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Two-Way Link for Time Interval Comparison of Optical Clocks over Free-Space
Published
Author(s)
Fabrizio R. Giorgetta, William C. Swann, Ian R. Coddington, Esther Baumann, Jean-Daniel Deschenes, Laura C. Sinclair, Alexander M. Zolot, Nathan R. Newbury
Abstract
We demonstrate a free-space link for clock comparisons based on the two-way exchange of pulse trains from combs. The residual uncertainty is 5 * 10^17 in 100 seconds over a 120 m air path, with longer distances possible.
Giorgetta, F.
, Swann, W.
, Coddington, I.
, Baumann, E.
, Deschenes, J.
, Sinclair, L.
, Zolot, A.
and Newbury, N.
(2012),
Two-Way Link for Time Interval Comparison of Optical Clocks over Free-Space, Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, [online], https://doi.org/10.1364/CLEO_SI.2012.CTh5D.10
(Accessed October 21, 2025)