Bottle microresonator with actively stabilized evanescent coupling

Author(s): Ch. Junge, S. Nickel, D. O'Shea, A. Rauschenbeutel

Journal: Optics Letters

Volume: 36

Page(s): 3488

Year: 2011

DOI Number: 10.1364/OL.36.003488

Link: Link to publication


The evanescent coupling of light between a whispering-gallery-mode bottle microresonator and a subwavelength-diameter coupling fiber is actively stabilized by means of the Pound–Drever–Hall technique. We demonstrate the stabilization of a critically coupled resonator with a control bandwidth of 0.1 Hz , yielding a residual transmission of (9±3)×10 −3 for more than an hour. Simultaneously, the frequency of the resonator mode is actively stabilized.


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