Design and Simulation 4-Channel Demultiplexer Based on Photonic Crystals Ring Resonators

Abstract

In this paper, a new design of demultiplexer based on two-dimensional photonic crystal ring<br />resonator is proposed. The structure is made of a hexagonal lattice of silicon rods with the<br />refractive index 3.46 in coefficient of air with refractive index 1. The transmission efficiency<br />and Quality factor for our proposed demultiplexer, respectively, are more than 65% and<br />1600. The normalized transmission spectra of the photonic crystal ring resonator are taken<br />using Two-dimensional (2D) Finite Difference Time Domain (FDTD) method. The photonic<br />band gap is calculated by Plane Wave Expansion (PWE) method.