高环境适应性全固态激光器

doi:10.3969/j.issn.1007-5461.2023.06.006

量子电子学报 ›› 2023, Vol. 40 ›› Issue (6): 858-867.doi: 10.3969/j.issn.1007-5461.2023.06.006

高环境适应性全固态激光器

段丹阳 1, 董云升 2*, 张天舒 1,2, 吕立慧 1, 付毅宾 2, 高慧慧 2, 裴永康 3

( 1 安徽大学物质科学与信息技术研究院, 安徽合肥 230601; 2 中国科学院合肥物质科学研究院安徽光学精密机械研究所环境光学与技术重点实验室, 安徽合肥 230031; 3 中科环光技术有限公司, 安徽合肥 230031 )

收稿日期:2021-10-08 修回日期:2021-11-17 出版日期:2023-11-28 发布日期:2023-11-28
通讯作者: E-mail: ysdong@aiofm.ac.cn E-mail:E-mail: ysdong@aiofm.ac.cn
作者简介:段丹阳 ( 1996 - ), 女, 安徽亳州人, 研究生, 主要从事全固态激光器方面的研究。E-mail: duan7354@163.com
基金资助:
安徽省重点研究与开发计划 (202004i07020002)

High environmental adaptability all⁃solid⁃state laser

DUAN Danyang 1 , DONG Yunsheng 2*, ZHANG Tianshu 1,2 , LYU Lihui 1 , FU Yibin 2 , GAO Huihui 2 , PEI Yongkang

( 1 Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, China; 2 Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 3 Zhongke Optical Technology Co., LTD, Hefei 230031, China )

Received:2021-10-08 Revised:2021-11-17 Published:2023-11-28 Online:2023-11-28

摘要/Abstract

摘要： 针对车载激光雷达对激光器光源的应用需求, 设计了一种高环境适应性、高重频的全固态激光器。设计上, 采用ABCD传输矩阵理论对谐振腔进行计算和分析, 实现了激光介质内泵浦光和振荡光最佳的模式匹配; 实验上, 进行了谐振腔的胶水稳定性测试和局部温控测试，从工艺上提高谐振腔的稳定性。通过测量激光器在高温、低温、振动等不同工况下的功率稳定性，证明了激光器具有高环境适应性。该激光器基于风冷散热实现了整机在 −10 o C至 55 o C温度范围内和公路谱振动条件下的稳定工作。在泵浦功率为8.31 W、声光调Q模式下, 获得了脉宽为7 ns、重复频率为4 kHz、平均功率为0.95 W、单脉冲能量为0.24 mJ的532 nm绿光输出，满足激光雷达车载的应用需求。

关键词: 激光技术, 模式匹配, 腔内倍频, 声光调Q , 宽温度范围

Abstract: An all-solid-state laser with high environment adaptability and high repetition frequency is designed to meet the application requirements of laser source for vehicle-mounted lidar. In terms of design, ABCD transmission matrix theory is used to calculate and analyze the resonant cavity, thus realizing the best mode matching between the pumping light and the oscillating light in the laser medium. In the experiment, glue stability test and local temperature control test are carried out to improve the stability of the resonator. By measuring the power stability of the laser under different working conditions such as high temperature, low temperature and vibration, it is proved that the laser has high environmental adaptability. It is demonstrated that based on air-cooled heat dissipation, the laser can achieve stable operation of the whole machine in the temperature range from −10 o C to 55 o C and under the condition of road spectrum vibration. Under the pump power of 8.31 W and acousto-optic Q-switched mode, a 532 nm green light output with pulse width of 7 ns, repetition frequency of 4 kHz, average power of 0.95 W and single pulse energy of 0.24 mJ is obtained, meeting the application requirements of mobile lidar.

Key words: laser techniques, pattern matching, intracavity frequency doubling, acousto-optic Q modulation, wide temperature range

中图分类号:

TN248.1

段丹阳, 董云升, 张天舒, 吕立慧, 付毅宾, 高慧慧, 裴永康 . 高环境适应性全固态激光器[J]. 量子电子学报, 2023, 40(6): 858-867.

DUAN Danyang , DONG Yunsheng , ZHANG Tianshu , , LYU Lihui , FU Yibin , GAO Huihui , PEI Yongkang . High environmental adaptability all⁃solid⁃state laser[J]. Chinese Journal of Quantum Electronics, 2023, 40(6): 858-867.

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高环境适应性全固态激光器

High environmental adaptability all⁃solid⁃state laser

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