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Proceedings Paper

Long-distance ultrastable frequency transfer over urban fiber link: toward a European network
Author(s): Fabien Kéfélian; Haifeng Jiang; Olivier Lopez; Christian Chardonnet; Anne Amy-Klein; Giorgio Santarelli
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Paper Abstract

Experiments of transmission of sub-Hz cavity-stabilized 1542 nm laser frequency using a pair of 43 km dark fibers in urban environment are reported on successively 86 km and 172 km, with fractional frequency instability in the 10-19 range. A new approach is then introduced consisting in using part of an optical telecommunications network carrying simultaneously data traffic using a DWDM scheme to multiplex the metrological signal. This method is experimentally implemented using 22 km of fiber linking Université Paris 13 to its internet access point without degradation of the link instability. We finally present a project of large scale link between Paris and the German border using RENATER network which could constitute the first step of the building of a European optical network for ultrastable frequency dissemination and comparison.

Paper Details

Date Published: 25 August 2009
PDF: 9 pages
Proc. SPIE 7431, Time and Frequency Metrology II, 74310D (25 August 2009); doi: 10.1117/12.828273
Show Author Affiliations
Fabien Kéfélian, Lab. de Physique des Lasers, CNRS, Univ. Paris 13 (France)
Haifeng Jiang, LNE-SYRTE, Observatoire de Paris, CNRS and UPMC (France)
Olivier Lopez, Lab. de Physique des Lasers, CNRS, Univ. Paris 13 (France)
Christian Chardonnet, Lab. de Physique des Lasers, CNRS, Univ. Paris 13 (France)
Anne Amy-Klein, Lab. de Physique des Lasers, CNRS, Univ. Paris 13 (France)
Giorgio Santarelli, LNE-SYRTE, Observatoire de Paris, CNRS and UPMC (France)


Published in SPIE Proceedings Vol. 7431:
Time and Frequency Metrology II
Tetsuya Ido; Derryck T. Reid, Editor(s)

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