REALIZATION METHOD OF ALL-OPTICAL alpha ?? ?? LOGICAL DEVICE

摘要

A method of realizing an all-optical AND logical device using a semiconductor optical amplifier is provided to use gain saturation characteristics of the amplifier in order to implement the device. One semiconductor optical amplifier(SOA2) of two semiconductor optical amplifiers(SOA1,SOA2) receives a clock signal(CLOCK) of a constant time period as the first irradiation signal along with the first pump signal(B) and generates a gain-modulated output value. The other semiconductor optical amplifier(SOA1) thereof receives the second irradiation signal(A) along with the gain-modulated output value as the second pump signal and outputs an AND signal(AB).