Design and Simulate AND Logic Gate Based on Two-dimensional Photonic Crystal

In this paper, the AND all-optical logic gates using of two-dimensional photonic crystals have been designed and simulated. In the proposed all-optical AND gate, photonic crystals are placed in a square lattice with dielectric rods in the air substrate, which are designed with "H" semi-shaped defects in order to achieve the requirements of high-speed networks. Also, the performance of the all-optical AND logic gate was analyzed using the finite difference time domain method. The plane wave expansion method was used to obtain the gap band structure. The results show that the AND logical gate proposed to work at 1550 nm optical wavelength with high contrast ratio and minimum delay time used in optical devices and potential applications in optical sensors and optical integrated circuits.