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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 31, Iss. 3 — Mar. 1, 2014
  • pp: 518–523

Coupled-mode analysis of contra-directional coupling between two asymmetric photonic crystal waveguides

Vakhtang Jandieri, Kiyotoshi Yasumoto, and Jaromir Pistora  »View Author Affiliations

JOSA A, Vol. 31, Issue 3, pp. 518-523 (2014)

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A self-contained coupled-mode theory for the coupled two asymmetric photonic crystal waveguides (PCWs) is presented. The first-order coupled-mode equations are derived under a weak coupling assumption. The coupling coefficients are obtained systematically by a matrix calculus using the modal solutions of each PCW in isolation. The coupled-mode equations are solved for contra-directional coupling between two asymmetric PCWs formed by a hexagonal lattice of circular air holes in a dielectric medium. The power transmission spectra at different output ports of the coupled PCWs are investigated. It is shown that the self-contained coupled-mode analysis is useful to characterize a peculiar feature of the contra-directionally coupled PCWs as a drop filter.

© 2014 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.5296) Integrated optics : Photonic crystal waveguides
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Integrated Optics

Original Manuscript: November 25, 2013
Manuscript Accepted: December 21, 2013
Published: February 13, 2014

Vakhtang Jandieri, Kiyotoshi Yasumoto, and Jaromir Pistora, "Coupled-mode analysis of contra-directional coupling between two asymmetric photonic crystal waveguides," J. Opt. Soc. Am. A 31, 518-523 (2014)

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