Patent ID: 7006282
Filing Date: 2006-02-28
Classification: H04B

Abstract:
1. An optical amplifier, comprising: a gain medium; an input monitor, operable to measure a power of an ingress optical signal and generate an input power signal based on the power; an output monitor, operable to measure a power of an egress optical signal and generate an output power signal based on the power; an automatic gain controller including a feedforward module and a feedback module; the feedforward module operable to receive the input power signal generated by the input monitor and to generate a first control signal based on the input power signal; the feedback module operable to receive the input and output power signals generated by the input and output monitors and to generate a second control signal based on the input and output power signals; and the automatic gain controller operable to control pump energy provided to the gain medium based on the first and second control signals.