高功率窄线宽准连续波二极管泵浦TEM00 1064纳米钕钇铝石榴石环形激光器。

High-power narrow-linewidth quasi-CW diode-pumped TEM00 1064 nm Nd:YAG ring laser.

作者信息

Liu Yuan, Wang Bao-shan, Xie Shi-yong, Bo Yong, Wang Peng-yuan, Zuo Jun-wei, Xu Yi-ting, Xu Jia-lin, Peng Qin-jun, Cui Da-fu, Xu Zu-yan

机构信息

RCLPT, Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China.

出版信息

Appl Opt. 2012 Apr 1;51(10):C27-31. doi: 10.1364/AO.51.000C27.

DOI:10.1364/AO.51.000C27

PMID:22505107

Abstract

We demonstrated a high average power, narrow-linewidth, quasi-CW diode-pumped Nd:YAG 1064 nm laser with near-diffraction-limited beam quality. A symmetrical three-mirror ring cavity with unidirectional operation elements and an etalon was employed to realize the narrow-linewidth laser output. Two highly efficient laser modules and a 90° quartz rotator for birefringence compensation were used for the high output power. The maximum average output power of 62.5 W with the beam quality factor M(2) of 1.15 was achieved under a pump power of 216 W at a repetition rate of 500 Hz, corresponding to the optical-to-optical conversion efficiency of 28.9%. The linewidth of the laser at the maximum output power was measured to be less than 0.2 GHz.

摘要

我们展示了一种具有近衍射极限光束质量的高平均功率、窄线宽、准连续波二极管泵浦Nd:YAG 1064 nm激光器。采用具有单向工作元件和标准具的对称三镜环形腔来实现窄线宽激光输出。使用两个高效激光模块和一个用于双折射补偿的90°石英旋转器来实现高输出功率。在216 W泵浦功率、500 Hz重复频率下，实现了最大平均输出功率62.5 W，光束质量因子M(2)为1.15，对应的光光转换效率为28.9%。在最大输出功率下，测得激光器的线宽小于0.2 GHz。