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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 20 — Oct. 4, 2004
  • pp: 4864–4874

Planar corner-cut square microcavities: ray optics and FDTD analysis

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


Optics Express, Vol. 12, Issue 20, pp. 4864-4874 (2004)
http://dx.doi.org/10.1364/OPEX.12.004864


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Abstract

We analyze corner-cut square microcavities as alternative planar microcavities. Ray tracing shows open-ray orbits that are 90°-rotated can oscillate between each other upon reflections at the 45° corner-cut facets, and have the same sense of circulation. Our two-dimensional finite-difference time-domain simulations suggest that a waveguide-coupled corner-cut square microcavity with an optimum cut size supports traveling-wave resonances with desirable add-drop filter responses. The mode-field pattern evolutions confirm the concept of modal oscillations. By applying Fourier transform on the mode-field patterns, we analyze the modal composition in k-space. The add-drop filter responses can be optimized by fine-tuning the waveguide width.

© 2004 Optical Society of America

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

ToC Category:
Research Papers

History
Original Manuscript: August 26, 2004
Revised Manuscript: September 20, 2004
Published: October 4, 2004

Citation
Chung Yan Fong and Andrew Poon, "Planar corner-cut square microcavities: ray optics and FDTD analysis," Opt. Express 12, 4864-4874 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-20-4864


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