激光二极管端面泵浦1062nm Nd:GAGG激光器的连续波和被动调Q激光性能

Continuous-wave and passively Q-switched laser performance of LD-end-pumped 1062 nm Nd:GAGG laser.

作者信息

Zhi Yuchun, Dong Chunming, Zhang Jian, Jia Zhitai, Zhang Baitao, Zhang Yongzhuan, Wang Shanpeng, He Jingliang, Tao Xutang

机构信息

State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China.

出版信息

Opt Express. 2010 Apr 12;18(8):7584-9. doi: 10.1364/OE.18.007584.

DOI:10.1364/OE.18.007584

PMID:20588596

Abstract

Continuous-wave (CW) and passively Q-switched operations of LD-end-pumped Nd:Gd(3)Al(x)Ga(5-x)O(12) (Nd:GAGG) laser at 1062 nm were reported. The highest CW output power of 5.7 W was obtained, corresponding to an optical conversion efficiency and slope efficiency of 51.0% and 54.5%, respectively. The CW output efficiency of Nd:GAGG laser is comparable and even better than that of Nd:GGG. The passively Q-switched output was realized for the first time to our knowledge. In addition, a maximum output power of 1.12 W, a maximum pulse repetition rate of 39 kHz and a minimum pulse width of 6 ns were obtained by using Cr(4+):YAG as the saturable absorber.

摘要

报道了激光二极管端面泵浦的Nd:Gd₃AlₓGa₅₋ₓO₁₂（Nd:GAGG）激光器在1062 nm处的连续波（CW）和被动调Q运转。获得了最高5.7 W的连续波输出功率，对应的光转换效率和斜率效率分别为51.0%和54.5%。Nd:GAGG激光器的连续波输出效率与Nd:GGG相当，甚至更好。据我们所知，首次实现了被动调Q输出。此外，使用Cr⁴⁺:YAG作为可饱和吸收体，获得了1.12 W的最大输出功率、39 kHz的最大脉冲重复频率和6 ns的最小脉冲宽度。