Simulation analysis for backward-reflected laser in high power laser amplifier

被引：0
|
作者：
Li L. [1 ,2 ]
Lu X. [1 ]
Cao H. [1 ]
Li Z. [2 ]
Xu R. [2 ]
Yang J. [2 ]
机构：
[1] Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
[2] Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 02期
关键词：
Backward-reflected laser; Energy fluence; High power laser amplifier; Simulation analysis;
D O I：
10.3788/HPLPB20102202.0261
中图分类号：
学科分类号：
摘要：
Based on the Frantz-Nodvik physical model, the energy fluence of backward-reflected laser in a high power laser amplifier has been investigated by solving the rate equations in consideration of relaxation between lower and upper laser states. The laser chain is composed of Nd-doped phosphate glass amplifiers that can provide 2. 50 kJ with the pulse duration of 1.0 ns. Due to the considerable difference of remaining gain in laser amplifiers, the energy fluence is significantly different. Compared with that utilizing one amplifier with the diameter of 70 mm, the laser chain including two may take a bigger risk of being destroyed.
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页码：261 / 264
页数：3
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