中国光学（中英文）2026，Vol.19Issue(3)：503-514,12.DOI:10.37188/CO.2025-0147
基于高温LDAs泵浦Zigzag Nd:YAG大能量脉冲激光器
High-temperature LDAs-pumped Zigzag Nd:YAG high-energy pulse laser
摘要
Abstract
To achieve simultaneous lightweight design and high-energy output under special environmental conditions,a compact,water-cooling-free high-energy pulsed laser system based on high-temperature laser diode array(LDAs)side-pumped zigzag Nd:YAG crystals is demonstrated for operation in demanding envir-onments.The zigzag beam propagation increases the effective gain length,while symmetric LDAs pumping of two Nd:YAG crystals improves gain uniformity.Thermal isolation between the crystals and LDAs is im-plemented,with independent temperature control achieved using thermoelectric coolers(TEC)for the Nd:YAG crystals and forced air cooling for the LDAs.A potassium dideuterium phosphate(DKDP)crystal is employed for electro-optic Q-switching.At a repetition rate of 100 Hz without water cooling,a maximum pulse energy of 129.2 mJ with a pulse duration of 9.0 ns is obtained,corresponding to an optical-to-optical efficiency of 9.6%and a slope efficiency of 13.1%,with energy stability better than 2.26%.An output en-ergy of 87.6 mJ is achieved at 150 Hz.This system provides a compact and environmentally robust light source for laser ranging and illumination applications.关键词
半导体激光器阵列/侧面泵浦/Zigzag/电光调Q/无水冷Key words
laser diode arrays/side-pumping/Zigzag/electro-optic Q-switching/without water cooling分类
信息技术与安全科学引用本文复制引用
赵千喜,王鹤鹏,吴从正,李岩,邹永刚,徐英添,张崇..基于高温LDAs泵浦Zigzag Nd:YAG大能量脉冲激光器[J].中国光学（中英文）,2026,19(3):503-514,12.基金项目
吉林省中青年科技创业卓越人才项目(No.20220508138RC)Supported by Outstanding Young and Middle-aged Talents Program for Technology Entrepreneurship of Jilin Province(No.20220508138RC) （No.20220508138RC）
