183 W TEM00 mode acoustic-optic Q-switched MOPA laser at 850 kHz

被引：40

作者：

Liu, Qiang ^{[1
]}

Yan, Xingpeng ^{[1
]}

Fu, Xing ^{[1
]}

Gong, Mali ^{[1
]}

Wang, Dongsheng ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Tribol, Ctr Photon & Elect, Dept Precis Instruments, Beijing 100084, Peoples R China

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 07期

基金：

中国国家自然科学基金;

关键词：

END-PUMPED LASERS; HEAT-GENERATION; ND-YVO4; LASER; SYSTEM;

D O I：

10.1364/OE.17.005636

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a high-power, high-repetition-rate TEM00 mode MOPA laser using acoustic-optic Q-switching. Seed laser from the dual-endpumped Nd:YVO4 oscillator was scaled up to 183.5 W average power at 850 kHz after behind amplified by the four-stage power amplifiers. The stable Q-switching operation worked at different pulse repetition rate from 60 kHz to 850 kHz while the pulse duration increased from 12.8 ns to 72 ns. The beam quality was near diffraction-limit with M-2 factors measured as M-x(2) = 1.28 and M-y(2) = 1.21. In CW operation, 195 W TEM00 mode output was achieved corresponding to the total optical-optical efficiency of 44.7% and the absorbed pump power to output power efficiency of 53.3% respectively. (C) 2009 Optical Society of America

引用

页码：5636 / 5644

页数：9

共 23 条

[1] APPLICATION OF A LASER RANGING SYSTEM TO THE METROLOGIC CERTIFICATION OF SATELLITE RADAR MEASUREMENT SYSTEMS [J].