Ann. Phys. Fr.
Volume 32, Number 2-3, 2007COLOQ'1010th conference on lasers and quantum optics
|Page(s)||187 - 189|
|Published online||23 May 2008|
Frequency dissemination with a 86-km optical fibre for fundamental tests of physics
LPL, Laboratoire de Physique des Lasers, Université Paris 13, 99 avenue J.-B. Clément, 93430 Villetaneuse, France
2 LNE-SYRTE, Système de Référence Temps Espace, Observatoire de Paris, 61 avenue de l'Observatoire, 75014 Paris, France
Corresponding author: firstname.lastname@example.org
A 43-km optical link has been developed between LPL and LNE-SYRTE, to transfer a primary reference frequency in the RF or microwave range. The phase noise introduced by the fluctuations of the propagation delay is compensated using a delay line. The resolution has been improved by increasing the transferred frequency up to 9 GHz. This link was used to compare a molecular optical clock in LPL to a primary reference in SYRTE, which leads to a test of the stability of electron to proton mass ratio.
© EDP Sciences, 2008