摘要
介绍了基于Yb:YAG薄片的16通泵浦耦合系统的设计方法,建立了泵浦系统的模型,对模型进行了模拟。以16通泵浦耦合系统为基础,通过微通道冷却,利用国产单片直径10 mm、厚度为250μm、掺杂原子分数为10%的Yb:YAG薄片进行了实验研究。在泵浦功率为69.5 W时,采用曲率半径为-800 mm的输出镜,获得了27 W的1 030 nm连续激光输出,光光转换效率为38.8%;采用曲率半径为-2 000 mm的输出镜,获得了18.65 W的1 030 nm连续激光输出,光束质量平分因子小于等于1.1,光光转换效率为26.8%。
The design of a 16-pass pump system for Yb：YAG thin-disk laser has been presented.The model of the system was built and simulated.Experiments based on the system using one disk cooled with water through micro-channel were done.The disk was homemade,with the diameter of 10 mm,thickness of 250 μm and doping atom fraction of 10%.For the pump power of 69.5 W,when a reflector with the radius of curvature of-800 mm is used,24.4 W 1 030 nm continuous output is achieved,with optical-to-optical conversion efficiency of 38.8%;when a reflector with the radius of curvature of-2 000 mm is used,18.65 W 1 030 nm continuous output is achieved,with the beam quality factor no more than 1.1 and optical-to-optical conversion efficiency of 26.8%.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2011年第5期1229-1232,共4页
High Power Laser and Particle Beams
基金
国家自然科学基金重大项目(60890201)
