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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 17 — Sep. 1, 2014
  • pp: 5173–5176

Tailoring of the free spectral range and geometrical cavity dispersion of a microsphere by a coating layer

Davor Ristić, Maurizio Mazzola, Andrea Chiappini, Alphonse Rasoloniaina, Patrice Féron, Roberta Ramponi, Giancarlo C. Righini, Gilles Cibiel, Mile Ivanda, and Maurizio Ferrari  »View Author Affiliations


Optics Letters, Vol. 39, Issue 17, pp. 5173-5176 (2014)
http://dx.doi.org/10.1364/OL.39.005173


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Abstract

The modal dispersion of a whispering gallery mode (WGM) resonator is a very important parameter for use in all nonlinear optics applications. In order to tailor the WGM modal dispersion of a microsphere, we have coated a silica microsphere with a high-refractive-index coating in order to study its effect on the WGM modal dispersion. We used Er3+ ions as a probe for a modal dispersion assessment. We found that, by varying the coating thickness, the geometrical cavity dispersion can be used to shift overall modal dispersion in a very wide range in both the normal and anomalous dispersion regime.

© 2014 Optical Society of America

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 25, 2014
Revised Manuscript: July 25, 2014
Manuscript Accepted: July 28, 2014
Published: August 27, 2014

Citation
Davor Ristić, Maurizio Mazzola, Andrea Chiappini, Alphonse Rasoloniaina, Patrice Féron, Roberta Ramponi, Giancarlo C. Righini, Gilles Cibiel, Mile Ivanda, and Maurizio Ferrari, "Tailoring of the free spectral range and geometrical cavity dispersion of a microsphere by a coating layer," Opt. Lett. 39, 5173-5176 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-17-5173

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