Doubly passively Q-switched intracavity-frequency-doubling Nd3+:YAG/KTP green laser with GaAs and Cr4+:YAG saturable absorbers

被引：5
|
作者：
An, Jing [1 ]
Zhao, Shengzhi [1 ]
Li, Guiqiu [1 ]
Yang, Kejian [1 ]
Sun, Yuming [1 ]
Li, Dechun [1 ]
Wang, Jing [1 ]
Li, Ming [1 ]
机构：
[1] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China
来源：
OPTICAL ENGINEERING | 2006年 / 45卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Cr4+: YAG saturable absorber; GaAs saturable absorber; double passive Q-switch; KTP intracavity-frequency-doubling; Nd3+: YAG crystal;
D O I：
10.1117/1.2404903
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By using both GaAs and Cr4+:YAG saturable absorbers simultaneously in the same cavity, a xenon-flash-lamp-pumped doubly passively Q-switched intracavity-frequency-doubling Nd3+:YAG/KTP green laser is realized. This laser can generate a more symmetric shape and shorter pulse width compared to the solely passively Q-switched intracavity-frequency-doubling green laser with Cr4+:YAG or GaAs saturable absorber. A symmetric factor is defined to describe the temporal symmetry of the pulses quantitatively. The coupled rate equations under the plane-wave approximation are used to simulate the Q-switched process of the laser, and the numerical solutions agree well with the experimental results. (c) 2006 Society of Photo-Optical Instrumentation Engineers.
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页数：6
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