Steady-periodic method for modeling mode instability in fiber amplifiers

被引：75

作者：

Smith, Arlee V. ^{[1
]}

Smith, Jesse J. ^{[1
]}

机构：

[1] AS Photon LLC, Albuquerque, NM 87112 USA

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 03期

关键词：

COMPUTATION; ORIGIN;

D O I：

10.1364/OE.21.002606

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a detailed description of the methods used in our model of mode instability in high-power, rare earth-doped, large-mode-area fiber amplifiers. Our model assumes steady-periodic behavior, so it is appropriate to operation after turn on transients have dissipated. It can be adapted to transient cases as well. We describe our algorithm, which includes propagation of the signal field by fast-Fourier transforms, steady-state solutions of the laser gain equations, and two methods of solving the time-dependent heat equation: alternating-direction-implicit integration, and the Green's function method for steady-periodic heating. (C) 2013 Optical Society of America

引用

页码：2606 / 2623

页数：18

共 14 条

[1]

Agrawal G P., 2012, Nonlinear Fiber Optics

[2] Steady-periodic Green's functions and thermal-measurement applications in rectangular coordinates [J].