High-Efficiency High-Power Nd：YAG Laser under 885 nm Laser Diode Pumping  

作　　者：李芳琴 张小富 宗楠 杨晶 彭钦军 崔大复 许祖彦 

机构地区：[1]Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 [2]RCLPT, Key Lab of Functional Crystal and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 [3]Graduate School of the Chinese Academy of Sciences, Beijing 100190

出　　处：《Chinese Physics Letters》2009年第11期92-94,共3页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant No 2004CB619006, and the National Natural Science Foundation of China under Grant No 50590404.

摘　　要：A high-efficiency high-power Nd：YAG laser under 885 nm laser diode （LD） pumping is demonstrated. The laser crystal is carefully designed, and the overlapping between the pump modes and the laser modes is optimized. The maximum output power at 1064 nm is 87W under the absorbed pump power 127.7 W, corresponding to a slope efficiency of 72.4% and an optical-optical efficiency of 68.1%. The optical-optical efficiency is 58.4% for the pump power emitted directly from the LD. To our best knowledge, this is the maximal optical-optical conversion efficiency obtained for the LD end-pumped Nd：YAG lasers so far.A high-efficiency high-power Nd：YAG laser under 885 nm laser diode （LD） pumping is demonstrated. The laser crystal is carefully designed, and the overlapping between the pump modes and the laser modes is optimized. The maximum output power at 1064 nm is 87W under the absorbed pump power 127.7 W, corresponding to a slope efficiency of 72.4% and an optical-optical efficiency of 68.1%. The optical-optical efficiency is 58.4% for the pump power emitted directly from the LD. To our best knowledge, this is the maximal optical-optical conversion efficiency obtained for the LD end-pumped Nd：YAG lasers so far.

关 键 词：OPTICS quantum optics and lasers 

分 类 号：TN248.13[电子电信—物理电子学] TN248.1