High-Performance Eight-Channel Photonic Crystal Ring Resonator–Based Optical Demultiplexer for DWDM Applications

Abstract

In this paper, a photonic crystal ring resonator (PCRR)-based optical demultiplexer is reported for Dense Wavelength Division Multiplexing (DWDM) applications. Diamond and silicon-dioxide are designed and simulated by an eight-channel PCRR. An average uniform spacing of 0.8 nm and 1.94 nm is obtained for the proposed demultiplexer, with silicon-dioxide and diamond, respectively. For the eight-channel PCRR structure, silicon-dioxide results in a maximum transmission efficiency of 91.48%. The quality factor is measured as 1613.336. Because of its light guiding mechanism, the ring resonator is found to be the most suitable and convenient for having dense wavelength division multiplexing amongst the different optical devices available based on photonic crystals. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.