中国激光, 2017, 44 (7): 0701004, 网络出版: 2017-07-05   

高功率Yb∶YAG薄片激光器连续和腔倒空实验研究

High Power Continuous-Wave and Cavity-Dumped Yb∶YAG Thin Disk Lasers
作者单位
1 哈尔滨工业大学可调谐激光技术国家重点实验室, 黑龙江 哈尔滨 150080
2 哈尔滨工业大学理学院, 黑龙江 哈尔滨 150001
摘要
研究了高功率Yb∶YAG薄片激光器连续及腔倒空调Q输出性能。基于平面波理论, 建立Yb∶YAG准三能级激光连续运转模型, 对薄片激光器的晶体掺杂和抽运结构进行优化。通过优化实验方案, 研究半导体激光器抽运Yb∶YAG薄片激光器连续输出性能, 在抽运功率为199 W时, 获得功率为100 W的1030 nm激光输出, 光-光转换效率为50.2%, 斜率效率为56.8%。利用RTP电光调Q开光, 搭建Yb∶YAG电光腔倒空激光器, 研究1030 nm脉冲输出性能, 获得了脉冲宽度为20.2 ns的高重复频率1030 nm脉冲激光, 脉冲重复频率为10~100 kHz, 当重复频率为10 kHz时, 1030 nm激光的最大峰值功率达到109.8 kW。
Abstract
Research on high power continuous-wave and cavity dumped Yb∶YAG thin disk lasers is conducted. Based on the plane-wave quasi-three-level laser model, the parameters of Yb∶YAG thin disk laser are optimized. The maximum output power in laser diode pumped Yb∶YAG thin disk laser at 1030 nm reaches 100 W with an optical-to-optical efficiency of 50.2% and a slope efficiency of 56.8%. By using RTP electro-optical Q-switched, the cavity-dumped Yb∶YAG thin disk laser at 1030 nm is constructed. A constant pulse duration of 20.2 ns is achieved within the repetition rate from 10 kHz to 100 kHz. The maximum output peak power at 1030 nm achieves 109.8 kW with a repetition rate of 10 kHz.
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闫仁鹏, 于欣, 李旭东, 周劼, 于俊华, 周忠祥. 高功率Yb∶YAG薄片激光器连续和腔倒空实验研究[J]. 中国激光, 2017, 44(7): 0701004. Yan Renpeng, Yu Xin, Li Xudong, Zhou Jie, Yu Junhua, Zhou Zhongxiang. High Power Continuous-Wave and Cavity-Dumped Yb∶YAG Thin Disk Lasers[J]. Chinese Journal of Lasers, 2017, 44(7): 0701004.

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