A fiber link for the remote comparison of optical clocks and geodesy experiments

Author

Cecilia, Clivati ; Davide, Calonico ; Matteo, Frittelli ; Alberto, Mura ; Filippo, Levi

Author_Institution

Physic Metrol. Div., Ist. Naz. di Ricerca Metrol.-INRIM, Turin, Italy

fYear

2015

fDate

12-16 April 2015

Firstpage

579

Lastpage

582

Abstract

Differential comparisons of distant optical clocks with uncertainties in the 10^-18 level linked by phase-stabilized optical fibers can be used to probe the Geoid potential at the centimeter sensitivity. Here, we present the realization and characterization of a coherent optical link that will enable gravitational potential measurements on a baseline of 90km and at 1000m of difference in altitude. This is a proof-of-principle experiment that aims at exploring extensive interconnections between geodesy and frequency metrology.

Keywords

clocks; frequency measurement; geodesy; measurement uncertainty; optical fibre communication; fiber link; frequency metrology; geodesy experiments; gravitational potential measurements; interconnections; optical clocks; phase-stabilized optical fibers; uncertainties; Adaptive optics; Clocks; Frequency measurement; Optical fiber communication; Optical noise; Optical sensors; Optical variables measurement; coherent optical links; comparison of optical clocks; gravitational red-shift;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium & the European Frequency and Time Forum (FCS), 2015 Joint Conference of the IEEE International

Conference_Location

Denver, CO

Print_ISBN

978-1-4799-8865-5

Type

conf

DOI

10.1109/FCS.2015.7138911

Filename

7138911