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    Loss Determination in Microsphere Resonators by Phase-Shift Cavity Ring-Down Measurements

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    Barnes_et_al_2008_Loss_Determination.pdf (441.2Kb)
    Date
    2016-03-21
    Author
    Barnes, Jack A.
    Carver, B.
    Fraser, James M.
    Gagliardi, G.
    Loock, Hans-Peter
    Tian, Zhaobing
    Wilson, M.W.B.
    Yam, Scott S.-H.
    Yastrubshak, O.
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    Abstract
    The optical loss of whispering gallery modes of resonantly excited microresonator spheres is determined by optical lifetime measurements. The phase-shift cavity ring-down technique is used to extract ring-down times and optical loss from the difference in amplitude modulation phase between the light entering the microresonator and light scattered from the microresonator. In addition, the phase lag of the light exiting the waveguide, which was used to couple light into the resonator, was measured. The intensity and phase measurements were fully described by a model that assumed interference of the cavity modes with the light propagating in the waveguide.
    URI for this record
    http://hdl.handle.net/1974/14135
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