Stimulated Brillouin scattering in single-mode fibers above threshold: spectral and statistical properties

We performed numerical simulations in order to obtain statistical and spectral characteristics of stimulated Brillouin scattering (SBS) initiated from Gaussian noise in singlemode optical fibers. Recently published experimental spectra of SBS power are completely explained by on one dimensional SBS model. We give a clear physical insight into the problem and, for the first time, reveal how the probability function of Stokes power and the SBS spectra evolve as key parameters of the model vary, leading to a modification of Stokes field statistics