Design and Simulation of a New Structure of Integrated All-Optical AND Logic Gate by Using Linear PC Nano-Resonator

This manuscript presents a simple nano-resonator for using in an all-optical AND logic gate based on the photonic crystals. This nano-resonator is formed by changing the size of a dielectric rod in the photonic crystal structure. In this structure, the mechanism of interference effect is used which requires less power. The results reveal that the contrast ratio is 6 dB. The output optical power at logical level “one” is enough to be able to set up the next gate. In addition to simplicity, the use of nano-resonator also increases the speed of logic gate performance. Due to the features considered for the all-optical AND logic gate, it can be used in optical integrated circuits and optical communication systems.