High beam-quality Q-switched repetitive mini laser

被引：0

作者：

Yi H. ^{[1
]}

Ye Y. ^{[1
]}

Zhou Z. ^{[1
]}

Huang S. ^{[1
]}

Huang Z. ^{[1
]}

Tian X. ^{[1
]}

Wang W. ^{[1
]}

Li J. ^{[1
]}

Zhang K. ^{[1
]}

机构：

[1] Institute of Applied Electronic, China Academy of Engineering Physics, Mianyang

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 09期

关键词：

Beam quality; Lasers; Resonator; Variable reflectivity mirror; YAG laser;

D O I：

10.3788/CJL20103709.2318

中图分类号：

学科分类号：

摘要：

A Q-switched repetitive mini laser is developed by requirement of high beam-quality. The interrelations between the parameters of variable reflectivity mirror (VRM) and con-focal unstable resonator and their effects on laser intensity distributions are analyzed. A suit of resonator parameters is obtained to meet high beam-quality of outputting. In order to develop a mini adjust-free laser, a folded resonator is designed, where a cube corner prism is used as the folded mirror. Because linearly polarized light exists in the resonator, the laser can be run with an electro-optic Q-switch in a special polarization azimuth. Based on these theory analyses, an amount of experiments have been done. Using a xenon flash lamp with 32.4 J as the pump energy, single pulse laser output of high beam-quality and high dynamic to static ratio light spot is obtained, and its repetitive frequency is 1~10 Hz. When the laser works at the repetitive frequency of 3 Hz, an energy of 320.2 mJ, pulse width of 8.3 ns output beam is achieved, and its efficiency of the Q-switch is 95.5%, while the electro-optical efficiency is 0.99%.

引用

页码：2318 / 2322

页数：4

共 15 条

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