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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 4 — Feb. 15, 2010
  • pp: 583–585

Excitation mapping of whispering gallery modes in silica microcavities

G. Lin, B. Qian, F. Oručević, Y. Candela, J.-B. Jager, Z. Cai, V. Lefèvre-Seguin, and J. Hare  »View Author Affiliations

Optics Letters, Vol. 35, Issue 4, pp. 583-585 (2010)

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We report the direct observation of the electromagnetic-field distribution of whispering gallery modes in silica microcavities (spheres and toroids). It is revealed by their excitation efficiency with a tapered fiber coupler swept along the meridian. The originality of this method lies in the use of the coupler itself for the near-field mapping, eliminating the need of additional tools used in previous work. This method is successfully applied to microspheres and microtoroids.

© 2010 Optical Society of America

OCIS Codes
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(140.3945) Lasers and laser optics : Microcavities
(180.4243) Microscopy : Near-field microscopy
(130.3990) Integrated optics : Micro-optical devices

ToC Category:
Lasers and Laser Optics

Original Manuscript: November 6, 2009
Revised Manuscript: January 11, 2010
Manuscript Accepted: January 12, 2010
Published: February 11, 2010

G. Lin, B. Qian, F. Oručević, Y. Candela, J.-B. Jager, Z. Cai, V. Lefèvre-Seguin, and J. Hare, "Excitation mapping of whispering gallery modes in silica microcavities," Opt. Lett. 35, 583-585 (2010)

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