摘要
采用半导体激光抽运单纵模激光器作为主振荡器、三级氙灯抽运的Nd∶YAG放大器及受激布里渊散射(SBS)位相共轭镜组成双通放大MOPA系统 ,并采用像传递、热退偏补偿及消除激光器自激等关键技术 ,完成了一套高重复频率大能量单纵模激光器。在频率为 4 0Hz时 ,获得输出能量 >4 5 0mJ,能量输出稳定性为 3 5 %(RMS) ,脉冲宽度约 8ns,光束质量为近衍射极限 (<1 3衍射极限 )
A solid-state master oscillator power amplifier (MOPA) system is built, which consists of a single-longitudinal-mode resource pumped by semiconductor laser, three amplifiers pumped by xenon lamps which beam light passes double times and the phase conjugating SBS-mirror to compensate the phase distortions. In this laser system, image transfer, thermal depolarization compensation, elimination of self-lasing and other key technologies are employed to improve the quality of the output beam. In addition, the output energies over 450 mJ are obtained at 40 Hz, with output energy stability of 3.5% (RMS), pulse width about 8 ns and mode quality <1.3 DL.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2003年第10期885-889,共5页
Chinese Journal of Lasers
关键词
激光技术
单纵模
热退偏补偿
像传递
受激布里渊散射(SBS)位相共轭
Brillouin scattering
Error compensation
Mirrors
Optical phase conjugation
Power amplifiers
Pumping (laser)
Semiconductor lasers
Xenon
