Stable High Power and High Beam Quality Diode-Side-Pumped Continuous-Wave Intracavity Frequency-Doubled Nd：YAG Laser  

作　　者：程贤坤 周勇 崔前进 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, Beijing 100190 [2]Research Center for Laser Physics and Technique, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 [3]Graduate School of the Chinese Academy of Sciences, Beijing 100190

出　　处：《Chinese Physics Letters》2009年第3期95-97,共3页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Programme of China under Grant Nos 2004CB619006 and 2004CB619001, and the National Natural Science Foundation of China under Grant Nos 60578030 and 50590404.

摘　　要：We report a stable high power and high beam quality diode-side-pumped cw green laser from intracavity frequency-doubled Nd： YAG laser with KTP. By using a L-shaped concave-convex resonator, designed with two Nd：YAG rods birefringence compensation, a large fundamental mode size in the laser crystal and a tight focus in the nonlinear crystal could be obtained simultaneously. The green laser delivers a maximum 532nm output power of 23.2 W. Under 532nm output power of 20.9 W, the beam quality factor is measured to be 4.1, and the fluctuation of the output power is less than 1.4% in an hour.We report a stable high power and high beam quality diode-side-pumped cw green laser from intracavity frequency-doubled Nd： YAG laser with KTP. By using a L-shaped concave-convex resonator, designed with two Nd：YAG rods birefringence compensation, a large fundamental mode size in the laser crystal and a tight focus in the nonlinear crystal could be obtained simultaneously. The green laser delivers a maximum 532nm output power of 23.2 W. Under 532nm output power of 20.9 W, the beam quality factor is measured to be 4.1, and the fluctuation of the output power is less than 1.4% in an hour.

分 类 号：O471.4[理学—半导体物理] TN241[理学—物理]