Open AccessDynamics of stimulated Brillouin scattering in optical fibers without external feedback induced by frequency detuning from resonance
Author(s) -
Hongliang Lü,
Pu Zhang,
Xiaolin Wang,
Zongfu Jiang
Publication year - 2015
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.23.018117
Subject(s) - brillouin scattering , brillouin zone , resonance (particle physics) , physics , optics , oscillation (cell signaling) , four wave mixing , scattering , coupling (piping) , light scattering , relaxation (psychology) , phase conjugation , mixing (physics) , nonlinear optics , optical fiber , laser , atomic physics , materials science , quantum mechanics , chemistry , psychology , social psychology , biochemistry , metallurgy
In optical fibers, stimulated Brillouin scattering are usually investigated in the regime of resonance. Whereas, in this paper, we discover for the first time that, without participation of Kerr effect, frequency detuning from resonance can give rise to rich dynamical behaviors for stimulated Brillouin scattering in optical fibers. Distinct from the dynamics presented in the conventional Brillouin lasers, this kind of phenomena does not need external feedback at all but also presents a variety of classifiable dynamical features for continuous-wave pumping, including steady state, periodic state and chaos. We analyze that the main mechanisms responsible for these dynamical behaviors include the transient response of acoustic wave, relaxation oscillation, frequency mixing effect induced by three-wave coherent coupling and Brillouin gain-induced group velocity change. Moreover, it should be pointed that it is the first time to discover in theory that there exists the frequency mixing effect induced by three-wave coherent coupling in the regime of non-resonance for the stimulated Brillouin scattering process, which as a consequence determines the periodic state.