83 W 659.5 nm全固态红光激光器

杨涛; 王建军; 姜东升; 赵鸿; 梁兴波; 赵书云; 苑利钢

中国激光, 2007, 34 (9): 1178, 网络出版: 2007-10-17

83 W 659.5 nm全固态红光激光器

All-Solid-State Red Laser with 83 W Output Power at 659.5 nm

论文大纲

杨涛 ^*王建军姜东升赵鸿梁兴波赵书云苑利钢

作者单位

华北光电研究所固体激光技术国家重点实验室, 北京 100015

摘要

报道了采用双抽运头串联的对称直通腔结构及KTP晶体腔内倍频实现高功率红光激光输出的实验结果。在激光二极管(LD)抽运功率为1250 W,声光Q开关工作重复频率为10 kHz条件下,获得平均功率为83 W,波长为659.5 nm的红光激光输出,光-光转换效率为6.7%,斜率效率为17%。激光器采用平-平腔结构,每个抽运头使用了一个连续运转的高功率激光二极管侧面抽运组件,组件内由35只20 W的激光二极管呈五边形阵列分布抽运一根Nd:YAG圆棒。采用镜片镀膜的方法使Nd:YAG工作在1319 nm波长,经腔内倍频得到单一波长659.5 nm红光输出,并对该激光器的基频及倍频输出特性进行了实验研究。

Abstract

The experimental results of high-power red laser constituted of a symmetrical linear resonator with two pumping modules, and intracavity frequency-doubling with a KTP crystal are reported. The average output power of 83 W at 659.5 nm was obtained in the condition of 1250 W pump power and the acoustic-optical Q-switching repetition rate of 10 kHz. The optical-optical efficiency was 6.5% and the optical slope efficiency was 17%. The laser adopted a plane-plane cavity structure. Every pumping head was equipped with a high power continuous wave (CW) side-pump module comprising of a Nd:YAG rod side-pumped by thirty-five 20 W laser diode arrays (LSAs) with pentagon geometry. To realize the oscillation of single wavelength of 1319 nm in Nd:YAG, the reflectivities of the resonator mirror are designed, which also leads to the single wavelength output of second-order harmonic (659.5 nm). The laser output characteristics of fundamental and frequency-doubled wavelengths have been studied.

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杨涛, 王建军, 姜东升, 赵鸿, 梁兴波, 赵书云, 苑利钢. 83 W 659.5 nm全固态红光激光器[J]. 中国激光, 2007, 34(9): 1178. 杨涛, 王建军, 姜东升, 赵鸿, 梁兴波, 赵书云, 苑利钢. All-Solid-State Red Laser with 83 W Output Power at 659.5 nm[J]. Chinese Journal of Lasers, 2007, 34(9): 1178.

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