Filamentation analysis in large-mode-area fiber lasers

被引：4
|
作者：
Sun, Lei [1 ]
Marciante, John R.
机构：
[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA
[2] Univ Rochester, Laser Energet Lab, Rochester, NY 14627 USA
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2007年 / 24卷 / 09期
关键词：
D O I：
10.1364/JOSAB.24.002321
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Starting from the paraxial wave equation, an analytic expression for filament threshold in fiber lasers is derived. The occurrence of filamentation is determined by the larger of two thresholds, one of perturbative gain and one of spatial confinement. The threshold value is approximately a few megawatts, depending on the parameters of the fiber. (c) 2007 Optical Society of America.
引用
收藏
页码：2321 / 2326
页数：6
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