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Excitation mapping of whispering gallery modes in silica microcavities

journal contribution
posted on 2023-06-07, 23:53 authored by G Lin, B Qian, Fedja OrucevicFedja Orucevic, Y Candela, J-B Jager, Z Cai, V Lefèvre-Seguin, J Hare
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.

History

Publication status

  • Published

Journal

Optics Letters

Issue

4

Volume

35

Page range

583-585

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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