Loss determination in microsphere resonators by phase-shift cavity ring-down measurements

Optics Express
J BarnesO Yastrubshak

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.

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Citations

Sep 20, 2011·IEEE Transactions on Nanobioscience·Sukhdev Roy, Mohit Prasad
Jan 1, 2010·Sensors·Gianluca GagliardiPaolo De Natale
Jun 20, 2017·Advanced Materials·Kevin D HeylmanRandall H Goldsmith
Jul 21, 2015·Applied Optics·Chris Hovde, Anthony L Gomez
Mar 15, 2016·Advances in Optics and Photonics·Matthew R ForemanFrank Vollmer
Feb 15, 2012·Optics Express·Vincent Michaud-BelleauClaudine Nì Allen

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