Active frequency stabilization of an ultra-high Q whispering-gallery-mode microresonator

Author(s): D. O'Shea, A. Rettenmaier, A. Rauschenbeutel

Journal: Applied Physics B

Volume: 99

Page(s): 623-627

Year: 2010

DOI Number: 10.1007/s00340-010-4014-x

Link: Link to publication


We report on active frequency stabilization of a whispering-gallery-mode microresonator with an ultra-high quality factor exceeding 2×108 to an atomic transition using the Pound–Drever–Hall technique. The critically coupled resonator is stabilized to 5.4% of its linewidth, or 206 kHz. Thermal bistability and mode-splitting are also observed and have a significant effect on the error signal.

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