METHOD OF UP-CONVERSION OF ALL-OPTICAL SIGNAL THROUGH CROSS-GAIN MODULATION IN SEMICONDUCTOR OPTICAL AMPLIFIER AND APPARATUS THEREOF

摘要

Disclosed herein is a method of up-conversion of all-optical signal through cross-gain modulation in a semiconductor optical amplifier and an apparatus thereof. The method according to the present invention comprises: a first step which generates an IF data signal used in a semiconductor optical amplifier's frequency modulation bandwidth, and incidents the IF data signal in the semiconductor optical amplifier; a second step which generates an LO signal having frequency higher than the semiconductor optical amplifier's frequency modulation bandwidth, and incidents the LO signal in the semiconductor optical amplifier; and a third step which performs cross-gain modulation (XGM) with the IF data signal and the LO signal.