Design and analysis of 1 × 6 power splitter based on the ring resonator

Abstract

In this paper, the design and performance of two-dimensional (2D) photonic crystal (PhC) T-shaped 1 × 6 power splitter based on the ring resonator on square lattice are presented. The coupling characteristic between the waveguide and the ring resonator is analyzed theoretically by the coupled mode theory (CMT). The simulation result of the splitting properties of the T-shaped splitter is obtained numerically by the finite difference time domain (FDTD) method. The uniform splitting can be achieved on the both sides of input waveguide due to the symmetry of the structure. The photonic band gap (PBG) is calculated by the plane wave expansion (PWE) method. The number of rods is 27 × 42 in x–z plane. The device is ultracompact with the overall size around 322 μm2. The photonic crystal power splitter based on the ring resonator is designed for photonic integrated circuits application.