18 February 2011 Ultra-high Q whispering-gallery-mode bottle microresonators: properties and applications
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Proceedings Volume 7913, Laser Resonators and Beam Control XIII; 79130N (2011) https://doi.org/10.1117/12.876790
Event: SPIE LASE, 2011, San Francisco, California, United States
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.
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Danny O'Shea, Christian Junge, Sebastian Nickel, Michael Pöllinger, Arno Rauschenbeutel, "Ultra-high Q whispering-gallery-mode bottle microresonators: properties and applications", Proc. SPIE 7913, Laser Resonators and Beam Control XIII, 79130N (18 February 2011); doi: 10.1117/12.876790; https://doi.org/10.1117/12.876790

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