Title :
A dispersion compensator using coupled defects in a photonic crystal
Author :
Hosomi, Kazuhiko ; Katsuyama, Toshio
Author_Institution :
Adv. Res. Lab., Hitachi Ltd., Tokyo, Japan
fDate :
7/1/2002 12:00:00 AM
Abstract :
We propose a new type of dispersion compensator that uses the characteristics of light traveling in a coupled defect waveguide (CDW) in a photonic crystal. By using a theoretical computation based on the plane-wave method, we show that the CDW band appears within the bandgap and its characteristics are well reproduced by the tight-binding (TB) model. We calculate the wavelength dispersion of light propagating in the CDW using TB formalism. The calculated result shows an inherently large dispersion of the CDW, which enables the realization of an extremely small dispersion compensator of a few tens of millimeters in size
Keywords :
compensation; crystal defects; micro-optics; optical communication equipment; optical fibre dispersion; optical waveguide theory; optical waveguides; photonic band gap; tight-binding calculations; TB formalism; bandgap; coupled defect waveguide; coupled defects; dispersion compensator; inherently large dispersion; micro optics; photonic crystal; plane-wave method; small dispersion compensator; tight-binding model; wavelength dispersion; Degradation; Electromagnetic waveguides; Optical coupling; Optical fiber communication; Optical fiber dispersion; Optical propagation; Optical waveguides; Periodic structures; Photonic band gap; Photonic crystals;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2002.1017593
