Open AccessExperimental and numerical study on stimulated Brillouin scattering in a graded-index multimode fiber
Author(s) -
Aldo Minardo,
Romeo Bernini,
Luigi Zeni
Publication year - 2014
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.22.017480
Subject(s) - brillouin scattering , optics , multi mode optical fiber , materials science , double clad fiber , optical fiber , numerical analysis , scattering , computer simulation , refractive index , fiber , brillouin zone , physics , plastic optical fiber , mechanics , mathematics , mathematical analysis , composite material
Numerical and experimental results on stimulated Brillouin scattering (SBS) in a graded-index multimode silica fiber are reported. The Brillouin Gain Spectrum (BGS) is shown to strongly depend on the pump and probe modal content. By use of a numerical model, the BGS at varying launching conditions of both pump and probe beams is computed. Numerical results show that intramodal and intermodal SBS contribute to the overall BGS. Experiments confirm the numerical predictions.