Abstract
We investigated the transfer of a 194 THz optical frequency along a 1840 km fiber link. The fractional frequency instability expressed as the modified Allan deviation is 2.7 × 10−15 at 1 s with 4 × 10−19 after 100 s. The transferred frequency shows no systematic offset within an uncertainty of 3 × 10−19. Analyzing the underlying noise structure reveals a τ−2 response in the modified Allan deviation, which is confirmed by calculations of the frequency instability from frequency counter data as well as from phase noise data.
© 2014 Optical Society of America
PDF ArticleMore Like This
S. Droste, K. Predehl, T. W. Hänsch, Th. Udem, R. Holzwarth, S. M. F. Raupach, F. Ozimek, H. Schnatz, and G. Grosche
CM4N.1 CLEO: Science and Innovations (CLEO:S&I) 2013
S. Droste, K. Predehl, J. Alnis, T. W. Hänsch, Th. Udem, R. Holzwarth, S. M. F. Raupach, O. Terra, Th. Legero, H. Schnatz, and G. Grosche
CTh4A.1 CLEO: Science and Innovations (CLEO:S&I) 2012
S. Droste, R. Holzwarth, C. Grebing, J. Leute, S.M.F. Raupach, A. Bauch, and G. Grosche
SW3O.5 CLEO: Science and Innovations (CLEO:S&I) 2014