6 February 2012 Exploring the frequency stability limits of whispering gallery mode resonators for metrological applications
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Abstract
Whispering gallery mode (WGM) resonators are attracting increasing interest as possible frequency reference cavities. Unlike commonly used Fabry-Perot cavities, however, WGM resonators are dielectric resonators lled with a bulk medium whose properties have a signicant impact on the stability of its resonance frequencies. Thermal and other refraction index uctuations of the medium induce additional frequency instability that has to be reduced to a minimum. On the other hand, a small monolithic resonator provides opportunity for integration and immunity against vibration and acceleration disturbances. This feature is essential when the cavity operates in a non-laboratory environment. In this paper, we report a case study of vibration sensitivity reduction for a crystalline resonator and discuss a pathway towards the inhibition of vibration- and acceleration- induced frequency uctuations.
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Yanne K. Chembo, Yanne K. Chembo, Lukas Baumgartel, Lukas Baumgartel, Nan Yu, Nan Yu, } "Exploring the frequency stability limits of whispering gallery mode resonators for metrological applications", Proc. SPIE 8236, Laser Resonators, Microresonators, and Beam Control XIV, 82360Q (6 February 2012); doi: 10.1117/12.908990; https://doi.org/10.1117/12.908990
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