Transfer of an optical frequency over an urban fiber link

Haifeng Jiang (1) , Fabien Kéfélian (2) , Scott Crane (1, 3) , Olivier Lopez (2) , Michel Lours (1) , Jacques Millo (1) , David Holleville (1) , Pierre Lemonde (1) , Christian Chardonnet (2) , Anne Amy-Klein (2) , Georgio Santarelli (1)

1 SYRTE - Systèmes de Référence Temps Espace
2 LPL - Laboratoire de Physique des Lasers
3 USNO - United States Naval Observatory

We transferred the frequency of an ultra-stable laser over 172 km of urban fiber. The link is composed of two cascaded 43-km fibers connecting two laboratories, LNE-SYRTE and LPL in Paris area. By implementing a recirculation loop we extend the link length up to 172 km. 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 1 s and a few 10-19 at 10,000 seconds.

Mots clés: lien optique; métrologie; dissémination de fréquence

Domaines: Physique Quantique [quant-ph]

Haifeng Jiang, Fabien Kéfélian, Scott Crane, Olivier Lopez, Michel Lours, et al.. Transfer of an optical frequency over an urban fiber link. 2008. ⟨hal-00295894v1⟩