高功率Yb:YAG陶瓷板条激光放大器的理论设计与实验研究  

Theoretical Design and Experimental Research on High Power Yb:YAG Ceramic Slab Laser Amplifier

作　　者：李密[1,2,3] 周唐建 徐浏[1,2] 高清松[1,2] 章健[4] 邬映臣[1,2] 汪丹[1,2] 胡浩[1,2] 唐淳[1,2] 于益[1,2] 吴振海[1,2] 李建民[1,2] 石勇[1,2] 赵娜[1,2] Li Mi;Zhou Tangjian;Xu Liu;Gao Qingsong;Zhang Jian;Wu Yingcheng;Wang Dan;Hu Hao;Tang Chun;Yu Yi;Wu Zhenhai;Li Jianmin;Shi Yong;Zhao Na(Institute of Applied Electronics, China Academy of EngineeringPhysics, Mianyang, Sichuan 621999, China;Key Laboratory of Science and Technology on High Energy Laser, China Academy of Engineering Physics, Mianyang, Sichuan 621999, China;Graduate School of China Academy of Engineering Physics, Beijing 100088, China;Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621999 [2]中国工程物理研究院高能激光科学与技术重点实验室,四川绵阳621999 [3]中国工程物理研究院研究生院,北京100088 [4]中国科学院上海硅酸盐研究所,上海200050

出　　处：《光学学报》2018年第1期190-195,共6页Acta Optica Sinica

摘　　要：理论设计和制作了Yb:YAG陶瓷板条,通过铟砷化镓(InGaAs)二极管抽运、1030nm种子激光注入以及双程放大,在室温下实现了高功率的1030nm激光输出。种子激光注入功率为1.18kW和总抽运功率为19.98kW时,获得了5.97kW的放大激光功率,光-光转换效率约为24.0%,斜率效率为27.9%。测量了Yb:YAG陶瓷板条的透射波前,模拟了不同耦合效率和温度时的输出功率。实验结果表明,室温下Yb:YAG在高亮度抽运和高亮度种子光注入时可以实现高功率的激光输出。A Yb：YAG ceramic slab is designed theoretically and fabricated,and the high power laser output is achieved at 1030 nm under room-temperature with InGaAs diode pumping,1030 nm seed laser injecting and doublepass amplifying.The amplified laser power is 5.97 kW when the total pumping power is 19.98 kW and the injected power of the seed laser is 1.18 kW.The optical-to-optical conversion efficiency is 24.0% and the slope efficiency is27.9%.The transmission wavefront of the Yb：YAG ceramic slab is measured and the output powers with different coupling efficiencies and working temperatures are simulated.The experimental results show that the high power laser output can be achieved in Yb：YAG under room-temperature with high intensity pumping and high intensity seed laser injecting.

关 键 词：激光器 YB:YAG 自吸收 陶瓷板条 激光放大器 

分 类 号：TN248.1[电子电信—物理电子学]