High-pulse-energy passively Q-switched sub-nanosecond MOPA laser system operating at kHz level

被引：13
|
作者：
Zhou, Yiping [1 ]
Li, Xudong [1 ]
Xu, Haobo [1 ]
Yan, Renpeng [1 ]
Jiang, Yugang [2 ]
Fan, Rongwei [1 ]
Chen, Deying [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150080, Peoples R China
[2] Tianjin Jinhang Tech Phys Inst, Tianjin Key Lab Opt Thin Film, Tianjin 300308, Peoples R China
来源：
OPTICS EXPRESS | 2021年 / 29卷 / 11期
基金：
中国国家自然科学基金;
关键词：
HIGH-PEAK-POWER; MICROLASER; COMPOSITE; AMPLIFIER; CERAMICS; NM;
D O I：
10.1364/OE.425586
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A passively Q-switched sub-nanosecond master oscillator power amplifier (MOPA) laser system at 1064 nm has been reported in this paper. The master oscillator was a passively Q-switched YAG/Nd:YAG/Cr4+:YAG microchip laser, yielding a pulse energy of 0.14 mJ and a pulse width of similar to 490 ps at repetition rates of 500 Hz and 1 kHz. After passing a double-pass side-pumped Nd:YAG amplification system, the pulse energy reached 7.6 mJ and 1.7 mJ at 500 Hz and 1 kHz, respectively. The spatial beam deformation caused by the thermally induced birefringence was investigated numerically and experimentally. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：17201 / 17214
页数：14
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