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Updated: May 29, 2026
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Temperature measurement and stabilization in a birefringent whispering gallery mode resonator
D V Strekalov1, R J Thompson, L M Baumgartel
1Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109-8099, USA. dmitry.v.strekalov@jpl.nasa.gov
Abstract:
Temperature measurement with nano-Kelvin resolution is demonstrated at room temperature, based on the thermal dependence of an optical crystal anisotropy in a high quality whispering gallery mode resonator. As the resonator's TE and TM modes frequencies have different temperature coefficients, their differential shift provides a sensitive measurement of the temperature variation, which is used for active stabilization of the temperature.
