120 W high repetition rate Nd:YVO4 MOPA laser with a Nd:YAG cavity-dumped seed laser

被引：0
|
作者：
X. Fu
Q. Liu
X. Yan
J. Cui
M. Gong
机构：
[1] Tsinghua University,Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instruments and Mechanology
来源：
Applied Physics B | 2009年 / 95卷
关键词：
42.55.Xi; 42.60.Fc;
D O I：
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学科分类号：
摘要：
A master oscillator power amplifier (MOPA) system in which the output from an end-pumped Nd:YAG oscillator cavity dumped at 500 kHz is scaled up by a four-stage Nd:YVO4 amplifier is reported. Decrease in extraction efficiency of the amplifier chain with crystals different from that in the oscillator was analyzed. With the 5.4 W seed output, 118 W of power was extracted from the amplifier chain at the pump power of 345 W, with an extraction efficiency of 34.2% and an overall optical–optical efficiency of 30.9% for the MOPA system. The beam quality factors were measured as Mx2=1.45 and My2=1.59 in two orthogonal directions, respectively.
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页码：63 / 67
页数：4
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