Pump pulse characteristics of quasi-continuous-wave diode-side-pumped Nd:YAG laser  

作　　者：Zexin Song Qi Bian Yu Shen Keling Gong Nan Zong Qingshuang Zong Yong Bo Qinjun Peng 宋泽鑫;卞奇;申玉;龚柯菱;宗楠;宗庆霜;薄勇;彭钦军(Key Laboratory of Solid State Laser,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory of Function Crystal and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100190,China;Southwest Institute of Technical Physics,Chengdu 610041,China)

机构地区：[1]Key Laboratory of Solid State Laser,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [2]Key Laboratory of Function Crystal and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [3]University of Chinese Academy of Sciences,Beijing 100190,China [4]Southwest Institute of Technical Physics,Chengdu 610041,China

出　　处：《Chinese Physics B》2022年第5期355-359,共5页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2016YFB0402103);the Knowledge Innovation Program of the Chinese Academy of Sciences(Grant No.GJJSTD20180004);the Fund of Technical Institute of Physics and Chemistry,Chinese Academy of Sciences(Grant No.Y8A9021H11)。

摘　　要：The influence of pumping laser pulse on the property of quasi-continuous-wave(QCW)diode-side-pumped Nd:YAG laser is investigated theoretically and experimentally.Under remaining a fixed duty cycle,the average output power increases,and the corresponding thermal focal length shorten with the increase of the pump pulse duration,which attributes to the decrease of the ratio of pulse buildup time to the pulse duration.At a pump power of 146 W,the laser output power changes from 65.1 W to 81.2 W when the pulse duration is adjusted from 150μs to 1000μs,confirming a significant enhancement of 24.7%.A laser rate equation model incorporating the amplified spontaneous emission is also utilized and numerically solved,and the simulated results agree well with the experimental data.

关 键 词：pump pulse duration DIODE-SIDE-PUMPED pulsed Nd:YAG laser laser rate equation amplified spontaneous emission 

分 类 号：TN248[电子电信—物理电子学]