title: Brillouin gain analysis for fibers with different refractive indices.
abstract: We studied an anomalous result in the measured stimulated Brillouin scattering threshold for single-mode optical fibers with different refractive index profiles and effective areas. It was found that, in addition to the optical effective area, the refractive-index-dependent interaction between the optical and the acoustic fields must be considered in order to account for the differences in the stimulated Brillouin scattering threshold between fiber types. A detailed analytical formalism describing the acousto-optic interaction was derived to accommodate the influence of the index profile design on Brillouin scattering.
authors.affiliation: Corning Incorporated, Science and Technology, Corning, New York 14831, USA.
authors.forename: A Boh
authors.initials: AB
authors.lastname: Ruffin
authors.forename: Ming-Jun
authors.initials: MJ
authors.lastname: Li
authors.forename: Xin
authors.initials: X
authors.lastname: Chen
authors.forename: Andrey
authors.initials: A
authors.lastname: Kobyakov
authors.forename: Frank
authors.initials: F
authors.lastname: Annunziata