摘要
对室温下零声子线(抽运波长为969 nm)抽运Yb…YAG激光器进行了理论研究,建立了969 nm抽运Yb…YAG的速率方程。在相同热负载状态下,通过数值模拟分别得到969 nm和941 nm抽运时Yb…YAG板条放大器的光-光转换效率和输出激光强度。模拟结果表明:941 nm和969 nm抽运的光-光转换效率基本相同;抽运波长为969 nm的抽运强度比941 nm提高了20%以上。
The theoretical research on the Yb…YAG laser pumped by the zero-phonon line with pumping wavelength of 969 nm is constructed, and the rate equations for this 969 nm pumped Yb…YAG laser are established. The optical-to-optical efficiency and the output laser intensity of this Yb…YAG slab laser amplifier pumped at 969 nm or 941 nm are obtained by numerical simulation under the same thermal load state. The simulation results show that the optical-to-optical efficiencies for both are almost equivalent. The pumping intensity for 969 nm pumping is 20% higher than that for 941 nm pumping.
作者
李密
尚建力
周唐建
汪丹
徐浏
邬映臣
唐淳
Li Mi;Shang Jianli;Zhou Tangjian;Wang Dan;Xu Liu;Wu Yingcheng;Tang Chun(Institute of Applied Electronics,China Academy of Engineering Physics,Mianyang,Sichuan621999,China;Key Laboratory of Science and Technology on High Energy Laser,China Academy of Engineering Physics,Mianyang,Sichuan621999,China;Graduate School of China Academy of Engineering Physics,Beijing 100088,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2019年第2期253-258,共6页
Acta Optica Sinica
关键词
激光器
Yb…YAG
零声子线抽运
吸收截面
受激发射截面
光-光转换效率
lasers
Yb…YAG
zero-phonon line pumping
absorption cross section
stimulated emission cross section
optical-to-optical efficiency
