Mechanisms of wave mixing and polarisation sensitivity of the wavelength conversion in semiconductor optical amplifiers using two parallel polarised pumps

摘要

We report on an experimental and theoretical study of wavelength conversion based on four wave mixing (FWM) in a bulk semiconductor optical amplifier (SOA), using two parallel polarised pumps. The mechanisms responsible for the generation of the frequency converted products of the input signal are discussed. It is shown that the polarisation sensitivity of this scheme depends strongly on the position of the signal Wavelenth relative to the pump wavelengths.