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
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.