All-optical ultra-compact photonic crystal NOR gate based on nonlinear ring resonators

Abstract

We have proposed an ultra-compact all-optical photonic crystal 'NOR' gate, based on two Kerr nonlinear photonic crystal ring resonators. This logic gate can operate with a bit rate of about 138.9 Gbit s−1. We have employed an Si nanocrystal as the nonlinear material for its appropriate nonlinear properties. The operational principle and properties of our proposed gate has been described by finite difference time domain and plane wave expansion methods.