Environmentally stabilized crystalline WGM resonator
Abstract:
We report on the development of a packaged optical whispering-gallery-mode (WGM) resonator exhibiting low vibration sensitivity. The fractional frequency shift is measured to be on the order of 10-10/g along the vertical axis and 10-11/g along the horizontal axis. The resonator, operating in the optical domain with an intrinsic quality factor of Q∼109, is employed for laser frequency stabilization. The resulting laser exhibited a relative frequency stability 3×10-12 level at 10 ms integration time. These results highlight the potential of optical WGM resonators as compact, mechanically robust frequency references for precision photonic systems.
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