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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 26 — Dec. 27, 2004
  • pp: 6468–6480

Numerical study of light propagation via whispering gallery modes in microcylinder coupled resonator optical waveguides

Shaozhong Deng, Wei Cai, and Vasily N. Astratov  »View Author Affiliations


Optics Express, Vol. 12, Issue 26, pp. 6468-6480 (2004)
http://dx.doi.org/10.1364/OPEX.12.006468


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Abstract

By using a discontinuous spectral element method, we analyze evanescent wave coupling of whispering gallery modes (WGMs) in microcylinder coupled resonator optical waveguides (CROWs). We demonstrate successful light propagation by WGMs through a chain of coupled cylinder resonators, and that the speed of such propagation is strongly dependent on the inter-resonator gap sizes. Our simulations also show that light propagates slower by WGMs with bigger azimuthal numbers than by those with smaller azimuthal numbers. On the other hand, the light propagation by WGMs of the same azimuthal number appears to have the same speed in CROWs regardless of the size and the material of the resonators, indicating that the tail (the part of a WGM outside the resonator) determines inter-resonator coupling strength.

© 2004 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(230.5750) Optical devices : Resonators
(230.7370) Optical devices : Waveguides

ToC Category:
Research Papers

History
Original Manuscript: November 30, 2004
Revised Manuscript: December 10, 2004
Published: December 27, 2004

Citation
Shaozhong Deng, Wei Cai, and Vasily Astratov, "Numerical study of light propagation via whispering gallery modes in microcylinder coupled resonator optical waveguides," Opt. Express 12, 6468-6480 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-26-6468


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