An integrated multi-parameter synchronous testing system for fiber lasers
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摘要: 设计并实现了一种用于光纤激光器的多参量一体化同步测试系统，能够实现激光器功率、光谱、时域和光束质量的同步测量。通过外部接口、内部光路和控制软件的协同设计，该系统支持80 W至10 kW输出功率范围的光纤激光器测试。用户只需将待测激光器的光纤端帽（QBH）接入系统，通过上位机软件控制，即可实现光纤激光器的多参数同步测试而无需手动调节光路。测试完成后，系统会自动调用和处理原始测量数据并生成测试报告。该系统能够显著提升光纤激光器多参数测试效率并大幅降低数据处理复杂度，为科研和工业激光测试提供了高效、可靠的解决方案。Abstract:
Background Fiber lasers have been widely used in numerous fields such as industrial processing and scientific research detection, due to their significant advantages including high efficiency, low cost, and miniaturization. In the R&D (Research and Development) and mass production of fiber lasers, the synchronous testing of core performance indicators such as power, spectrum, time-domain characteristics, and beam quality is a key technical support. It enables comprehensive evaluation of the device’s overall performance, accurate localization of design defects, optimization of production process parameters, and guarantee of consistent product delivery. However, the traditional testing mode requires temporarily building a dedicated test system for each laser under test. It has problems such as long time consumption, cumbersome operation, and low testing efficiency, making it difficult to meet the needs of large-scale production and high-efficiency R&D.Purpose To address the above issues, this paper proposes an integrated synchronous testing system for multi-parameter fiber lasers. The system aims to realize the synchronous acquisition and testing of multiple indicators, including power, spectrum, time-domain characteristics, and beam quality. It further improves the scientificity of the comprehensive performance evaluation of lasers, provides reliable technical support for production practice and scientific research in related fields, and achieves the core goals of improving testing efficiency and simplifying testing processes.Methods The system achieves the integrated integration of multi-module hardware testing equipment, as well as standardized interfaces and external connections, based on optical principle design and precision mechanical structure design. From the perspective of safe operation, an emergency shutdown device for abnormal working conditions is equipped to ensure the safety of the system and the laser under test during the testing process. The control software adopts LabVIEW multi-threading technology to realize the synchronous acquisition and real-time transmission of various parameters.Results The system can adapt to the testing needs of fiber lasers with an output power range of 80 W to 10 kW. During testing, users only need to connect the fiber end cap of the laser under test to the system, and can start multi-parameter synchronous testing through the upper computer software without manual intervention in the optical adjustment link. After the test, the system can automatically complete the analysis and processing of raw data and generate a standardized test report. Verification experiments conducted with a 10 kW fiber laser as the test object show that the system has good operability, reliability, test repeatability, and technical feasibility.Conclusions The system significantly improves the efficiency of multi-parameter testing of fiber lasers and greatly reduces the complexity of data processing, providing an efficient and reliable solution for scientific research and industrial laser testing.-
Key words:
- fiber laser /
- laser parameters /
- integrated testing /
- control soft /
- test report
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图 1 多参量一体化同步测试系统原理示意图
Figure 1. Schematic diagram of multi-parameter integrated synchronized testing system
图 2 多参量一体化同步测试系统整体硬件设计
Figure 2. Overall hardware design of multi-parameter integrated synchronized testing system
图 3 多参量一体化同步测试系统上位机操作界面
Figure 3. Upper-computer operation interface of multi-parameter integrated synchronized testing system
表 1 多参量一体化同步测试系统功能与测量范围
Table 1. Function and measurement range of the multi-parameter integrated synchronous testing system
parameter function measurement range power power meter control; power data acquisition, storage, and plotting; real-time display of maximum, minimum, average and standard deviation values of power 80 W～10 kW spectrum spectrometer control; spectrum data acquisition, storage, and plotting; real-time display of central wavelength, 3dB linewidth, average central wavelength, and standard deviation of central wavelength 600～ 1700 nmtime domain oscilloscope control; temporal data acquisition, storage, and plotting; real-time display of peak-to-peak, minimum, maximum, and average values in time domain DC～1 GHz beam quality beam quality analyzer control; beam quality analyzer data retrieval, storage, and plotting; real-time display of beam quality in X/Y directions, average beam quality, and standard deviation of beam quality M2: 1～50 
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