强激光与粒子束2006，Vol.18Issue(4)：553-558,6.
Yb3+:YAG片状激光器的温度效应及金刚石窗口冷却设计
Temperature effect of Yb3+:YAG slab laser and diamond window cooling design
曹丁象 1於海武 2郑万国 2贺少勃 2王小峰2
作者信息
- 1. 国防科学技术大学,光电科学与工程学院,长沙,410073
- 2. 中国工程物理研究院,激光聚变研究中心,四川,绵阳,621900
- 折叠
摘要
Abstract
The temperature-related laser performances of the Yb3+:YAG slab laser have been investigated based on quasi-three level rate equation model, which include the energy storage and extraction efficiency. The results show that the extractable energy storage efficiency decreases significantly from 43% to 26% with the increase of the temperature in the lasing slab from 300 to 400 K. We also have demonstrated the feasibility of double-face cooling of lasing slab with a diamond window whose thermal conductivity is so high that a very thin plate suffices to efficiently remove the heat generated in the lasing slab. Simulation results show that with a pump intensity of 15 kW/cm2 and repetition rate of 10 Hz, to keep the maximum temperature of the lasing slab below a reasonable value, e.g., less than 320 K, the heat exchange coefficient of water should not be less than 2 000 W/(m2·K). The results also show that under the same cooling condition reducing the thickness of the lasing slab and simultaneously increasing the number of pump passes can effectively reduce the temperature of lasing slab.关键词
准三能级固体激光/高功率/温度效应/冷却/金刚石窗口/激光二极管抽运Key words
Quasi-three level solid state laser/High power/Temperature dependence/Heat extraction/Diamond window/Diode-pumped分类
信息技术与安全科学引用本文复制引用
曹丁象,於海武,郑万国,贺少勃,王小峰..Yb3+:YAG片状激光器的温度效应及金刚石窗口冷却设计[J].强激光与粒子束,2006,18(4):553-558,6.
