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arXiv · 0907.3500

High-resolution microwave frequency dissemination on an 86-km urban optical link

O. Lopez·A. Amy-Klein·M. Lours·Ch. Chardonnet·G. Santarelli
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Abstract

We report the first demonstration of a long-distance ultra stable frequency dissemination in the microwave range. A 9.15 GHz signal is transferred through a 86-km urban optical link with a fractional frequency stability of 1.3x10-15 at 1 s integration time and below 10-18 at one day. The optical link phase noise compensation is performed with a round-trip method. To achieve such a result we implement light polarisation scrambling and dispersion compensation. This link outperforms all the previous radiofrequency links and compares well with recently demonstrated full optical links.

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O. Lopez, A. Amy-Klein, M. Lours, Ch. Chardonnet, G. Santarelli. 2009-11-12. High-resolution microwave frequency dissemination on an 86-km urban optical link. https://doi.org/10.1007/s00340-009-3832-1

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