中国激光, 2011, 38 (3): 0302007, 网络出版: 2011-02-21
紧凑高效的Nd:YVO4/PPMgLN腔内倍频3.8 W连续绿光激光器
Compact and Highly Efficient 3.8 W Intracavity Frequency-Doubled Nd:YVO4/PPMgLN Green Laser
激光器 绿光激光器 腔内倍频 周期极化 掺镁铌酸锂晶体 lasers green laser intracavity frequency-doubled periodically poled MgO:LiNbO3 crystal
摘要
研究了一种基于周期极化掺镁铌酸锂(PPMgLN)晶体做倍频器件的新型、紧凑和高功率连续绿光激光器。利用外加电场极化法成功制备了厚度为1 mm,短周期为6.95 μm,占空比接近50%,大面积均匀的PPMgLN;在6.8 W单管激光二极管(LD)抽运的情况下,利用通光长度仅1 mm的PPMgLN,腔内倍频获得了3.8 W的绿光532 nm激光输出,光光转换效率高达56%。
Abstract
A compact and highly efficient green-light source is demonstrated based on periodically poled Mg:LiNbO3 (PPMgLN) crystal. The MgO:LiNbO3 samples of 1 mm thick, 6.95 μm domain period, uniform periodicity, near 50% duty cycle are fabricated by use of a high-voltage multi-pulse poling method. A maximum power of 3.8 W at 532 nm is obtained by a 6.8 W laser diode (LD) pumped, the PPMgLN length in Nd:YVO4 intracvity is only 1 mm, and the corresponding optical to optical conversion efficiency is 56%.
颜博霞, 毕勇, 王栋栋, 鲍光, 亓岩, 房涛, 张瑛. 紧凑高效的Nd:YVO4/PPMgLN腔内倍频3.8 W连续绿光激光器[J]. 中国激光, 2011, 38(3): 0302007. Yan Boxia, Bi Yong, Wang Dongdong, Bao Guang, Qi Yan, Fang Tao, Zhang Ying. Compact and Highly Efficient 3.8 W Intracavity Frequency-Doubled Nd:YVO4/PPMgLN Green Laser[J]. Chinese Journal of Lasers, 2011, 38(3): 0302007.