Journal
OPTIK
Volume 126, Issue 20, Pages 2368-2372Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2015.05.140
Keywords
Reversible gate; Encoder; Photonic crystal
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In this paper, we designed a reversible all-optical 4 x 2 encoder using a two-dimensional square lattice rods in air photonic crystal with nonlinear refractive index. Our main structure composed of seven vertical waveguide and two elliptical rings. Plane Wave Expansion (PWE) and Finite Difference Time Domain (FDTD) methods are used to calculate band structure and wave propagation in the structure, respectively. Reversible encoder is designed within small size and has ability to be integrated in optical integrated circuits. This reversible encoder is the first optical encoder based on photonic crystals. The results show that our structure could act as an optical reversible encoder. (C) 2015 Elsevier GmbH. All rights reserved.
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