二极管泵浦Yb:YAG准三能级1024nm薄盘激光器

摘要

For the first time,we present a quasi-three-level Yb:YAG laser operating in continuous wave(CW) mode. It is based on the 2F5/2 -2F7/2 transition and outputs 1024 nm wavelength. The use of a pump module with 16 light passes through the crystal allows the realization of a folded cavity Yb:YAG thin-disk laser with 370 mW output power at 1024 nm when the pump power is 32. 2 W. Moreover,intra-cavity second-harmonic generation( SHG) has also been a-chieved with a power of 45 mW at 512 nm by using a LiB3O5 (LBO) nonlinear crystal. The power stability in 30 minutes is better than ±4. 3% .%采用二极管泵浦Yb∶ YAG晶体实现准三能级连续1024 nm薄盘激光器,1024 nm谱线是由Yb∶YAG晶体内的2F5/2-2F7/2能级跃迁实现的,实验中采用折叠腔结构.泵浦光16次通过Yb∶ YAG晶体,当注入泵浦功率为17.9 W时,1024 nm激光输出功率为370 mW,通过采用Ⅰ类临界位相匹配LiB3O5 (LBO)晶体进行腔内二次谐波倍频,获得最大输出功率为45 mW的512 nm蓝-绿激光稳定输出,蓝-绿色激光30 min功率稳定度优于4.3％.