Optical Frequency Link between Torino and Firenze for remote comparison between Yb and Sr optical clocks
- Davide Calonico
- Cecilia Clivati
- Giovanni A. Costanzo
- Aldo Godone
- Filippo Levi
- Marco Marchetti
- Alberto Mura
- Marco Prevedelli
- Marco Schioppo
- Guglielmo M. Tino
- Massimo E. Zucco
- Nicola Poli
Publication date
January 2012
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
The Italian Institute of Metrology (INRIM), the European Laboratory for NonLinear Spectroscopy (LENS), the Physics and Astronomy Department of the University of Firenze (UNIFI) and the Politecnico of Torino started a project to establish a 650 km optical fiber link that will enable remote frequency comparisons between high accuracy microwave and optical clocks of INRIM and UNIFI-LENS and an absolute measurement of the UNIFI-LENS Sr clock versus INRIM Cesium fountains. We report the overall architecture of the project, the present status of the experiment and the preliminary tests performed on the equipments
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