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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 2 — Jan. 22, 2007
  • pp: 646–651

Universal coupling between metal-clad waveguides and optical ring resonators

Ian M. White, Jonathan D. Suter, Hesam Oveys, Xudong Fan, Terry L. Smith, Junying Zhang, Barry J. Koch, and Michael A. Haase  »View Author Affiliations

Optics Express, Vol. 15, Issue 2, pp. 646-651 (2007)

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We demonstrate excitation of whispering gallery modes in optical ring resonators using a gold-clad pedestal planar waveguide structure. The gold-clad structure provides a strong evanescent field for light-coupling into the resonator while enabling low transmission loss throughout much of the visible and near-infrared region. This is advantageous compared to the previously demonstrated anti-resonant reflecting optical waveguide (ARROW) structure, which can only transmit a narrow wavelength band. We show that the height of the pedestal waveguide can be designed to optimize the coupling conditions for the ring resonator. This technology enhances the practicality of optical ring resonators for sensing devices, laser systems, and many other important applications.

© 2007 Optical Society of America

OCIS Codes
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(230.5750) Optical devices : Resonators
(230.7380) Optical devices : Waveguides, channeled
(290.4020) Scattering : Mie theory
(300.6320) Spectroscopy : Spectroscopy, high-resolution

ToC Category:
Optical Devices

Original Manuscript: December 15, 2006
Revised Manuscript: January 11, 2007
Manuscript Accepted: January 13, 2007
Published: January 22, 2007

Virtual Issues
Vol. 2, Iss. 2 Virtual Journal for Biomedical Optics

Ian M. White, Jonanthan D. Suter, Hesam Oveys, Xudong Fan, Terry L. Smith, Junying Zhang, Barry J. Koch, and Michael A. Haase, "Universal coupling between metal-clad waveguides and optical ring resonators," Opt. Express 15, 646-651 (2007)

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