462 citations · 1.2k across the 16 of their papers we have counts for
16 papers
Studying fundamental limit of optical fiber links to level
Dan Xu, Won-kyu Lee, Fabio Stefani +3
We present an hybrid fiber link combining effective optical frequency transfer and evaluation of performances with a self-synchronized two-way comparison. It enables us to detect t…
Length measurement and stabilisation of the diagonals of a square area laser gyroscope
N. Beverini, G. Carelli, A. Di Virgilio +4
Large frame ring laser gyroscopes are top sensitivity inertial sensors able to measure absolute angular rotation rate below in few seconds. The development of…
Analysis of 90 days operation of the gyroscope GINGERINO
J Belfi, N Beverini, G. Carelli +6
GINGERINO is a square ring-laser prototype, which has been built to investigate the level of noise inside the Gran Sasso underground laboratory. It Is meant for fundamental physics…
First international comparison of fountain primary frequency standards via a long distance optical fiber link
J. Guéna, S. Weyers, M. Abgrall +25
We report on the first comparison of distant caesium fountain primary frequency standards (PFSs) via an optical fiber link. The 1415 km long optical link connects two PFSs at LNE-S…
Hybrid fiber links for accurate optical frequency comparisons
Won-Kyu Lee, Fabio Stefani, Anthony Bercy +3
We present the first experimental demonstration over a 43-km-long urban fiber network of a local two-way optical frequency comparison, which does not require any synchronization of…
A clock network for geodesy and fundamental science
C. Lisdat, G. Grosche, N. Quintin +32
Leveraging the unrivaled performance of optical clocks in applications in fundamental physics beyond the standard model, in geo-sciences, and in astronomy requires comparing the fr…
Cascaded optical fiber link using the Internet network for remote clocks comparison
Nicola Chiodo, Nicolas Quintin, Fabio Stefani +7
We report a cascaded optical link of 1100 km for ultra-stable frequency distribution over an Internet fiber network. The link is composed of four spans for which the propagation no…
Frequency and time transfer for metrology and beyond using telecommunication network fibres
Olivier Lopez, Fabien Kéfélian, Haifeng Jiang +11
The distribution and the comparison of an ultra-stable optical frequency and accurate time using optical fibres have been greatly improved in the last ten years. The frequency stab…
Tackling the Limits of Optical Fiber Links
Fabio Stefani, Olivier Lopez, Anthony Bercy +5
We theoretically and experimentally investigate relevant noise processes arising in optical fiber links, which fundamentally limit their relative stability. We derive the unsuppres…
Two-Way Optical Frequency Comparisons Over 100km Telecommunication Network Fibers
Anthony Bercy, Fabio Stefani, Olivier Lopez +3
By using two-way frequency transfer, we demonstrate ultra-high resolution comparison of optical frequencies over a telecommunication fiber link of 100 km operating simultaneously d…
In-line extraction of an ultra-stable frequency signal over an optical fiber link
Anthony Bercy, Saïda Guellati-Khélifa, Fabio Stefani +5
We demonstrate in-line extraction of an ultra-stable frequency signal over an optical link of 92-km of installed telecommunication fibers, following the proposition of G. Grosche i…
Horizontal rotation signals detected by "G-Pisa" ring laser for the Mw=9.0, March 2011, Japan earthquake
J. Belfi, N. Beverini, G. Carelli +5
We report the observation of the ground rotation induced by the Mw=9.0, 11th of March 2011, Japan earthquake. The rotation measurements have been conducted with a ring laser gyrosc…
Measuring the Virgo area tilt noise with a laser gyroscope
Jacopo Belfi, Nicolò Beverini, Filippo Bosi +4
We report on the measurements of tilt noise performed at the Virgo site with a ring laser gyroscope. The apparatus is a He-Ne laser operating in a square cavity mounted on a vertic…
Measuring Gravito-magnetic Effects by Multi Ring-Laser Gyroscope
F. Bosi, G. Cella, A. Di Virgilio +19
We propose an under-ground experiment to detect the general relativistic effects due to the curvature of space-time around the Earth (de Sitter effect) and to rotation of the plane…
A 1.82 m^2 ring laser gyroscope for nano-rotational motion sensing
Jacopo Belfi, Nicolò Beverini, Filippo Bosi +5
We present a fully active-controlled He-Ne ring laser gyroscope, operating in square cavity 1.35 m in side. The apparatus is designed to provide a very low mechanical and thermal d…
A laser gyroscope system to detect the Gravito-Magnetic effect on Earth
A. Di Virgilio, K. U. Schreiber, A. Gebauer +5
Large scale square ring laser gyros with a length of four meters on each side are approaching a sensitivity of 1x10^-11 rad/s/sqrt(Hz). This is about the regime required to measure…