Open AccessAnalysis of combined effect of pump-intensity noise and reflection in counter-pumped Raman amplifiers
Author(s) -
Chul Han Kim
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.006099
Subject(s) - optics , raman amplification , materials science , relative intensity noise , optical amplifier , raman spectroscopy , amplifier , raman scattering , noise (video) , optoelectronics , physics , laser , semiconductor laser theory , computer science , cmos , artificial intelligence , image (mathematics)
We have analyzed the combined effect of pump-intensity noise and reflections on the performance of counter-pumped Raman amplified systems. The required level of pump-intensity noise was evaluated for negligible enhancement of multi-path interference (MPI). We have also investigated the enhancement of pump-to-signal crosstalk caused by the reflections occurring within transmission fiber. We found that a high reflection (larger than -20 dB) within effective length of fiber could increase the effect of pump-to-signal crosstalk even for the counter-pumped Raman amplifiers.