High Power Q-Switched TEM00 Nd:YVO4 Laser with Self-Adaptive Compensation of Thermal Lensing Effect

被引：20
作者：
Chen, H. [1 ]
Liu, Q. [1 ]
Yan, X. [1 ]
Gong, M. [1 ]
机构：
[1] Tsinghua Univ, Dept Precis Instruments, Ctr Photon & Elect, State Key Lab Tribol, Beijing 100084, Peoples R China
来源：
LASER PHYSICS | 2010年 / 20卷 / 07期
基金：
中国国家自然科学基金;
关键词：
SOLID-STATE LASERS; REPETITION-RATE; ND-YVO4; LASER; SLAB LASER; COMPOSITE CRYSTAL; STABLE RESONATOR; END; MODE; ND;
D O I：
10.1134/S1054660X10130025
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A high power dual-end-pumped Nd:YVO4 laser with adaptive compensation of thermal lensing effect by adjusting HR mirror along the optical axis was proposed. In Q-switching operation at 70 kHz, the laser worked at different pump power (from 90 W to 70 W) with stable beam quality (M-2 similar to 1.15) and high output power (from 39 to 28.4 W), corresponding to the absorbed-output conversion efficiency of 55%. In the meantime, the pulse duration was increased from 24 to 31.7 ns. At various repetition rate from 60 to 100 kHz, the beam quality factors were all measured less than 1.2.
引用
收藏
页码：1594 / 1597
页数：4
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