红外与激光工程, 2019, 48 (4): 0405006, 网络出版: 2019-07-23
109.5 W输出1.94 μm波长Tm:YAP固体激光器
109.5 W output 1.94 micron Tm:YAP solid-state laser
摘要
报道了一种高功率Tm:YAP激光器实验装置, 采用b轴切割的YAP/Tm:YAP/YAP复合晶体作为激光增益介质, 使用中心波长为795 nm的LD模块进行双端泵浦, 当增益介质冷却温度为20 ℃, LD总泵浦功率为301.4 W时, 获得了最高109.5 W的1.94 μm波长线偏振激光输出, 光-光转换效率约为36.3%, 斜率效率约为45.8%, 在此输出功率条件下测得光束质量M2因子为3.8。
Abstract
A high power Tm:YAP laser device was reported. The laser gain medium was b-axis-cut YAP/Tm:YAP/YAP composite crystal rod. By using a LD module with a center wavelength of 795 nm for double-end pumping, when the temperature of the cooling water was set at 20 ℃, and the total pump power was 301.4 W, the linear polarized laser output of 1.94 μm with a maximum of 109.5 W was obtained. The optical-to-optical conversion efficiency was up to 36.3% and the slope efficiency was about 45.8%, the measured beam quality of M2 factor was 3.8 at the highest output power condition.
苑利钢, 周寿桓, 赵鸿, 陈国, 魏磊, 李宝, 王克强. 109.5 W输出1.94 μm波长Tm:YAP固体激光器[J]. 红外与激光工程, 2019, 48(4): 0405006. Yuan Ligang, Zhou Shouhuan, Zhao Hong, Chen Guo, Wei Lei, Li Bao, Wang Keqiang. 109.5 W output 1.94 micron Tm:YAP solid-state laser[J]. Infrared and Laser Engineering, 2019, 48(4): 0405006.
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