Eur. Phys. J. D 20, 121-127 (2002)
https://doi.org/10.1140/epjd/e2002-00108-1

Coupled longitudinal and transverse stimulated Brillouin scattering in single-mode optical fibers

CNRS, Laboratoire de Physique de la Matière Condensée, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex, France

Corresponding author: ^a eric.picholle@unice.fr

Received: 17 September 2001
Revised: 5 March 2002
Published online: 28 June 2002

Abstract

Due to their finite numerical aperture, both longitudinal and transverse stimulated Brillouin scattering can occur in single-mode fibers. We discuss the role of the fiber structure and propose a coherent model accounting for both effects. We show experimentally and numerically that, in some cases, the perturbative cladding Brillouin scattering (CBS) can severely affect the dynamics of SBS Brillouin fiber lasers. New dynamical regimes of long-fiber Brillouin ring lasers are presented, including stable trains of modulated pulses.