Long-distance frequency dissemination with a resolution of 10(-17)

We use a new technique to disseminate microwave reference signals along ordinary optical fiber. The fractional frequency resolution of a link of 86 km in length is 10(-17) for a one day integration time, a resolution higher than the stability of the best microwave or optical clocks. We use the link...

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Bibliographic Details
Published inPhysical review letters Vol. 94; no. 20; p. 203904
Main Authors Daussy, C, Lopez, O, Amy-Klein, A, Goncharov, A, Guinet, M, Chardonnet, C, Narbonneau, F, Lours, M, Chambon, D, Bize, S, Clairon, A, Santarelli, G, Tobar, M E, Luiten, A N
Format Journal Article
LanguageEnglish
Published United States 27.05.2005
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Summary:We use a new technique to disseminate microwave reference signals along ordinary optical fiber. The fractional frequency resolution of a link of 86 km in length is 10(-17) for a one day integration time, a resolution higher than the stability of the best microwave or optical clocks. We use the link to compare the microwave reference and a CO2/OsO4 frequency standard that stabilizes a femtosecond laser frequency comb. This demonstrates a resolution of 3 x 10(-14) at 1 s. An upper value of the instability introduced by the femtosecond laser-based synthesizer is estimated as 1 x 10(-14) at 1 s.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.94.203904