Dynamical behavior of a Brillouin fiber ring laser emitting two Stokes components

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Abstract
The dynamics of a Brillouin fiber ring laser operating on the two first Stokes components is studied both theoretically and experimentally. The emergence of the second order Stokes wave is described within the framework of a coherent five-wave model that generalizes the usual three-wave model. The laser steady states are analytically characterized and the dynamics is numerically studied. The laser emission is stable except at high pumping rates for which the system exhibits periodic and quasiperiodic instabilities. Experimental results are in good agreement with the theoretical predictions.