Stochastic modulational instability in the nonlinear Schrödinger equation with colored random dispersion
Stochastic modulational instability in the nonlinear Schrödinger equation with colored random dispersion
We study modulational instability (MI) in optical fibers with random group-velocity dispersion (GVD). We consider Gaussian and dichotomous colored stochastic processes. We resort to different analytical methods (namely, the cumulant expansion and the functional approach) and assess their reliability in estimating the MI gain of stochastic origin. If the power …