A Novel Four-Channel Optical De-multiplexer Using Photonic Crystal Ring Resonator

Optical devices based on photonic crystal superiorly concentrated by various investigators turns to be crucial need in various integrated applications. This research proposes a four channel wavelength division de-multiplexer (WDM) based on photonic crystal ring resonators (PhCRR) that are appropriate for various applications. This work uses 4-resonant rings with varied geometrical factors to complete the de-multiplexing task. The de-multiplexer includes two photonic band gap regions, and was designed using a square lattice 2D-photonic crystal structure of dielectric rods. The band gap covers the wavelengths for optical communication. The optimal channel spacing for this de-multiplexer and the transmission efficiency is superior to 95%. The efficiency is substantially higher than other approaches. Based on its major role, various design mechanisms and metrics are analyzed and reported. Moreover, the structural design of the anticipated model captures the attention of various investigators owing to its higher quality factor, design flexibility and low loss which fulfills the major applications requirements. Numerical analysis and simulations are done using Photonics CAD software. Here, the main concept is investigating the drawback of the existing approach and resolve in the proposed model. The comparison is helpful in modeling the structure with better performance.