High-Pulse-Stability Double-End Continuous-Grown YVO4/Nd:YVO4/YVO4 Acousto-Optically Q-Switched Laser at High Repetition Rates

被引：6
|
作者：
Wang, Y. [1 ,2 ]
Gong, M. [1 ]
Huang, L. [1 ]
机构：
[1] Tsinghua Univ, Dept Precis Instruments, State Key Lab Tribol, Ctr Photon & Elect, Beijing 100084, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R China
来源：
LASER PHYSICS | 2010年 / 20卷 / 06期
关键词：
COMPOSITE CRYSTAL LASER; SEMICONDUCTOR SATURABLE ABSORBER; GREEN LASER;
D O I：
10.1134/S1054660X10110253
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
High pulse amplitude stability of 0.62% (rms) is achieved at 60 kHz repetition rate in fundamental mode with double-end continuous-grown YVO4/Nd:YVO4/YVO4 composite crystal. The average output power and pulse peak power are 32.9 W and 27.7 kW, respectively, with 19.8 ns pulse width and 548 mu J pulse energy. The pulse amplitude stability is investigated experimentally. The stability gets improved with the decrease of repetition rate and output transmission. From theoretical analysis, the reason of pulse instability at high repetition rates is that the initial population inversion doesn't saturate and the final population inversion doesn't approach zero. With the decrease of repetition rate and output transmission, the final population inversion decreases and the interaction between two adjacent pulse periods is weakened. Therefore, pulse stability improves.
引用
收藏
页码：1316 / 1319
页数：4
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