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arXiv · 0807.1882

Long-distance frequency transfer over an urban fiber link using optical phase stabilization

Haifeng Jiang·Fabien Kéfélian·Scott Crane·Olivier Lopez·Michel Lours·Jacques Millo·David Holleville·Pierre Lemonde·Christian Chardonnet·Anne Amy-Klein·Georgio Santarelli
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Abstract

We transferred the frequency of an ultra-stable laser over 86 km of urban fiber. The link is composed of two cascaded 43-km fibers connecting two laboratories, LNE-SYRTE and LPL in Paris area. In an effort to realistically demonstrate a link of 172 km without using spooled fiber extensions, we implemented a recirculation loop to double the length of the urban fiber link. The link is fed with a 1542-nm cavity stabilized fiber laser having a sub-Hz linewidth. The fiber-induced phase noise is measured and cancelled with an all fiber-based interferometer using commercial off the shelf pigtailed telecommunication components. The compensated link shows an Allan deviation of a few 10-16 at one second and a few 10-19 at 10,000 seconds.

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Haifeng Jiang, Fabien Kéfélian, Scott Crane, Olivier Lopez, Michel Lours, Jacques Millo, David Holleville, Pierre Lemonde, Christian Chardonnet, Anne Amy-Klein, Georgio Santarelli. 2008-07-11. Long-distance frequency transfer over an urban fiber link using optical phase stabilization. https://doi.org/10.1364/josab.25.002029

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