大能量短纳秒脉冲Nd∶YAG激光  

High Energy Side-Pumped Narrow Nanosecond Pulses Nd∶YAG Laser Amplifier

作　　者：杨熙航 周子涵 王志敏[1] 崔大复[1,2] 彭钦军[1,2] Yang Xihang;Zhou Zihan;Wang Zhimin;Cui Dafu;Peng Qinjun(Key Laboratory of Solid State Laser,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory of Function Crystal and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Institute of Optical Physics and Engineering Technology,Qilu Zhongke,Jinan 250000,Shandong,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院理化技术研究所固体激光重点实验室,北京100190 [2]中国科学院理化技术研究所功能晶体与激光技术重点实验室,北京100190 [3]齐鲁中科光物理与工程技术研究所,山东济南250000 [4]中国科学院大学,北京100049

出　　处：《激光与光电子学进展》2023年第9期327-331,共5页Laser & Optoelectronics Progress

摘　　要：报道了一台大能量高光束质量激光二极管侧面泵浦的短纳秒脉冲Nd∶YAG激光器。激光器包括纳秒电光调Q振荡器和两级侧面泵浦Nd∶YAG棒状放大器。振荡级采用Nd∶YVO4晶体作为增益介质可减少热致双折射效应并降低腔内损耗。放大级采用两级串联放大的方式以提高放大倍数。最终,在脉冲重复频率为10 Hz时,获得了最大单脉冲能量为377 mJ、脉冲宽度为5.9 ns、平均光束质量因子为1.86的1064 nm激光输出。这种大能量、窄脉宽、高光束质量激光器有望用于远距离高精度的激光测距。We reported a high energy,high beam quality LD sidepumped narrow nanosecond pulses Nd∶YAG laser amplifier.The amplification system consists of a nanosecond electrooptic Qswitched oscillator and a twostage sidepumped Nd∶YAG rod amplifier.The oscillation stage uses Nd∶YVO4 crystal as the gain medium to reduce thermally induced birefringence and reduce intracavity losses.The amplification stage adopts a twostage amplification structure to improve the magnification.Finally,when the pulse repetition frequency is 10 Hz,1064 nm laser output with maximum single pulse energy of 377 mJ,pulse width of 5.9 ns,and average beam quality factor of 1.86 is obtained.

关 键 词：激光器 大能量 电光调Q 窄纳秒脉宽 激光放大器 

分 类 号：TN248.2[电子电信—物理电子学]