Passive Q-switching of short-length Tm3+-doped silica fiber lasers by polycrystalline Cr2+:ZnSe microchips

被引:24
作者
Tang, Yulong [1 ]
Yang, Yong [1 ]
Xu, Jianqiu [1 ]
Hang, Yin [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
基金
美国国家科学基金会;
关键词
Fiber lasers; Diode-pumped lasers; Q-switching;
D O I
10.1016/j.optcom.2008.07.069
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrate passive Q-switching of short-length double-clad Tm3+-doped silica fiber lasers near 2 mu m pumped by a laser diode array (LDA) at 790 nm. Polycrystalline Cr2+:ZnSe microchips with thickness from 0.3 to 1 mm are adopted as the Q-switching elements. Pulse duration of 120 ns, pulse energy over 14 mu] and repetition rate of 53 kHz are obtained from a 5-cm long fiber laser. As high as 530 kHz repetition rate is achieved from a 50-cm long fiber laser at similar to 10-W pump power. The performance of the Q-switched fiber lasers as a function of fiber length is also analyzed. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:5588 / 5591
页数:4
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