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Appl Opt. 2009 Feb 1;48(4):804-9.

Three output port channel-drop filter based on photonic crystals.

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1
Department of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran. faraz.monifi@ee.kntu.ac.ir

Abstract

We present a photonic-crystal (PC) channel-drop filter (CDF) design based on 3x3 PC ring resonators. The normalized transmission spectra for single-ring and dual-ring configurations have been investigated using two-dimensional finite-difference time-domain (FDTD) technique in a square-lattice dielectric-rod PC structure. First, we investigate a single ring and we show that backward and forward dropping is possible in the third communication window. Then we add another ring and waveguide to develop a new CDF. This filter consists of an input and three outputs. Our FDTD simulation yields more than 85% efficiency over each output port.

PMID:
19183612
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