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Proceedings Paper

Ultra-high Q whispering-gallery-mode bottle microresonators: properties and applications
Author(s): Danny O'Shea; Christian Junge; Sebastian Nickel; Michael Pöllinger; Arno Rauschenbeutel
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Paper Abstract

Highly prolate-shaped whispering-gallery-mode "bottle microresonators" have recently attracted considerable attention due to their advantageous properties. We experimentally show that such resonators offer ultra-high quality factors, microscopic mode volumes, and near lossless in- and out-coupling of light using ultra-thin optical fibers. Additionally, bottle microresonators have a simple and customizable mode structure. This enables full tunability using mechanical strain and simultaneous coupling of two ultra-thin coupling fibers in an add-drop configuration. We present two applications based on these characteristics: In a cavity quantum electrodynamics experiment, we actively stabilize the frequency of the bottle microresonator to an atomic transition and operate it in an ultra-high vacuum environment in order to couple single laser-cooled atoms to the resonator mode. In a second experiment, we show that the bottle microresonator can be used as a low-loss, narrow-band add-drop filter. Using the Kerr effect of the silica resonator material, we furthermore demonstrate that this device can be used for single-wavelength all-optical signal processing.

Paper Details

Date Published: 18 February 2011
PDF: 11 pages
Proc. SPIE 7913, Laser Resonators and Beam Control XIII, 79130N (18 February 2011); doi: 10.1117/12.876790
Show Author Affiliations
Danny O'Shea, Technische Univ. Wien (Austria)
Christian Junge, Technische Univ. Wien (Austria)
Sebastian Nickel, Johannes Gutenberg Univ. Mainz (Germany)
Michael Pöllinger, Johannes Gutenberg Univ. Mainz (Germany)
Arno Rauschenbeutel, Technische Univ. Wien (Austria)

Published in SPIE Proceedings Vol. 7913:
Laser Resonators and Beam Control XIII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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