中国激光, 2009, 36 (7): 1700, 网络出版: 2009-07-16
高功率激光二极管抽运的镱钠共掺氟化钙连续激光器
High-Power Laser Diode-Pumped Yb,NaCaF2 Continuous-Wave Laser
激光器 激光二极管抽运 NaCaF2晶体 连续激光 高功率 lasers laser diode-pump Yb Yb NaCaF2 crystal continuous wave-laser high power
摘要
掺镱氟化钙(Yb3+CaF2)激光器是最近国际上研究的热点之一, 2008年报道的该类激光器, 在64 W激光二极管(LD)的抽运下, 实现了平均输出功率10.2 W的连续激光输出。利用国产镱钠共掺的氟化钙(Yb,NaCaF2)激光晶体, 采用三镜折叠腔型和激光二极管抽运, 获得了该类激光器(Yb,NaCaF2 /YbCaF2)的高功率连续输出。实验参数为：输出耦合镜的透过率为4%, 激光二极管的最大输出功率为40 W, 中心波长为976 nm。当吸收抽运功率18.2 W时, 获得了14.5 W的最高功率连续激光输出, 相应的斜率效率为80%。结果表明, 国产Yb,NaCaF2晶体具有低激光阈值和高负载能力, 是一种优良的高功率激光材料。
Abstract
Yb3+CaF2 laser has been intensively explored in recent years. In Yb3+CaF2 continuous-wave (CW) laser, the highest output power of 10.2 W pumped by a laser diode(LD) of 64 W has been reported in 2008. The first demonstration of the highest output power of 14.5 W in a LD-pumped Yb, NaCaF2 CW laser is presented, under the conditions of an absorbed pump power of 18.2 W and a output coupler of 4%, which corresponds to a laser slope efficiency of 80%. The result shows that the novel Yb, NaCaF2 crystal is an excellent laser material for low-threshold and high-power lasers.
柴路, 葛文琦, 闫杰, 胡明列, 王清月, 苏良碧, 李红军, 郑丽和, 徐军. 高功率激光二极管抽运的镱钠共掺氟化钙连续激光器[J]. 中国激光, 2009, 36(7): 1700. Chai Lu, Ge Wenqi, Yan Jie, Hu Minglie, Wang Qingyue, Su Liangbi, Li Hongjun, Zheng Lihe, Xu Jun. High-Power Laser Diode-Pumped Yb,NaCaF2 Continuous-Wave Laser[J]. Chinese Journal of Lasers, 2009, 36(7): 1700.
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