4 papers
Combining fiber Brillouin amplification with a repeater laser station for fiber-based optical frequency dissemination over 1400 km
Sebastian Koke, Alexander Kuhl, Thomas Waterholter +7
We investigate optical frequency dissemination over a 1400 km long fiber link in looped configuration over a pair of underground fibers between Braunschweig and Strasbourg. This fi…
First industrial-grade coherent fiber link for optical frequency standard dissemination
F. Guillou-Camargo, V. Ménoret, E. Cantin +10
We report on a fully bi-directional 680~km fiber link connecting two cities for which the equipment, the set up and the characterization are managed for the first time by an indust…
Two-Branch Fiber Link for International Clock Networks
Dan Xu, Etienne Cantin, Florian Frank +6
We present our work on realizing two-branch fiber links enabling multiple-partner clock comparisons in Europe. We report in detail on the setup connecting two long haul links, and…
Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks
B. M. Roberts, P. Delva, A. Al-Masoudi +51
We search for transient variations of the fine structure constant using data from a European network of fiber-linked optical atomic clocks. By searching for coherent variations in…