一种风冷近基模小型固体电光调Q激光器研究  

Research on a compact solid-state electro-optical Q-switched air-cooled near-fundamental mode laser

作　　者：吕锋 梁为 李靖 LYU Feng;LIANG Wei;LI Jing(Wuhan Huari Precision Laser Co.Ltd.,Wuhan 430000,China)

机构地区：[1]武汉华日精密激光股份有限公司,武汉430000

出　　处：《激光技术》2025年第2期284-288,共5页Laser Technology

摘　　要：为了获得一种可在测距、目标指示等场景下使用的激光器,采用光线传输矩阵仿真分析了望远镜腔,用热阻计算分析了体内传热过程和表面散热过程,进行了理论分析和实验验证。获得了一种可在40℃环境温度中运行的风冷近基模小型固体电光调Q激光器,并取得了重复频率10 Hz、单脉冲能量100 mJ、光束质量因子M_(2)=1.31、脉宽10 ns、发散角0.6 mrad的1064 nm激光输出。结果表明,该激光器适合在测距、目标指示等要求激光器具有高单脉冲能量、高峰值功率、高光束质量等特点的场景下使用。这一结果对激光测距、激光指示等应用方面的发展有一定帮助。To achieve a laser capable of functioning in applications such as distance measurement and target designation,two methodologies were primarily utilized:The simulation analysis of the ray transfer matrix for the telescope cavity and the theoretical calculation of steady-state thermal resistance to analyze both the internal heat transfer and surface heat dissipation processes.Through rigorous theoretical examination and empirical validation,a compact solid-state electro-optical Q-switched air-cooled near-fundamental mode laser capable of operating at an ambient temperature of 40℃was successfully developed.Output laser at 1064 nm was characterized by a repetition rate of 10 Hz,a single pulse energy of 100 mJ,a beam quality factor M 2 of 1.31,a pulse duration of 10 ns,and a divergence angle of 0.6 mrad.The findings demonstrate that this laser is optimally suited for applications that demand lasers with high single-pulse energy,peak power,and exceptional beam quality,such as in laser ranging and targeting.This advancement holds significant implications for the evolution of laser-based distance measurement and target indication technologies.

关 键 词：激光器 风冷激光器 光线传输矩阵 稳态热阻 望远镜腔 仿真模拟 

分 类 号：TN248.1[电子电信—物理电子学]