Author :
Predehl, K. ; Parthey, C.G. ; Matveev, A. ; Beyer, A. ; Alnis, J. ; Kolachevsky, N. ; Pohl, R. ; Droste, S. ; Udem, Th ; Hänsch, T.W. ; Holzwarth, R. ; Schnatz, H. ; Legero, Th ; Lipphardt, B. ; Terra, O. ; Grosche, G. ; Weyers, S.
Keywords :
atomic clocks; hydrogen neutral atoms; optical fibre communication; optical fibres; H; actively noise-compensated fiber link; atomic hydrogen; distance 920 km; high-precision spectroscopy; highly stable remote clock comparisons; optical fiber; precision spectroscopy; remote Cs-fountain clock; telecommunication fiber link; Atomic clocks; Atomic measurements; Frequency measurement; Hydrogen; Optical fiber amplifiers; Spectroscopy;
