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

By Y. Zhao, J. Zhang, A. Stejskal, T. Liu, V. Elman, Z. Lu and L. Wang

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 similar to 1 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 mu s to 200 s. An absolute, correlation-removed Allan deviation of 1.4 x 10(-15) at 1 s of this cavity is obtained, giving a frequency uncertainty of only 0.44 Hz. (C) 2009 Optical Society of Americ

Year: 2009
DOI identifier: 10.1364/OE.17.008970
OAI identifier: oai:escidoc.org:escidoc:2371444
Provided by: MPG.PuRe
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