, C6, C7, C8, C9, C10 over time. Then A at this time is the average value of the five groups of data {C1, C2, C3, C4, C5}, and B is the average value of the five groups of data {C6, C7, C8, C9, C10} after A corresponds to the output power; or A is also the average value of the five groups of data {C1, C2, C3, C4, C5}, and B is the average value of the five groups of data {C2, C3, C4, C5, C6} whose output powers overlap closely with A.

[0073] Then compare the size relationship between B and A. If B is greater than A, it proves that it is still preheating, assign B's data to A as the average power of the previous moment, collect the average of 5 groups of powers at the current moment again as B, and continue to compare; until B is greater than or equal to A, it proves that the preheating is completed at this time, and compare the currently detected power B, that is, the actual output power, with the calibrated power upper limit. If B is greater than the calibrated power upper limit, the laser output power needs to be reduced, and the non-compensated light output instruction is negatively biased by 1 unit, that is, the output power of the fiber laser is adjusted to a negative bias of a preset unit; otherwise, compare B with the calibrated power lower limit. If B is less than the calibrated power lower limit, the laser output power needs to be increased, and the non-compensated light output instruction is positively biased by 1 unit until B is above the calibrated power lower limit and below the calibrated power upper limit, and record the current compensation unit.

[0074] After completing the above calibration process once, the calibration action of the next ideal reference point is then performed until all calibration points are calibrated. According to actual measurements, in the existing technology, for the production data statistics of a 200W laser, the maximum laser power difference is 21.7W. The power consistency deviation of the product is as high as more than 10%. After using the above solution for automatic power calibration, the power consistency deviation of the fiber laser can be reduced from more than 10% to less than 1%.

[0075] Corresponding to the above method embodiment, the present application also provides an embodiment of a power calibration device for a fiber laser, Figure 6 FIG. 1 shows a schematic diagram of a power calibration device for a fiber laser according to an embodiment of the present application. Figure 6 As shown, the device includes:

[0076] The reference point determination module 602 is configured to determine the maximum ideal output power of the target fiber laser and determine a plurality of ideal reference points according to the maximum ideal output power;

[0077] The selection module 604 is configured to select any one of the ideal reference points as the ideal reference point to be detected;

[0078] The detection module 606 is configured to detect the output of the target fiber laser according to a preset power meter to obtain the actual output power;

[0079] The adjustment module 608 is configured to adjust the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and call the selection module until all the ideal reference points are selected to complete the calibration of the target fiber laser.

[0080] In an optional embodiment, the reference point determination module 602 is further configured to:

[0081] The power output range of the target laser is determined according to the maximum ideal output power; the division step is determined according to the detection accuracy of the power meter; and a plurality of ideal reference points are determined in the power output range according to the division step.

[0082] In an optional embodiment, the power calibration device for the fiber laser further includes:

[0083] The instruction sending module is configured to adjust the output power of the target fiber laser according to the ideal reference point to be detected.

[0084] In an optional embodiment, the adjustment module 608 is further configured to:

[0085] According to the ideal reference point to be detected, a calibrated power upper limit and a calibrated power lower limit are determined; according to the actual output power, the calibrated power upper limit and the calibrated power lower limit, the output power of the fiber laser is adjusted; and the detection module 606 is called until the actual output power meets the power calibration requirement.

[0086] In an optional embodiment, the adjustment module 608 is further configured to:

[0087] The actual output power is compared with the calibrated power upper limit, and it is determined whether the actual output power is greater than the calibrated power upper limit. If so, the output power of the fiber laser is adjusted to a negative bias of one preset unit, and the adjustment module 608 is called until the actual output power is less than the ideal reference point to be detected; if not, the actual output power is compared with the calibrated power lower limit. When the actual output power is less than the calibrated power lower limit, the output power of the fiber laser is adjusted to a positive bias of one preset unit. When the actual output power is not less than the calibrated power lower limit, the adjustment is completed.

[0088] The power calibration device of the fiber laser provided by the present application determines the maximum ideal output power of the target fiber laser through S1, and determines multiple ideal reference points based on the maximum ideal output power; S2, selects any one of the ideal reference points as the ideal reference point to be detected; S3, detects the output of the target fiber laser according to a preset power meter to obtain the actual output power; S4, adjusts the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and executes S2 until all the ideal reference points are selected to complete the calibration of the target fiber laser. Automatic power calibration of the laser is achieved, avoiding excessive deviation in power consistency, improving the linearity of the laser output power value, improving the problem of large discreteness of power deviation in the laser, reducing the use process requirements of the laser, and having predictability of output power.

[0089] The above is a schematic scheme of a power calibration device for a fiber laser of this embodiment. It should be noted that the technical solution of the power calibration device for the fiber laser and the technical solution of the power calibration method for the fiber laser mentioned above belong to the same concept. For details not described in detail in the technical solution of the power calibration device for the fiber laser, please refer to the description of the technical solution of the power calibration method for the fiber laser mentioned above. In addition, the various components in the device embodiment should be understood as functional modules that must be established to implement each step of the program flow or each step of the method, and each functional module is not an actual functional division or separation definition. The device claim defined by such a group of functional modules should be understood as a functional module architecture that mainly implements the solution through the computer program recorded in the specification, and should not be understood as a physical device that mainly implements the solution through hardware.

[0090] Figure 7 7 shows a block diagram of a computing device 700 according to an embodiment of the present application. Components of the computing device 700 include, but are not limited to, a memory 710 and a processor 720. The processor 720 is connected to the memory 710 via a bus 730, and a database 750 is used to store data.

[0091] The computing device 700 also includes an access device 740 that enables the computing device 700 to communicate via one or more networks 760. Examples of such networks include a public switched telephone network (PSTN), a local area network (LAN), a wide area network (WAN), a personal area network (PAN), or a combination of communication networks such as the Internet. The access device 740 may include one or more of any type of network interface (e.g., a network interface card (NIC)), whether wired or wireless, such as an IEEE 802.11 wireless local area network (WLAN) wireless interface, a Worldwide Interoperability for Microwave Access (Wi-MAX) interface, an Ethernet interface, a universal serial bus (USB) interface, a cellular network interface, a Bluetooth interface, a near field communication (NFC) interface, and the like.

[0092] In one embodiment of the present application, the above components of the computing device 700 and Figure 7 Other components not shown in the figure may also be connected to each other, for example, via a bus. Figure 7 The computing device structure block diagram shown is for illustrative purposes only and is not intended to limit the scope of the present application. Those skilled in the art may add or replace other components as needed.

[0093] Computing device 700 can be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., a tablet computer, personal digital assistant, laptop computer, notebook computer, netbook computer, etc.), a mobile phone (e.g., a smartphone), a wearable computing device (e.g., a smartwatch, smart glasses, etc.), or other types of mobile devices, or a stationary computing device such as a desktop computer or PC. Computing device 700 can also be a mobile or stationary server.

[0094] The processor 720 is configured to execute computer executable instructions for each step of the fiber laser power calibration method.

[0095] The above is a schematic diagram of a computing device according to this embodiment. It should be noted that the technical solution of this computing device is based on the same concept as the technical solution of the aforementioned fiber laser power calibration method. For details not described in detail in the technical solution of the computing device, please refer to the description of the technical solution of the aforementioned fiber laser power calibration method.

[0096] An embodiment of the present application further provides a computer-readable storage medium storing computer instructions, which, when executed by a processor, are used to execute the steps of the fiber laser power calibration method.

[0097] The above is a schematic diagram of a computer-readable storage medium according to this embodiment. It should be noted that the technical solution of this storage medium is based on the same concept as the technical solution of the aforementioned fiber laser power calibration method. For details not described in detail in the technical solution of the storage medium, please refer to the description of the technical solution of the aforementioned fiber laser power calibration method.

[0098] An embodiment of the present application further provides a chip storing a computer program, which implements the steps of the fiber laser power calibration method when executed by the chip.

[0099] The foregoing description describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0100] The computer instructions include computer program code, which may be in source code form, object code form, executable file, or some intermediate form. The computer-readable medium may include any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal, and software distribution medium. It should be noted that the content of the computer-readable medium may be appropriately increased or decreased based on the requirements of legislation and patent practice within a jurisdiction. For example, in some jurisdictions, based on legislation and patent practice, computer-readable media does not include electric carrier signals and telecommunication signals.

[0101] It should be noted that for the aforementioned method embodiments, for ease of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0102] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0103] The preferred embodiments of the present application disclosed above are intended only to help illustrate the present application. The optional embodiments do not describe all details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made based on the content of this application. This application selects and describes these embodiments in detail in order to better explain the principles and practical applications of this application, so that those skilled in the art can better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A method for calibrating the power of a fiber laser, characterized in that: include: S1, determining the maximum ideal output power of a target fiber laser, and determining a plurality of ideal reference points based on the maximum ideal output power. Specifically, determining a power output range of the target fiber laser based on the maximum ideal output power, determining a division step size based on the detection accuracy of a power meter, and determining a plurality of ideal reference points in the power output range based on the division step size; S2, selecting any one of the ideal reference points as the ideal reference point to be detected; S3, detecting the output of the target fiber laser according to a preset power meter to obtain the actual output power; S4, adjusting the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and executing S2 until all the ideal reference points are selected to complete the calibration of the target fiber laser, wherein the process of adjusting the output of the target fiber laser is to determine a calibrated power upper limit and a calibrated power lower limit according to the ideal reference point to be detected, compare the actual output power with the calibrated power upper limit, and judge whether the actual output power is greater than the calibrated power upper limit; if so, adjust the output power of the fiber laser to a negative bias of a preset unit, and execute the step of comparing the actual output power with the calibrated power upper limit until the actual output power is less than the ideal reference point to be detected; if not, compare the actual output power with the calibrated power lower limit, when the actual output power is less than the calibrated power lower limit, adjust the output power of the fiber laser to a positive bias of the preset unit, when the actual output power is not less than the calibrated power lower limit, complete the adjustment, and execute S3 until the actual output power meets the power calibration requirement.

2. The power calibration method of the optical fiber laser according to claim 1, characterized in that: Before S3, it also includes: The output power of the target fiber laser is adjusted according to the ideal reference point to be detected.

3. A power calibration device for a fiber laser, characterized in that: include: a reference point determination module configured to determine a maximum ideal output power of a target fiber laser and determine a plurality of ideal reference points based on the maximum ideal output power; specifically, determining a power output range of the target fiber laser based on the maximum ideal output power, determining a division step size based on the detection accuracy of a power meter, and determining a plurality of ideal reference points in the power output range based on the division step size; A selection module is configured to select any one of the ideal reference points as the ideal reference point to be detected; a detection module, configured to detect the output of the target fiber laser according to a preset power meter to obtain an actual output power; The adjustment module is configured to adjust the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and call the selection module until all the ideal reference points are selected to complete the calibration of the target fiber laser, wherein the process of adjusting the output of the target fiber laser is to determine a calibrated power upper limit and a calibrated power lower limit according to the ideal reference point to be detected, compare the actual output power with the calibrated power upper limit, and determine whether the actual output power is greater than the calibrated power upper limit. If so, adjust the output power of the fiber laser to a negative bias of one preset unit, and perform the step of comparing the actual output power with the calibrated power upper limit until the actual output power is less than the ideal reference point to be detected; if not, compare the actual output power with the calibrated power lower limit. When the actual output power is less than the calibrated power lower limit, adjust the output power of the fiber laser to a positive bias of one preset unit. When the actual output power is not less than the calibrated power lower limit, complete the adjustment and call the detection module until the actual output power meets the power calibration requirement.

4. A computing device, characterized in that include: memory and processor; The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the steps of the fiber laser power calibration method according to any one of claims 1 to 2.

5. A computer-readable storage medium storing computer instructions, characterized in that: When the instruction is executed by a processor, the steps of the power calibration method of the optical fiber laser according to any one of claims 1 to 2 are implemented.

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