Steady-periodic method for modeling mode instability in fiber amplifiers
Optics
2013-01-30 v2
Abstract
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.
Keywords
Cite
@article{arxiv.1301.1296,
title = {Steady-periodic method for modeling mode instability in fiber amplifiers},
author = {Arlee V. Smith and Jesse J. Smith},
journal= {arXiv preprint arXiv:1301.1296},
year = {2013}
}
Comments
19 pages, 2 figures