Abstract
This article focuses on an all optical 4 × 2 encoder using a two dimensional photonic crystals consisting of silicon dielectric rods in hexagonal lattice surrounded in air. The operation of this encoder is based on the threshold switching method, in which the optical Kerr effect and nonlinear ring resonators (NRRs) are used. Plane wave expansion (PWE) and finite difference time domain (FDTD) are applied to analyze the proposed all optical encoder in order to obtain the photonic band gap (PBG) and electric field distribution inside structure, respectively. Based on FDTD simulation, the suggested optical device is providing the contrast ratio of 16.98 dB, response time of 1.5 ps and the switching speed of 667 Gbit/s for operating at the optical wavelength of 1550 nm and it can be utilized for high performance optical processing systems.
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Askarian, A. Design and implementation of all optical 4 × 2 encoder based on 2D-PhC platform and optical Kerr effect. Opt Quant Electron 55, 822 (2023). https://doi.org/10.1007/s11082-023-04957-9
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DOI: https://doi.org/10.1007/s11082-023-04957-9