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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 9 — May. 1, 2006
  • pp: 1241–1243

Ultrawide tuning of photonic microcavities via evanescent field perturbation

Peter T. Rakich, Miloš A. Popović, Michael R. Watts, Tymon Barwicz, Henry I. Smith, and Erich P. Ippen  »View Author Affiliations


Optics Letters, Vol. 31, Issue 9, pp. 1241-1243 (2006)
http://dx.doi.org/10.1364/OL.31.001241


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Abstract

Evanescent field perturbation of an integrated microring resonator is examined as a means of achieving high-fidelity reversible tuning of photonic microcavities over large wavelength ranges. A 1.7% wavelength tuning is achieved through the use of a novel silica fiber probe that provides access to the evanescent field of an air-clad high-index-contrast ring resonator. As the microring is perturbed, the probe–ring distance is found through simultaneous nanometric distance calibration and force measurements. Experimental results agree well with theoretical tuning. Possible microelectromechanical systems implementation of this effect is discussed, as well as avenues for improvement of the tuning range.

© 2006 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.5750) Optical devices : Resonators
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

History
Original Manuscript: December 15, 2005
Manuscript Accepted: January 4, 2006

Citation
Peter T. Rakich, Milos A. Popovic, Michael R. Watts, Tymon Barwicz, Henry I. Smith, and Erich P. Ippen, "Ultrawide tuning of photonic microcavities via evanescent field perturbation," Opt. Lett. 31, 1241-1243 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-9-1241

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