Pulse-width reduction in a diode-pumped doubly Q-switched YVO4/Nd:YVO4 laser with electro-optic modulator and GaAs saturable absorber

被引：15

作者：

Li, Tao ^{[1
]}

Zhao, Shengzhi ^{[1
]}

Zhuo, Zhuang ^{[1
]}

Yang, Kejian ^{[1
]}

Li, Guiqiu ^{[1
]}

Li, Dechun ^{[1
]}

机构：

[1] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Shandong, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2009年 / 26卷 / 05期

基金：

美国国家科学基金会;

关键词：

TRANSIENT ENERGY-TRANSFER; ND-YVO4; LASER; FIBER LASER; YAG LASER; SYMMETRY; CR4+-YAG; SHAPE; AO; ND;

D O I：

10.1364/JOSAB.26.001146

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By using both a beta-BaB2O4 (BBO) electro-optic (EO) modulator and a GaAs saturable absorber, a laser-diode (LD) end-pumped doubly Q-switched YVO4/Nd:YVO4 laser is realized. A symmetric factor is defined to describe the temporal symmetry of output pulses. At 20 W incident pump power, a symmetric factor of 1.04 is obtained by the doubly Q-switched laser with 2.5 ns pulse width and 300 kW peak power. The experimental results show that the double Q-switching can generate a symmetric and shorter pulse with higher peak power in comparison with the single EO Q-switching. In order to explain these results, a rate equation model has been developed, and it leads to good agreement with the experimental data. (C) 2009 Optical Society of America

引用

页码：1146 / 1150

页数：5

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