Design and Analysis of All-Optical Logic Gates Based on a Germanium Dielectric Material Micro Ring Resonator Using Photonics Crystal Technology

Abstract

In this paper, plan and examination of optical NOT and OR logic gates based on 2-Dimensional (2D) Photonic Crystals (PhC) design is proposed. The proposed structure is shaped with the combination of line abandons and rectangular ring resonator structure. The execution of the structure is analyzed utilizing 2D Finite Difference Time Domain (FDTD) strategy. The band gap examination is gotten utilizing Plane Wave Expansion (PWE) strategy. The structure has the lattice constant and refractive index as 580 nm and 4.0, respectively. The response time is about 0.306 ps and the dimension of the proposed structure is about 10.6 × 11.6μm2 which is highly compact and integrable. The wide band range is achieved between 1272.0 nm and 1987.4 nm with center wavelength at 1550 nm. All-optical logic gates satisfy their truth tables with reasonable power contrast ratio between logic ‘1’ and logic ‘0’.