Journal
APPLIED PHYSICS B-LASERS AND OPTICS
Volume 105, Issue 1, Pages 129-148Publisher
SPRINGER
DOI: 10.1007/s00340-011-4714-x
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Funding
- DFG [557]
- Volkswagen Foundation
- ESF
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We review our recent work on tunable, ultra-high quality factor whispering-gallery-mode bottle microresonators and highlight their applications in non-linear optics and in quantum optics experiments. Our resonators combine ultra-high quality factors of up to Q=3.6x10(8), a small mode volume, and near-lossless fiber coupling, with a simple and customizable mode structure enabling full tunability. We study, theoretically and experimentally, non-linear all-optical switching via the Kerr effect when the resonator is operated in an add-drop configuration. This allows us to optically route a single-wavelength cw optical signal between two fiber ports with high efficiency. Finally, we report on progress toward strong coupling of single rubidium atoms to an ultra-high Q mode of an actively stabilized bottle microresonator.
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