Efficient high-power UV laser generated by an optimized flat-flat actively Q-switched laser with extra-cavity harmonic generations

被引：8
作者：
Huang, Y. J. [1 ]
Chiang, P. Y. [1 ]
Liang, H. C. [1 ]
Su, K. W. [1 ]
Chen, Y. F. [1 ]
机构：
[1] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30050, Taiwan
来源：
OPTICS COMMUNICATIONS | 2012年 / 285卷 / 01期
关键词：
Diode-pumped solid-state laser; Acousto-optically Q-switching; Parasitic lasing effect; Extra-cavity second and third harmonic generation; ND-GDVO4; LASER; STABILIZATION; PRELASE; STATE;
D O I：
10.1016/j.optcom.2011.09.002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the parasitic lasing effect in the high-power actively Q-switched laser with a flat-flat resonator. The parasitic lasing effect in the low-Q stage is found to lead to long tails in the output pulses, corresponding to the peak-power reduction. We experimentally determine the shortest cavity length without the parasitic lasing effect to optimize the performance of the high-power actively Q-switched laser with a flat-flat cavity. We further use the optimized fundamental laser to generate green and UV lasers by extra-cavity harmonic generations. At a pump power of 44 W, the output powers at 355 nm and 532 nm as high as 6.65 W and 8.38 W are obtained at a pulse repetition rate of 40 kHz. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：59 / 63
页数：5
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