Coupling and decoupling of electromagnetic waves in parallel 2D photonic crystal waveguides

Author

Boscolo, Stefano ; Midrio, Michele ; Someda, Carlo G.

Author_Institution

Dipt. di Ingegneria Elettrica, Udine Univ., Italy

Volume

38

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

47

Lastpage

53

Abstract

The behavior of two nearby straight photonic crystal waveguides is analyzed. It is shown that the two guides, considered as a single system, may realize a very efficient wavelength selective directional coupler, that may be used as a channel interleaver in a WDM communications system. In addition, we also show that, by properly designing the geometry of the dielectric region between the guide cores, waveguide decoupling can be obtained. Necessary conditions for this feature to be obtained are analytically derived, and an electromagnetic explanation of the decoupling process is given

Keywords

optical communication equipment; optical design techniques; optical directional couplers; optical waveguide theory; photonic band gap; telecommunication channels; wavelength division multiplexing; WDM communications system; channel interleaver; decoupling process; dielectric region; electromagnetic explanation; electromagnetic wave coupling; electromagnetic wave decoupling; geometry; guide cores; nearby straight photonic crystal waveguides; parallel 2D photonic crystal waveguides; single system; waveguide decoupling; wavelength selective directional coupler; Dielectrics; Directional couplers; Electromagnetic coupling; Electromagnetic scattering; Electromagnetic waveguides; Optical communication equipment; Optical devices; Optical waveguides; Photonic crystals; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.973318

Filename

973318