Observation of stimulated brillouin scattering growth along optical fiber using two-photon absorption process in a silicon avalanche photodiode

Abstract

We investigated a simple method to observe the growth of stimulated Brillouin scattering along an optical fiber using two-photon absorption (TPA) process in a silicon avalanche photodiode. The principle is based on the fact that the TPA photocurrent is proportional to the intensity correlation between reference light and Stokes light.