An EDFA$H_infty$Controller for Suppression of Power Excursions Due to Pilot Tones and Network Traffic

Conventional erbium-doped fiber amplifier (EDFA) control schemes lack a systematic design approach and do not consider the characteristics of input disturbances. We propose the application of H
_infin
control to suppress cross-gain modulation effects due to pilot tones and network burst-switched traffic. A detailed design of the EDFA H
_infin
controller is given, focused on input disturbance characteristics and desired performance measures. Simulation results under different types of disturbances show significant improvements in response time and power excursion reductions