Masoud Mohammadi¹*, Mahmood Seifouri¹ and Saeed Olyaee²

¹Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
²Nano-photonics and Optoelectronics Research Laboratory (NORLab), Shahid Rajaee Teacher Training University, Tehran, Iran

*Corresponding Author: Masoud Mohammadi, Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.

Received: June 02, 2022; Published: June 24, 2022

Abstract

In this paper, the simulation of a nonlinear photonic crystal switch has been optimized in a new using the Kerr effect based on two-dimensional photonic crystal (2D-PC) structures. In this proposed structure, using a combination of waveguides and rings, we were able to manage the switching point of the structure using nonlinear effects in the rings. The proposed all-optic switch is composed of square lattice of silicon rods suspended in air. In this structure, the lattice constant a = 548 nm, and the filling factor r/a = 0.2. The value of input power at which the structure is switched ON is completely independent of the number of dielectric rods coupled to the L-shaped waveguide. The value of output power at the switching point decreases as completely descending function due to the increase in the number of coupling rods in the structure. In this proposed structure, the plane wave expansion (PWE) and fnite-diference time-domain (FDTD) methods are used respectively a solving for the band structure (dispersion relation) of specific photonic crystal geometries and to investigate the optical behavior of the structure. 

Keywords: Nonlinear; Kerr Effect; All Optical Switch; Photonic

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Citation

Citation: Masoud Mohammadi. “2D-FDTD Simulation of Nonlinear Photonic Crystal Switch with Applications in Integrated Circuits". Acta Scientific Applied Physics 2.7 (2022): 07-11.

Copyright

Copyright: © 2022 Masoud Mohammadi. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.