Design of a 2 × 1 multiplexer with a ring resonator based on 2D photonic crystals

Abstract

Multiplexers are widely used logic circuits that connect a number of inputs to an output. These circuits are used to create logic functions. This article designs and simulates a 2 × 1 multiplexer based on 2D photonic crystals. The structure of this multiplexer includes dielectric rods in an air background. At the input, there is a ring resonator between two waveguides. This multiplexer’s structure is relatively small, with 14 × 15 rods. The operating wavelength of this logic circuit is 1.55 μm, which falls within the photonic band gap. The PWE method was used to simulate the band structure, and the FDTD numerical calculation method was used to calculate time.

Topics & Concepts