用Cr∶YAG被动调Q的Yb∶YAG激光  

Passively-Q-switched Yb∶YAG Laser with Cr∶YAG as a Saturable Absorber

作　　者：董俊[1] 邓佩珍[1] 张影华[1] 刘玉璞[1] 徐军[1] 陈伟[1] 谢兴龙[1] 

机构地区：[1]中国科学院上海光机所,上海201800

出　　处：《中国激光》2001年第7期577-579,共3页Chinese Journal of Lasers

基　　金：国家自然科学基金 (编号 :699880 6);;863 416资助项目

摘　　要：用连续钛宝石激光器作抽运源 ,在室温下用Cr4 +∶YAG作可饱和吸收体实现了Yb∶YAG晶体的被动调Q激光输出。实验中获得了在 1 0 3μm平均功率为 5 5mW和脉宽 (FWHM )为 0 35 μs的被动调 Q激光。Cr∶YAG的初始透过率对Yb∶YAG被动调 Q 激光的脉宽 (FWHM )和重复率有一定影响。实验表明Yb∶YAG晶体是一种有前景的结构紧凑、高效和全固化的被动调Q激光晶体。Using cw Ti∶sapphire laser as pumping source, the passively Q switched Yb∶YAG laser with Cr 4+ ∶YAG as a saturable absorber has been demonstrated at room temperature. An average output power as much as 55 mW at 1 03 μm with a pulse width (FWHM) as short as 0.35 μs was abtained. The initial transmission of Cr∶YAG has influence on the pulse duration (FWHM) and the repetition rate of Yb∶YAG passively Q switched laser. The experiment shows that Yb∶YAG crystal will be a most promising passively Q switched laser crystal for compact, efficient solid state lasers.

关 键 词：Cr:YAG晶体 被动调Q激光 Yb:YAG激光 

分 类 号：TN248.13[电子电信—物理电子学]