High repetition rate and large energy passively Q-switched laser side-pumped by continous-wave laser diode

被引：0
|
作者：
Guo J. [1 ]
Jin G. [1 ]
Wang C. [1 ]
Chen X. [1 ]
Yu Y. [1 ]
Wang Y. [1 ]
Hao D. [1 ]
机构：
[1] School of Science, Changchun University of Science and Technology, Changchun
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / SUPPL. 1期
关键词：
High repetition rate and large energy; Laser diode side-pumped; Lasers; Passive Q-switch;
D O I：
10.3788/CJL201037s1.0024
中图分类号：
学科分类号：
摘要：
High repetition rate and large energy passively Q-switched Nd:YAG laser side-pumped by continous-wave (CW) laser diode is reported by using Cr4+:YAG crystal as saturable absorbers. Regarding operation material as thermal thick lens, the laser beam parameters of plane-plane cavity, plano-concave cavity and plano-convex cavity are calculated according to the ABCD matrix theory of resonators. By comparing the fundamental mode volume, plano-convex cavity is selected. A high repetition rate and large energy passively Q-switched laser beam is obtained, and the TEM00 mode is achieved. A single pulse energy of 2.46 mJ, peak power of 24.36 kW, repetition rate of 4.22 kHz, pulse width of 101 ns are obtained at a pump power of 136.20 W, the amplitude fluctuation and frequency fluctuation are about 5%, the corresponding M2 factor is about 1.3, and the beam divergence angle of far-field is less than 1.5 mrad.
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页码：24 / 28
页数：4
相关论文
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