Numerical Analysis of Annular Photonic Crystal Based Reconfigurable and Multifunctional Nanoring Symmetrical Resonator for Optical Networks

Annular photonic crystal-based coupled nano ring resonator for the multifunctional platform with ultra-compact in size for high-performance optical network components. The proposed structure is reconfigurable and symmetrical, providing large bandwidth, high extinction ratio, and a very low loss comprising dual ring resonators and annular photonic crystal ring is made of Silica (Si) filled with Magnesium Fluoride (MgF
₂
) dielectric material. The photonic crystal resonator structure comprehends several high-performance optical network applications like optical filters, 1 × 2 and 1 × 3 power splitters, and reconfigurable switches. The miniature optical device parameters and their performances are optimized and analyzed by using Finite Difference Time Domain (FDTD) method. Annular photonic crystal-based ring resonators are coupled with the planar waveguide structure with a small footprint of 136.5 μm
²
with a high data rate of 7.81 Tbps. The proposed design is suitable for quantum computing, optical interconnects, and optical network devices.