Implementation of Optical Logic Gates (Ex-OR AND and NOR) Using SOA-MZI Structure

Abstract

Within this work, all optical logic gates are demonstrated, these all gates are simulated on the basis of different types of nonlinearities in a single semiconductor optical amplifier and a detuning optical band pass filter, all-optical logic gates using simultaneous Four-wave mixing (FWM) and Cross gain modulation (XGM) and Cross phase modulation (XPM) .This scheme can be easily reconfigured to implement ultrafast AND, NOR, NOT, and XNOR gates operating at 10Gbit/s.Semiconductor optical amplifiers (SOAs) are very striking nonlinear instrument for the realization of different optical logic functions, since they can provide a strong change of the refractive index together with high gain. In this paper operation, simulation step and experimental result of different optical logic gates (Ex-OR Gate, AND Gate, NOR Gate) are well presented. These gates are based on the nonlinearities on SOAs. The experimental results are exactly matched with standard results.