Gain equalization filter on the base of nonlinear Fabry-Perot interferometer for WDM systems

摘要

New type of gain equalization filter for WDM systems is proposed. It is based on the employment of nonlinear Fabry-Perot interferometer as a pump controlled mask in the layout of Fourier-synthesis of short optical pulses. Results of numerical simulation show that the flat gain spectrum of EDFA can be achieved over the whole C-band in the equalization scheme proposed at moderate pumping power and small additional losses.