High average power Q-switched green beam generation by intracavity frequency doubling of diode-side-pumped Nd:YAG/HGTR-KTP laser

被引:19
作者
Chen, Haowei
Chen, Xiuyan
Li, Xiu
Hou, Yao
Wang, Siyuan
Ren, Zhaoyu
Bai, Jintao [1 ]
机构
[1] NW Univ Xian, Inst Photon & Photo Technol, Xian 710069, Peoples R China
关键词
solid-state laser; stability; intracavity doubling; YAG LASER; CRYSTAL;
D O I
10.1016/j.optlastec.2008.05.003
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
To obtain high power and high beam quality second harmonic generation, a Q-switched system has been demonstrated by intracavity frequency doubling of two diode-side-pumped Nd:YAG modules with double AO-modulators in an astigmatism compensated cavity geometry. A maximum average frequency doubled power of 185W is obtained when the pumping power is 600W for each module. The corresponding optical-to-optical conversion efficiency is 15.4% and the pulse width is 180ns at a repetition rate of 10 kHz. An instability of 2.5% was measured over a period of 2 h and the beam quality factors were measured to be M-chi(2) = 9.52, M-y(2) = 9.86 the maximum output power. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1 / 4
页数:4
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