Open AccessEffect of Ramam gain on the characteristic of soliton propagation
Author(s) -
Qiao Hai-Long,
Weijuan Jia,
Baolin Liu,
Xudong Wang,
Neimule Menke,
Yang Jun,
Junping Zhang
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.104212
Subject(s) - soliton , physics , pulse (music) , nonlinear system , nonlinear schrödinger equation , raman spectroscopy , operator (biology) , dissipative soliton , optical fiber , optics , quantum electrodynamics , quantum mechanics , biochemistry , chemistry , repressor , detector , transcription factor , gene
Using the nonlinear Schrödinger equation (NLSE) including Raman gain effect but ignoring fiber loss situation, the linear operator and nonlinear operator specific expression are obtained based on MATLAB fractional Fourier numerical algorithm. They are applied to the NLSE including Raman gain, and the evolutions of soliton pulse are simulated in optical fiber through changing parameters. The result shows that soliton propagation stability is destroyed compared with the case considering no Raman gain, leading to the rapid attenuation of optical soliton. The influence degree depends on input soliton pulse peak power. The effects of Raman gain on ground state soliton and high order soliton are not the same.