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Proceedings Paper

A 1800-km optical fiber link for metrology, geodesy, and clock comparison
Author(s): Mario Siciliani de Cumis; Cecilia Clivati; Luigi Santamaria Amato; Valentina Di Sarno; Anna Tampellini; Alberto Mura; Roberto Ricci; Federico Perini; Pasquale Maddaloni; Mauro Nanni; Roberto Ambrosini; Roberto Aiello; Claudio Bortolotti; Mauro Roma; Giuseppe Maccaferri; Matteo Stagni; Filippo Levi; Monia Negusini; Paolo De Natale; Giuseppe Bianco; Davide Calonico
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Paper Abstract

Nowadays, optical fiber links are key elements in optical metrology, spectroscopy, quantum communication and geodesy. In geodetic Very Long Baseline Interferometry, a local maser is responsible for providing time and frequency reference at radiotelescope. Here, we present our recent results on frequency dissemination using a coherent fiber link 1800 km long from Turin to Medicina and Matera, Italy. Metrological reference disseminated via fiber link improve the stability of about two order with respect to the local H-maser clocks. This kind of dissemination paves the way to VLBI observation using a remote clock reference on the Italian and European radio observatories.

Paper Details

Date Published: 25 February 2020
PDF: 6 pages
Proc. SPIE 11296, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II, 112961X (25 February 2020); doi: 10.1117/12.2544970
Show Author Affiliations
Mario Siciliani de Cumis, ASI - Italian Space Agency (Italy)
Cecilia Clivati, INRIM - Istituto Nazionale di Ricerca Metrologica (Italy)
Luigi Santamaria Amato, ASI - Italian Space Agency (Italy)
Valentina Di Sarno, CNR-INO - Istituto Nazionale di Ottica (Italy)
Anna Tampellini, INRIM - Istituto Nazionale di Ricerca Metrologica (Italy)
Alberto Mura, INRIM - Istituto Nazionale di Ricerca Metrologica (Italy)
Roberto Ricci, INAF - Istituto di Radioastronomia (Italy)
Federico Perini, INAF - Istituto di Radioastronomia (Italy)
Pasquale Maddaloni, CNR-INO - Istituto Nazionale di Ottica (Italy)
Mauro Nanni, INAF - Istituto di Radioastronomia (Italy)
Roberto Ambrosini, INAF - Istituto di Radioastronomia (Italy)
Roberto Aiello, CNR-INO - Istituto Nazionale di Ottica (Italy)
Claudio Bortolotti, INAF - Istituto di Radioastronomia (Italy)
Mauro Roma, INAF - Istituto di Radioastronomia (Italy)
Giuseppe Maccaferri, INAF - Istituto di Radioastronomia (Italy)
Matteo Stagni, INAF - Istituto di Radioastronomia (Italy)
Filippo Levi, INRIM - Istituto Nazionale di Ricerca Metrologica (Italy)
Monia Negusini, INAF - Istituto di Radioastronomia (Italy)
Paolo De Natale, CNR-INO - Istituto Nazionale di Ottica (Italy)
Giuseppe Bianco, ASI - Italian Space Agency (Italy)
Davide Calonico, INRIM - Istituto Nazionale di Ricerca Metrologica (Italy)


Published in SPIE Proceedings Vol. 11296:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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