Wavelength Demultiplexing Structure Based on Coupled-Cavity Waveguides in Photonic Crystals
نویسندگان
چکیده
A structure based on photonic crystals for optical wavelength demultiplexing is proposed and analyzed. This structure consists of two coupled-cavity waveguides, each one tuned at a different frequency transmission band. A model based on the tightbinding method taken from solid-state physics is used to design the working frequencies of the waveguides. The demultiplexing behavior is demonstrated by means of simulations employing a finite-difference time-domain method. It is concluded that the demultiplexing mechanism presented here may be used as a building block in multifunctional lightwave integrated circuits based on photonic crystals.
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