Inter-laboratory time and frequency transfer by optical fiber

Jad Saaloui (1) , Patrice Salzenstein (2) , Franck Lardet-Vieudrin (2) , Serge Galliou (2) , François Vernotte (1) , Vincent Giordano (2)

1 LAOB - Laboratoire d'astrophysique de l'observatoire de Besançon (UMR 6091)
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

All the available frequencies in the three Time and Frequency laboratories of Besançon (an Hydrogen Maser at the LCEP, cryogenic resonator oscillators at the LPMO and atomic clock at the LAOB) constitue the state of the art in term of time and frequency references. An optical interlaboratory link of metrological quality makes possible to share theses references of frequency between the various sites. The aim of this paper is thus to characterize the optical link stability and to develop a system to correct the phase fluctuations due to optical fibers. We want to be able to transfer a signal stability of relative frequency of 2.10-15 for a few weeks. Keywords - Optical link, 100MHz, Cesium, Hydrogen Maser, Short term frequency stability.

Jad Saaloui, Patrice Salzenstein, Franck Lardet-Vieudrin, Serge Galliou, François Vernotte, et al.. Inter-laboratory time and frequency transfer by optical fiber. 2003, pp.A2 5-8. ⟨hal-00022875⟩