All-optical logic gates based on nonlinear fiber loop interferometer with semiconductor laser amplifier

摘要

Abstract: New all-optical high-bit-rate logic gates are proposed. They are based on the nonlinear propagation of bit pulses in a fiber loop interferometer with an integral asymmetrically located semiconductor laser amplifier. In view of cross-phase modulation effect the bit error rate as a function of input signals on-off ratio is calculated. Some estimations for a semiconductor laser amplifier are considered. !18