All-optical feedforward automatic gain control scheme for pump power shared erbium-doped fiber amplifiers

Abstract

A novel all-optical feedforward automatic gain control scheme for pump power shared erbium-doped fiber amplifiers has been proposed. Dynamic gain excursion characteristics of the amplifier using the scheme have been experimentally clarified. The maximum absolute value of the gain excursion has been significantly reduced from 7.3 dB without control to 0.47 dB with the control scheme.