261 citations · 1.5k across the 21 of their papers we have counts for
21 papers
Long-distance chronometric leveling with a portable optical clock
J. Grotti, I. Nosske, S. B. Koller +19
We have measured the geopotential difference between two locations separated by by comparison of two optical lattice clocks via an interferometric fiber link, uti…
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…
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…
Atomic Clocks for Geodesy
Tanja Mehlstäubler, Gesine Grosche, Christian Lisdat +2
We review experimental progress on optical atomic clocks and frequency transfer, and consider the prospects of using these technologies for geodetic measurements. Today, optical at…
Test of special relativity using a fiber network of optical clocks
P. Delva, J. Lodewyck, S. Bilicki +28
Phase compensated optical fiber links enable high accuracy atomic clocks separated by thousands of kilometers to be compared with unprecedented statistical resolution. By searching…
Characterization of a 450-km Baseline GPS Carrier-Phase Link using an Optical Fiber Link
Stefan Droste, Christian Grebing, Julia Leute +6
A GPS carrier-phase frequency transfer link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical fiber link of 920 km…