title: Resonance assisted synchronization of coupled oscillators: frequency locking without phase locking.
abstract: Frequency locking without phase locking of two coupled nonlinear oscillators is experimentally demonstrated. This synchronization regime is found for two coupled laser modes, beyond the phase-locking range fixed by Adler's equation, because of a resonance mechanism. Specifically, we show that the amplitudes of the two modes exhibit strong fluctuations that produce average frequency synchronization, even if the instantaneous phases are unlocked. The experimental results are in good agreement with a theoretical model.
authors: Institut de Physique de Rennes, Université Rennes I-CNRS UMR 6251,Campus de Beaulieu, 35042 Rennes Cedex, France.
authors: J
authors: J
authors: Thévenin
authors: M
authors: M
authors: Romanelli
authors: M
authors: M
authors: Vallet
authors: M
authors: M
authors: Brunel
authors: T
authors: T
authors: Erneux
mesh_terms: D007834:Lasers; D017711:Nonlinear Dynamics; D055620:Optical Phenomena