High power high beam quality diode-pumped 1319-nm Nd:YAG oscillator-amplifier laser system  

作　　者：谢仕永 鲁远甫 马庆磊 王鹏远 申玉 宗楠 杨峰 薄勇 彭钦军 崔大复 许祖彦 

机构地区：[1]Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences [2]Graduate University of the Chinese Academy of Sciences [3]Research Centre of Laser Physics and Technique, Key Lab of Functional Crystal and Laser Technology,Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2010年第6期334-338,共5页中国物理B（英文版）

基　　金：Project supported by the National High Technology Research and Development Program and the National Natural Science Foundation of China (Grant No. 60508013)

摘　　要：This paper demonstrated a high power and high beam quality diode-pumped 1319-nm Nd：YAG master oscillator-power amplifier laser system. A thermally near-unstable resonator with four-rod birefringence compensation fiat-fiat cavity was adopted as the master oscillator. A solid etalon was inserted in the unidirectional ring resonator to compress the laser linewidth. Under a repetition rate of 500 Hz and pulse width of 160 μs, the master oscillator delivers an average output power of 16.8 W at 1319 nm with linear polarisation, beam quality factor M^2=1.16 and linewidth of 3.2 GHz. A double-pass power amplifier with two amplifier stages was employed for higher power scaling and the output power was amplified to be 25.9 W with M^2 = 1.43.This paper demonstrated a high power and high beam quality diode-pumped 1319-nm Nd：YAG master oscillator-power amplifier laser system. A thermally near-unstable resonator with four-rod birefringence compensation fiat-fiat cavity was adopted as the master oscillator. A solid etalon was inserted in the unidirectional ring resonator to compress the laser linewidth. Under a repetition rate of 500 Hz and pulse width of 160 μs, the master oscillator delivers an average output power of 16.8 W at 1319 nm with linear polarisation, beam quality factor M^2=1.16 and linewidth of 3.2 GHz. A double-pass power amplifier with two amplifier stages was employed for higher power scaling and the output power was amplified to be 25.9 W with M^2 = 1.43.

关 键 词：master oscillator-power amplifier system Nd：YAG ring laser 

分 类 号：TN752[电子电信—电路与系统] TN24