1. A Coherent Optical Fiber Link for Very Long Baseline Interferometry
- Author
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Mauro Roma, Roberto Ricci, Giuseppe Maccaferri, Monia Negusini, Giuseppe Bianco, Mario Siciliani de Cumis, Matteo Stagni, Roberto Aiello, Federico Perini, Luigi Santamaria Amato, Valentina Di Sarno, Claudio Bortolotti, Alberto Mura, Pasquale Maddaloni, Cecilia Clivati, Filippo Levi, and Davide Calonico
- Subjects
Physics ,Optical fiber ,business.industry ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Metrology ,law.invention ,010309 optics ,Radio telescope ,Optics ,law ,0103 physical sciences ,Very-long-baseline interferometry ,Maser ,0210 nano-technology ,Baseline (configuration management) ,business - Abstract
We realize a phase-stabilised optical fiber backbone that connects the Italian National Metrology Institute with two radio telescopes over a 600 km baseline. This allows referencing of Very Long Baseline Interferometry (VLBI) facilities with the best atomic frequency standards available today and the implementation of a common-clock architecture, which we are now using to assess VLBI ultimate performances.
- Published
- 2020