Polarization Properties Analysis for Fiber Brillouin Amplifier

Abstract

In recent years, many researchers have focused on fiber Brillouin amplifier(FBA) for the higher amplify gain than traditional optical amplifiers, such as Erbium-doped fiber amplifier (EDFA). But the efficiency depends deeply on the relative state of polarization (SOP) of pump and probe signal. In this paper, The SOP of pump and probe signal are considered when trying to get the analytical solutions for the steady-state fiber Brillouin amplification in a long single mode optical fiber. The analytical solutions' validity has been proved by comparing with the numerical results. In the experiment, we screen out different amplified probe power through changing the relative SOP of the pump and probe signal.