Pre-compensation laser power control method and device, processing equipment and storage medium

Abstract

The application relates to a pre-compensation laser power control method and device, a processing equipment and a storage medium, wherein the method comprises the following steps: acquiring laser adjustment efficiency values of multiple-stage spatial light paths before a laser warms up is completed, and a frequency conversion target power after the warming up is completed; determining a warming up process fundamental frequency compensation power of the laser according to an acousto-optic crystal efficiency, a frequency conversion efficiency and the frequency conversion target power; and determining an output power control instruction of the laser according to the warming up process fundamental frequency compensation power and the frequency conversion target power. The method effectively improves the problem that the temperature change when the laser starts will cause light deviation, thereby causing the output power to be unable to reach the expectation, guarantees the stability of the output power in the laser starting process, so that the power is smoothly and continuously transited before and after the warming up is completed, and in an ideal state, the laser can emit light immediately after the cold start and maintain a stable power output, thereby greatly shortening the required time length of the laser warming up, and meeting higher requirements of laser processing.

Description

Technical Field

[0001] This application relates to the field of laser processing, and in particular to a pre-compensated laser power control method, apparatus, processing equipment, and storage medium. Background Technology

[0002] With the continuous development of laser processing technology and the increasing demand for laser processing, the requirements for laser processing are becoming more and more stringent. However, during the startup process, the laser's output power cannot reach the expected level for a period of time due to the temperature change of the lenses in the optical path as the laser starts up. Summary of the Invention

[0003] Therefore, it is necessary to provide a pre-compensated laser power control method, device, processing equipment, and storage medium to address the aforementioned technical problems.

[0004] A pre-compensated laser power control method, comprising:

[0005] The laser adjustment efficiency value of the multi-stage spatial optical path before the laser warm-up is completed, and the frequency conversion target power after the warm-up is completed, are obtained. The laser adjustment efficiency value includes the acousto-optic crystal efficiency and the frequency conversion efficiency. The fundamental frequency compensation power of the laser during the warm-up process is determined based on the acousto-optic crystal efficiency, the frequency conversion efficiency, and the target frequency conversion power. The output power control command of the laser is determined based on the fundamental frequency compensation power during the warm-up process and the target power for frequency conversion.

[0006] In one embodiment, determining the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency, the frequency conversion efficiency, and the target frequency conversion power includes: The acousto-optic fundamental frequency power of the laser is determined based on the frequency conversion efficiency and the frequency conversion target power. The fundamental frequency compensation power of the laser during the warm-up process is determined based on the acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power.

[0007] In one embodiment, determining the acousto-optic fundamental frequency power of the laser based on the frequency conversion efficiency and the target frequency conversion power includes: Based on the frequency conversion efficiency, the temperature and angle of the laser spatial optical path and the frequency conversion crystal are adjusted to determine the adjusted frequency conversion efficiency. The acousto-optic fundamental frequency power of the laser is determined based on the adjusted frequency conversion efficiency and the frequency conversion target power.

[0008] In one embodiment, determining the acousto-optic fundamental frequency power of the laser based on the frequency conversion efficiency and the target frequency conversion power includes: Pn1=Pm1 / Z1 In the formula, Pn1 represents the fundamental frequency power after acousto-optic conversion, Pm1 represents the target power of frequency conversion, and Z1 represents the adjusted frequency conversion efficiency.

[0009] In one embodiment, determining the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power includes: Based on the acousto-optic crystal efficiency, the laser spatial optical path, the angle of the acousto-optic crystal, and the operating voltage are adjusted to determine the adjusted acousto-optic crystal efficiency. The fundamental frequency compensation power of the laser during the warm-up process is determined based on the adjusted acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power.

[0010] In one embodiment, determining the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power includes: Pn2=Pm2 / Z2 In the formula, Pn2 represents the fundamental frequency compensation power during the warm-up process, Pm2 represents the fundamental frequency power after the acousto-optic process, and Z2 represents the adjusted acousto-optic crystal efficiency.

[0011] In one embodiment, determining the fundamental frequency compensation power of the laser during the warm-up process based on the frequency conversion efficiency and the target frequency conversion power further includes: When the spatial optical path of the laser is a multi-stage frequency conversion optical path, the frequency conversion target power of the first-stage optical path in the multi-stage frequency conversion optical path is determined according to the frequency conversion efficiency and frequency conversion target power of the subsequent optical path in the multi-stage frequency conversion optical path. Based on the target frequency conversion power and frequency conversion efficiency of the preceding optical path in the multi-stage frequency conversion optical path, the fundamental frequency compensation power of the multi-stage frequency conversion optical path of the laser during the warm-up process is determined.

[0012] A pre-compensated laser power control device, comprising: The acquisition module is used to acquire the laser adjustment efficiency value of the multi-stage spatial optical path before the laser warm-up is completed, and the frequency conversion target power after the warm-up is completed. The laser adjustment efficiency value includes the acousto-optic crystal efficiency and the frequency conversion efficiency. A warm-up power compensation module, connected to the acquisition module, is used to determine the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency, the frequency conversion efficiency, and the frequency conversion target power. The power control module, connected to the acquisition module and the warm-up power compensation module, is used to determine the output power control command of the laser based on the fundamental frequency compensation power during the warm-up process and the frequency conversion target power.

[0013] A processing apparatus includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the method described above.

[0014] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described above.

[0015] A computer program product that, when run on a terminal device, causes the terminal device to perform any of the methods described above.

[0016] The beneficial effects of the embodiments provided in this application include: This pre-compensated laser power control method, during laser startup, determines the fundamental frequency compensation power for the warm-up process based on the laser adjustment efficiency value (such as acousto-optic crystal efficiency and frequency conversion efficiency) before the laser warm-up is completed and the target frequency conversion power after the warm-up is completed. This power compensation can specifically compensate for power fluctuations or attenuation during the laser warm-up process. Furthermore, based on the obtained fundamental frequency compensation power and the target frequency conversion power after the warm-up, an output power control command is determined that is adaptable to different laser adjustment efficiencies and output power conditions before and after the laser warm-up is completed. This ensures sufficient laser power output even when the laser adjustment efficiency value is low, effectively mitigating the problem of light polarization caused by temperature changes during laser startup, which prevents the output power from reaching the expected level. It guarantees the stability of the output power during laser startup, ensuring a smooth and continuous power transition before and after warm-up. Ideally, it can emit light immediately after a cold start and maintain stable power output, thereby significantly shortening the laser warm-up time and meeting higher requirements for laser processing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating a pre-compensation laser power control method in one embodiment; Figure 2This is a schematic diagram of the specific process of step 104 in one embodiment; Figure 3 This is a schematic diagram of the specific process of step 104 in one embodiment; Figure 4 This is a schematic block diagram of the pre-compensated laser power control device in one embodiment; Figure 5 This is a schematic block diagram of the specific structure of the warm-up power compensation module 40 in one embodiment; Figure 6 This is a schematic block diagram of the specific structure of the warm-up power compensation module 40 in one embodiment; Figure 7 This is a schematic diagram of the processing equipment in one embodiment. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] Figure 1 This is a flowchart illustrating a pre-compensation laser power control method in one embodiment.

[0022] In this embodiment, as Figure 1 As shown, the pre-compensated laser power control method is applied to the laser power-on process, and the pre-compensated laser power control method includes steps 102 to 106.

[0023] Step 102: Obtain the laser adjustment efficiency value of the multi-stage spatial optical path before the laser warm-up is completed, and the frequency conversion target power after the warm-up is completed.

[0024] The laser adjustment efficiency value can be the efficiency level when adjusting the laser power and frequency before the laser warm-up is complete. The frequency conversion target power can be the stable output power value expected to be achieved after the laser frequency conversion process is completed.

[0025] Laser modulation efficiency values ​​include acousto-optic crystal efficiency and frequency conversion efficiency. Acousto-optic crystal efficiency refers to the efficiency of laser modulation via the acousto-optic crystal before the laser warm-up is complete. Frequency conversion efficiency refers to the efficiency of frequency conversion of the laser before the laser warm-up is complete.

[0026] It should be noted that the modulation effect of acousto-optic crystals can also be replaced by other methods that can adjust the power in real time, such as using a combination of electrically tunable waveplates and polarization beam splitters / thin-film polarizers to adjust the laser power.

[0027] Step 104: Determine the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency, frequency conversion efficiency, and frequency conversion target power.

[0028] The fundamental frequency compensation power during the warm-up process can be based on the laser adjustment efficiency value before warm-up and the target power output value after warm-up. It represents the fundamental frequency power that needs to be pre-compensated during the warm-up process, i.e., the fundamental frequency power required to specifically compensate for power fluctuations or attenuation during the laser's warm-up. Optionally, the fundamental frequency compensation power during the warm-up process can be the fundamental frequency laser power before acousto-optic interaction, i.e., the fundamental frequency laser power before the acousto-optic interaction.

[0029] Based on the acousto-optic crystal efficiency, frequency conversion efficiency, and frequency conversion target power, the following scenarios determine the fundamental frequency compensation power during the laser warm-up process: using the laser adjustment efficiency value before warm-up completion as a condition and the power output target value after warm-up completion as a target, the fundamental frequency power during the warm-up process is compensated and adjusted until the laser power output under the action of the laser adjustment efficiency value and the fundamental frequency power during the warm-up process reaches the power output target value after warm-up completion.

[0030] It should be noted that since the laser adjustment efficiency value changes with the duration of the warm-up process, in order to ensure that the laser power output under the action of the laser adjustment efficiency value and the fundamental frequency power reaches the target power output value after the warm-up is completed, the fundamental frequency compensation power of the laser during the warm-up process also needs to adapt to the laser adjustment efficiency value.

[0031] Step 106: Determine the laser's output power control command based on the fundamental frequency compensation power and frequency conversion target power during the warm-up process.

[0032] Output power control commands can be formed based on the fundamental frequency compensation power and frequency conversion target power during the warm-up process. These commands are adaptable to different laser adjustment efficiencies and output power conditions before and after laser warm-up. Output power control commands include those during the laser warm-up process and those after the laser warm-up is complete.

[0033] The scenarios for determining the laser's output power control command based on the fundamental frequency compensation power and frequency conversion target power during the warm-up process include: determining the laser's output power control command during the warm-up process based on the fundamental frequency compensation power; determining the laser's output power control command after the warm-up process is completed based on the frequency conversion target power; and determining the laser's output power control command based on both the output power control commands during and after the warm-up process.

[0034] The pre-compensated laser power control method provided in this embodiment determines the fundamental frequency compensation power for the laser warm-up process during laser startup, based on the laser adjustment efficiency value (such as acousto-optic crystal efficiency and frequency conversion efficiency) before the laser warm-up is completed and the target frequency conversion power after the warm-up is completed. This power compensation can specifically compensate for power fluctuations or attenuation during the laser warm-up process. Furthermore, based on the obtained fundamental frequency compensation power and the target frequency conversion power after the warm-up, an output power control command is determined that adapts to different laser adjustment efficiencies and output power conditions before and after the laser warm-up is completed. This ensures sufficient laser power output even when the laser adjustment efficiency value is low, effectively mitigating the problem of light polarization caused by temperature changes during laser startup, which prevents the output power from reaching the expected level. It guarantees the stability of the output power during laser startup, ensuring a smooth and continuous power transition before and after warm-up. Ideally, the laser can emit light immediately after a cold start and maintain stable power output, thereby significantly shortening the laser warm-up time and meeting higher requirements for laser processing.

[0035] Figure 2 This is a schematic diagram of the specific process of step 104 in one embodiment.

[0036] In this embodiment, as Figure 2 As shown, step 104 includes sub-steps 202 to 204.

[0037] Step 202: Determine the acousto-optic fundamental frequency power of the laser based on the frequency conversion efficiency and the target frequency conversion power.

[0038] The following scenarios, based on frequency conversion efficiency and target frequency conversion power, determine the acousto-optic fundamental frequency power of a laser: adjusting the laser spatial optical path, the temperature and angle of the frequency conversion crystal based on the frequency conversion efficiency to determine the adjusted frequency conversion efficiency; and determining the acousto-optic fundamental frequency power of the laser based on the adjusted frequency conversion efficiency and target frequency conversion power.

[0039] The specific scenarios for determining the acousto-optic fundamental frequency power of a laser based on frequency conversion efficiency and target frequency conversion power include: Pn1=Pm1 / Z1 In the formula, Pn1 represents the fundamental frequency power after acousto-optic conversion, Pm1 represents the target power of frequency conversion, and Z1 represents the adjusted frequency conversion efficiency.

[0040] Step 204: Determine the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency and the fundamental frequency power after acousto-optic operation.

[0041] The following scenarios determine the fundamental frequency compensation power for the laser's warm-up process based on the acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power: Adjusting the laser spatial optical path, the angle of the acousto-optic crystal, and the operating voltage based on the acousto-optic crystal efficiency to determine the adjusted acousto-optic crystal efficiency; and determining the fundamental frequency compensation power for the laser's warm-up process based on the adjusted acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power.

[0042] The specific scenarios for determining the fundamental frequency compensation power during the laser's warm-up process, based on the acousto-optic crystal efficiency and the post-acoustic-optic fundamental frequency power, include: Pn2=Pm2 / Z2 In the formula, Pn2 represents the fundamental frequency compensation power during the warm-up process, Pm2 represents the fundamental frequency power after the acousto-optic process, and Z2 represents the adjusted acousto-optic crystal efficiency.

[0043] By adjusting the laser's spatial optical path and laser processing crystal (such as adjusting the angle and temperature of the frequency conversion crystal to change the frequency conversion efficiency, and adjusting the angle and operating voltage of the acousto-optic crystal to change the acousto-optic crystal efficiency), and using the adjusted laser adjustment efficiency value as a condition and the target power output value after warm-up as the objective, the fundamental frequency power during the warm-up process is compensated and adjusted until the laser adjustment efficiency value and the laser power output under the action of the fundamental frequency power during the warm-up process reach the target power output value after warm-up. This effectively ensures the accuracy and efficiency of the fundamental frequency power compensation adjustment during the warm-up process.

[0044] Figure 3 This is a schematic diagram of the specific process of step 104 in one embodiment.

[0045] In this embodiment, as Figure 3 As shown, step 104 includes sub-steps 302 to 304.

[0046] In step 302, when the spatial optical path of the laser is a multi-stage frequency conversion optical path, the frequency conversion target power of the preceding optical path in the multi-stage frequency conversion optical path is determined based on the frequency conversion efficiency and frequency conversion target power of the subsequent optical path in the multi-stage frequency conversion optical path.

[0047] A multi-stage frequency conversion optical path can be a spatial propagation optical path formed by multiple frequency conversion crystal layers. The target power of the frequency conversion in the preceding stage optical path can be the desired output power achieved by the preceding stage optical path after frequency conversion processing in a multi-stage frequency conversion optical path.

[0048] The specific scenarios for determining the target frequency conversion power of the preceding optical stage in a multi-stage frequency conversion optical path, based on the frequency conversion efficiency and target power of the subsequent optical stage, include: Pj1=Pj2 / Zj2 In the formula, Pj1 represents the target frequency conversion power of the front-stage optical path, Zj2 represents the frequency conversion efficiency of the rear-stage optical path, and Pj2 represents the target frequency conversion power of the rear-stage optical path.

[0049] Step 304: Based on the target frequency conversion power and frequency conversion efficiency of the preceding optical path in the multi-stage frequency conversion optical path, determine the fundamental frequency compensation power of the laser's multi-stage frequency conversion optical path during the warm-up process.

[0050] Based on the target power and frequency conversion efficiency of the preceding optical stage in a multi-stage frequency conversion optical path, the specific scenarios for determining the fundamental frequency compensation power during the warm-up process of the laser's multi-stage frequency conversion optical path include: Pn2=Pj1 / Zj1 In the formula, Pn2 represents the fundamental frequency compensation power during the warm-up process, Pj1 represents the frequency conversion target power of the front-end optical path, and Zj1 represents the frequency conversion efficiency of the front-end optical path.

[0051] It should be noted that, since the nonlinear frequency conversion process of laser is polarization-sensitive, rotating the half-wave plate passing through the fundamental frequency laser (used to adjust the polarization state of the fundamental frequency laser) will have a significant impact on the frequency conversion efficiency. Secondly, the nonlinear frequency conversion process is also sensitive to the angle and temperature of the frequency conversion crystal. Adjustable frames and temperature control units are usually installed at the crystal, and changing the angle or temperature can also control the conversion efficiency. Finally, the input of the frequency conversion crystal of the subsequent stage in this multi-stage frequency conversion system is the output of the frequency conversion crystal of the previous stage (in some systems, the output of the previous stage and the remaining fundamental frequency are used as the input). Therefore, if the frequency conversion efficiency of the previous stage changes, the input of the subsequent stage will change, thus affecting the input power of the subsequent stage.

[0052] It should be understood that although the steps in the flowchart above are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least one sub-step described above may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps. It should be noted that the different embodiments described above can be combined with each other.

[0053] Figure 4 This is a schematic block diagram of the pre-compensated laser power control device in one embodiment.

[0054] In this embodiment, as Figure 4 As shown, the pre-compensated laser power control device is applied to machining trajectories including interpolation axes and coupling axes. The pre-compensated laser power control device includes an acquisition module 20, a fundamental frequency power determination module 40, and a power control module 60.

[0055] The acquisition module 20 is used to acquire the laser adjustment efficiency value of the multi-stage spatial optical path before the laser warm-up is completed, and the frequency conversion target power after the warm-up is completed. The laser adjustment efficiency value includes the acousto-optic crystal efficiency and the frequency conversion efficiency.

[0056] The warm-up power compensation module 40 is connected to the acquisition module 20 and is used to determine the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency, frequency conversion efficiency, and frequency conversion target power.

[0057] The power control module 60 is connected to the acquisition module 20 and the warm-up power compensation module 40. It is used to determine the output power control command of the laser based on the fundamental frequency compensation power and the frequency conversion target power during the warm-up process.

[0058] In this embodiment, each module is used to execute Figure 1 For details of each step in the corresponding embodiment, please refer to the documentation. Figure 1 as well as Figure 1 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0059] The pre-compensated laser power control device provided in this embodiment determines the fundamental frequency compensation power for the laser warm-up process during laser startup, based on the laser adjustment efficiency value (such as acousto-optic crystal efficiency and frequency conversion efficiency) before the laser warm-up is completed and the target frequency conversion power after the warm-up is completed. This power compensation is designed to address power fluctuations or attenuation during the laser warm-up process. Furthermore, based on the obtained fundamental frequency compensation power and the target frequency conversion power after the warm-up, the device determines output power control commands that adapt to different laser adjustment efficiencies and output power conditions before and after the laser warm-up is completed. This ensures sufficient laser power output even when the laser adjustment efficiency is low, effectively mitigating the problem of light polarization caused by temperature changes during laser startup, which prevents the output power from reaching the expected level. This guarantees the stability of the output power during laser startup, ensuring a smooth and continuous power transition before and after warm-up. Ideally, the laser can emit light immediately after a cold start and maintain stable power output, thereby significantly shortening the laser warm-up time and meeting higher requirements for laser processing.

[0060] Figure 5 This is a schematic block diagram of the specific structure of the warm-up power compensation module 40 in one embodiment.

[0061] In this embodiment, as Figure 5 As shown, the warm-up power compensation module 40 includes an acoustic-optical fundamental frequency compensation unit 420 and a warm-up power compensation unit 440.

[0062] The acousto-optic fundamental frequency compensation unit 420 is used to determine the acousto-optic fundamental frequency power of the laser based on the frequency conversion efficiency and the target power of the frequency conversion.

[0063] The warm-up power compensation unit 440 is connected to the acousto-optic fundamental frequency compensation unit 420 and is used to determine the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency and the acousto-optic fundamental frequency power.

[0064] In this embodiment, each unit is used to perform Figure 2 For details of each step in the corresponding embodiment, please refer to the documentation. Figure 2 as well as Figure 2 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0065] Figure 6 This is a schematic block diagram of the specific structure of the warm-up power compensation module 40 in one embodiment.

[0066] In this embodiment, as Figure 6 As shown, the warm-up power compensation module 40 includes a front-end power determination unit 430 and a warm-up power compensation unit 440.

[0067] The pre-stage power determination unit 430 is used to determine the target frequency conversion power of the pre-stage optical path in the multi-stage frequency conversion optical path based on the frequency conversion efficiency and target frequency conversion power of the subsequent optical path in the multi-stage frequency conversion optical path when the spatial optical path of the laser is a multi-stage frequency conversion optical path.

[0068] The warm-up power compensation unit 440 is connected to the pre-stage power determination unit 430 and is used to determine the fundamental frequency compensation power of the multi-stage frequency conversion optical path of the laser during the warm-up process based on the frequency conversion target power and frequency conversion efficiency of the pre-stage optical path in the multi-stage frequency conversion optical path.

[0069] In this embodiment, each unit is used to perform Figure 3 For details of each step in the corresponding embodiment, please refer to the documentation. Figure 3 as well as Figure 3 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0070] The units in this embodiment are used to perform the steps in the corresponding embodiments described above. For details, please refer to the relevant descriptions in the corresponding embodiments described above, which will not be repeated here.

[0071] The division of the modules in the above-described pre-compensated laser power control device is for illustrative purposes only. In other embodiments, the pre-compensated laser power control device can be divided into different modules as needed to complete all or part of the functions of the above-described pre-compensated laser power control device.

[0072] Specific limitations regarding the pre-compensated laser power control device can be found in the limitations of the pre-compensated laser power control method described above, and will not be repeated here. Each module in the aforementioned pre-compensated laser power control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in hardware or independently of the processor in the processing equipment, or stored in software in the memory of the processing equipment, so that the processor can call and execute the corresponding operations of each module.

[0073] Figure 7 This is a schematic diagram of the processing equipment in one embodiment.

[0074] In this embodiment, as Figure 7 As shown, the processing equipment includes a memory A1 and a processor A2; it may also include a display screen A3, a communication interface, and a bus. Optionally, the processing equipment may be a laser processing equipment.

[0075] The memory A1, processor A2, display screen A3, and communication interface can communicate with each other via a bus; the display screen A3 is configured to display the user operation interface preset in the initial setting mode, and the display screen A3 can also display the process control window; the communication interface can transmit information; the memory A1 stores computer programs, and the processor A2 can call the logical instructions in the memory A1 to execute the methods in the above embodiments.

[0076] Furthermore, the logic instructions in the aforementioned memory A1 can be implemented as software functional units and, when sold or used as independent workpieces, can be stored in a computer-readable storage medium.

[0077] Memory A1, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, such as program instructions or modules corresponding to the methods in the embodiments of this application. Processor A2 executes functional applications and data processing by running the software programs, instructions, or modules stored in memory A1, thereby implementing the methods in the above embodiments.

[0078] Memory A1 includes a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, memory A1 may include high-speed random access memory and may also include non-volatile memory.

[0079] Processor A2 can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), or field-programmable gate arrays (FPGAs). Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0080] This application also provides a computer-readable storage medium. One or more non-volatile computer-readable storage media containing computer-executable instructions, which, when executed by one or more processors, cause the processors to perform the methods described above.

[0081] This application also provides a computer program product that, when run on a terminal device, causes the terminal device to execute the methods described in the above embodiments.

[0082] The pre-compensated laser power control method, device, processing equipment, and storage medium provided in the above embodiments determine the fundamental frequency compensation power for the laser warm-up process during laser startup, based on the laser adjustment efficiency value (such as acousto-optic crystal efficiency and frequency conversion efficiency) before the laser warm-up is completed and the target frequency conversion power after the warm-up is completed. This power compensation power is designed to address power fluctuations or attenuation during the laser warm-up process. Furthermore, based on the obtained fundamental frequency compensation power and the target frequency conversion power after the warm-up, an output power control command is determined that adapts to different laser adjustment efficiencies and output power conditions before and after the laser warm-up is completed. This ensures sufficient laser power output even when the laser adjustment efficiency value is low, effectively mitigating the problem of light polarization caused by temperature changes during laser startup, which prevents the output power from reaching the expected level. It guarantees the stability of the output power during laser startup, ensuring a smooth and continuous power transition before and after warm-up. Ideally, the laser can emit light immediately after a cold start and maintain stable power output, significantly shortening the laser warm-up time and meeting higher requirements for laser processing. This has significant economic and practical value.

[0083] Any references to memory, storage, databases, or other media used in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which is used as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM).

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method of pre-compensating laser power control, characterized by, include: The laser adjustment efficiency value of the multi-stage spatial optical path before the laser warm-up is completed, and the frequency conversion target power after the warm-up is completed, are obtained. The laser adjustment efficiency value includes the acousto-optic crystal efficiency and the frequency conversion efficiency. The fundamental frequency compensation power of the laser during the warm-up process is determined based on the acousto-optic crystal efficiency, the frequency conversion efficiency, and the target frequency conversion power. The output power control command of the laser is determined based on the fundamental frequency compensation power during the warm-up process and the target power for frequency conversion.

2. The pre-emphasis laser power control method of claim 1, wherein, Determining the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency, the frequency conversion efficiency, and the target frequency conversion power includes: The acousto-optic fundamental frequency power of the laser is determined based on the frequency conversion efficiency and the frequency conversion target power. The fundamental frequency compensation power of the laser during the warm-up process is determined based on the acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power.

3. The pre-emphasis laser power control method of claim 2, wherein, Determining the acousto-optic fundamental frequency power of the laser based on the frequency conversion efficiency and the target frequency conversion power includes: Based on the frequency conversion efficiency, the temperature and angle of the laser spatial optical path and the frequency conversion crystal are adjusted to determine the adjusted frequency conversion efficiency. The acousto-optic fundamental frequency power of the laser is determined based on the adjusted frequency conversion efficiency and the frequency conversion target power.

4. The pre-emphasis laser power control method of claim 3, wherein, Determining the acousto-optic fundamental frequency power of the laser based on the frequency conversion efficiency and the target frequency conversion power includes: Pn1=Pm1 / Z1 In the formula, Pn1 represents the fundamental frequency power after acousto-optic conversion, Pm1 represents the target power of frequency conversion, and Z1 represents the adjusted frequency conversion efficiency.

5. The pre-emphasis laser power control method of claim 2, wherein, The step of determining the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power includes: Based on the acousto-optic crystal efficiency, the laser spatial optical path, the angle of the acousto-optic crystal, and the operating voltage are adjusted to determine the adjusted acousto-optic crystal efficiency. The fundamental frequency compensation power of the laser during the warm-up process is determined based on the adjusted acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power.

6. The pre-emphasis laser power control method of claim 5, wherein, The step of determining the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency and the acousto-optic post-fundamental frequency power includes: Pn2=Pm2 / Z2 In the formula, Pn2 represents the fundamental frequency compensation power during the warm-up process, Pm2 represents the fundamental frequency power after the acousto-optic process, and Z2 represents the adjusted acousto-optic crystal efficiency.

7. The pre-emphasis laser power control method of claim 2, wherein, The step of determining the fundamental frequency compensation power of the laser during the warm-up process based on the frequency conversion efficiency and the target frequency conversion power further includes: When the spatial optical path of the laser is a multi-stage frequency conversion optical path, the frequency conversion target power of the first-stage optical path in the multi-stage frequency conversion optical path is determined according to the frequency conversion efficiency and frequency conversion target power of the subsequent optical path in the multi-stage frequency conversion optical path. Based on the target frequency conversion power and frequency conversion efficiency of the preceding optical path in the multi-stage frequency conversion optical path, the fundamental frequency compensation power of the multi-stage frequency conversion optical path of the laser during the warm-up process is determined.

8. A pre-compensating laser power control device, characterized by, include: The acquisition module is used to acquire the laser adjustment efficiency value of the multi-stage spatial optical path before the laser warm-up is completed, and the frequency conversion target power after the warm-up is completed. The laser adjustment efficiency value includes the acousto-optic crystal efficiency and the frequency conversion efficiency. A warm-up power compensation module, connected to the acquisition module, is used to determine the fundamental frequency compensation power of the laser during the warm-up process based on the acousto-optic crystal efficiency, the frequency conversion efficiency, and the frequency conversion target power. The power control module, connected to the acquisition module and the warm-up power compensation module, is used to determine the output power control command of the laser based on the fundamental frequency compensation power during the warm-up process and the frequency conversion target power.

9. A processing apparatus characterized by comprising: The device includes a memory and a processor, wherein the memory stores a computer program that, when executed by the processor, causes the processor to perform the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 7.

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