Demultiplexer using directly resonant tunneling between point defects and waveguides in a photonic crystal

We propose a frequency selective demultiplexer that is realized by the directly resonant tunneling between waveguides and point defects in a two-dimensional photonic crystal. The multiple scattering method is used to simulate the behavior of the demultiplexer. Results show that the demultiplexing ef...

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Bibliographic Details
Published inJournal of applied physics Vol. 91; no. 7; pp. 4771 - 4773
Main Authors Jin, Chongjun, Han, Shouzhen, Meng, Xiaodong, Cheng, Bingying, Zhang, Daozhong
Format Journal Article
LanguageEnglish
Published 01.04.2002
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Summary:We propose a frequency selective demultiplexer that is realized by the directly resonant tunneling between waveguides and point defects in a two-dimensional photonic crystal. The multiple scattering method is used to simulate the behavior of the demultiplexer. Results show that the demultiplexing efficiency is very high when the point defects are symmetrically arranged at both sides of the central line of the inlet waveguide. The selective frequency is only determined by the defect mode of the corresponding point defect in the photonic crystal and is not affected by the other point defects. A microwave experiment results agree well with the simulation. This structure may be valuable for the design of all-optical integrated circuits.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1456956