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Precision measurement of the hydrogen 1S-2S frequency via a 920-km fiber link.
Matveev A, Parthey CG, Predehl K, Alnis J, Beyer A, Holzwarth R, Udem T, Wilken T, Kolachevsky N, Abgrall M, Rovera D, Salomon C, Laurent P, Grosche G, Terra O, Legero T, Schnatz H, Weyers S, Altschul B, Hänsch TW. Matveev A, et al. Among authors: terra o. Phys Rev Lett. 2013 Jun 7;110(23):230801. doi: 10.1103/PhysRevLett.110.230801. Epub 2013 Jun 6. Phys Rev Lett. 2013. PMID: 25167479
Phase-coherent frequency comparison of optical clocks using a telecommunication fiber link.
Schnatz H, Terra O, Predehl K, Feldmann T, Legero T, Lipphardt B, Sterr U, Grosche G, Holzwarth R, Hänsch TW, Udem T, Lu ZH, Wang LJ, Ertmer W, Friebe J, Pape A, Rasel EM, Riedmann M, Wübbena T. Schnatz H, et al. Among authors: terra o. IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Jan;57(1):175-81. doi: 10.1109/TUFFC.2010.1395. IEEE Trans Ultrason Ferroelectr Freq Control. 2010. PMID: 20040443
Subspace tracking for phase noise source separation in frequency combs.
Razumov A, Heebøll HR, Dummont M, Terra O, Dong B, Riebesehl J, Varming P, Pedersen JE, Ros FD, Bowers JE, Zibar D. Razumov A, et al. Among authors: terra o. Opt Express. 2023 Oct 9;31(21):34325-34347. doi: 10.1364/OE.495663. Opt Express. 2023. PMID: 37859192 Free article.
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