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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 22 — Nov. 3, 2003
  • pp: 2897–2904

Mode field patterns and preferential mode coupling in planar waveguide-coupled square microcavities

Chung Yan Fong and Andrew W. Poon  »View Author Affiliations

Optics Express, Vol. 11, Issue 22, pp. 2897-2904 (2003)

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We report a numerical and analytical study of mode field patterns and mode coupling in planar waveguide-coupled square microcavities, using two-dimensional (2-D) finite-difference time-domain (FDTD) method and k-space representation. Simulated mode field patterns can be identified by k-space modes. We observe that different mode number parities permit distinctly different mode field patterns and spectral characteristics. Simulation results suggest that k-space modes that nearly match the waveguide propagation mode have a relatively high coupling efficiency. Such preferential mode coupling can be modified by the mode number parity.

© 2003 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(260.5740) Physical optics : Resonance

ToC Category:
Research Papers

Original Manuscript: September 9, 2003
Revised Manuscript: October 21, 2003
Published: November 3, 2003

Chung Yan Fong and Andrew Poon, "Mode field patterns and preferential mode coupling in planar waveguide-coupled square microcavities," Opt. Express 11, 2897-2904 (2003)

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