Analysis of all-optical demultiplexing characteristics using four-wave mixing among picosecond pulses in semiconductor optical amplifiers

摘要

We have numerically analyzed all-optical demultiplexing characteristics based on four-wave mixing (FWM) in semiconductor optical amplifiers (SOAs) by the finite-difference beam propagation method. We have obtained an optimum input pump pulsewidth of 1 ～ 3 ps for 1 ps, 250 Gbit/s input probe pulses. We have also analyzed all-optical demultiplexing characteristics for multichannel probe signals. When 4-channel, 2 ps, 125 Gbit/s probe pulses and 2 ps pump pulses with different frequencies are inputted to an SOA, the 31.25 Gbit/s signals having four different frequencies are generated as DEMUX signals.