Open AccessDerivation of Raman treshold formulas for CW double-clad fiber amplifiers
Author(s) -
César Jáuregui,
Jens Limpert,
Andreas Tünnermann
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.008476
Subject(s) - raman spectroscopy , raman scattering , optics , amplifier , materials science , fiber , physics , optoelectronics , cmos , composite material
We show that the classic Raman threshold formula is unsuitable to accurately predict the onset of Raman scattering in high-power CW double-clad fiber amplifiers. Consequently new analytical formulas for the Raman threshold are obtained and their accuracy is tested. Using these new formulas, the dependence of the Raman threshold on various parameters is studied.