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Optical frequency reference using small whispering gallery mode resonators stabilized with a dual mode scheme December 28th, 2012

A small temperature-stabilized WGM resonator has been shown to have an equivalent temperature coefficient of less than 40 ppb, close to that of ULE. We utilize the dual mode scheme for the resonator temperature stabilization. IN addition, we investigated potentials and limitations of the dual mode scheme in frequency stabilization. In the experiment, we demonstrated a 1560 nm laser stabilized to 1.3×10^-12 at 1 s and a long term drift of 21 kHz/hr over one day period. The result has been published in the most recent Optics Express