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arXiv · 0904.0865

A vibration-insensitive optical cavity and absolute determination of its ultrahigh stability

Y. N. Zhao·J. Zhang·A. Stejskal·T. Liu·V. Elman·Z. H. Lu·L. J. Wang
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Abstract

We use the three-cornered-hat method to evaluate the absolute frequency stabilities of three different ultrastable reference cavities, one of which has a vibration-insensitive design that does not even require vibration isolation. An Nd:YAG laser and a diode laser are implemented as light sources. We observe $\sim1$ Hz beat note linewidths between all three cavities. The measurement demonstrates that the vibration-insensitive cavity has a good frequency stability over the entire measurement time from 100 $μ$s to 200 s. An absolute, correlation-removed Allan deviation of $1.4\times10^{-15}$ at 1 s of this cavity is obtained, giving a frequency uncertainty of only 0.44 Hz.

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Y. N. Zhao, J. Zhang, A. Stejskal, T. Liu, V. Elman, Z. H. Lu, L. J. Wang. 2009-04-06. A vibration-insensitive optical cavity and absolute determination of its ultrahigh stability. https://doi.org/10.1364/oe.17.008970

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