1064 nm Nd…YAG激光抽运二氧化碳气体中的受激拉曼散射

Stimulated Raman Scattering in Carbon Dioxide Gas Pumped by Nd…YAG Laser at 1064 nm

利用强激光作用在高压二氧化碳气体中产生受激拉曼散射作为激光波长转换的机理,获得了1248nm激光输出。结果表明:采用波长为1064nm的抽运光,通过优化二氧化碳压力及透镜聚焦参数,得到了一级斯托克斯光(S_1,1248nm)的最大转换效率为36.6%,最大单脉冲能量为82mJ。

We use the 1064 nm laser as pumping light to obtain the 1248 nm laser via wavelength conversion based on stimulated Raman scattering in high pressure CO2 gas. By optimizing the pressure of CO2 and focal length of lens, we obtain the maximum conversion efficiency of 36.6% and the maximum pulse energy of 82 mJ for the first order Stokes light （S1, 1248 nm）.