282 citations · 1k across the 15 of their papers we have counts for
15 papers
Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map
Ivan Alonso, Cristiano Alpigiani, Brett Altschul +246
We summarize the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportu…
A hybrid solution for simultaneous transfer of ultrastable optical frequency, RF frequency and UTC time-tags over optical fiber
P. Krehlik, H. Schnatz, L. Sliwczynski
We describe a fiber-optic solution for simultaneous distribution of all signals generated at todays most advanced time and frequency laboratories, i.e. an ultrastable optical refer…
Providing 1E-16 short-term stability of a 1.5 μm laser to optical clocks
C. Hagemann, C. Grebing, T. Kessler +5
We report on transferring 1E-16-level fractional frequency stability of a "master laser" operated at 1.5 μm to a "slave laser" operated at 698 nm, using a femtosecond fiber comb as…
Remote frequency measurement of the 1S0-3P1 transition in laser cooled Mg-24
J. Friebe, M. Riedmann, T. Wübbena +9
We perform Ramsey-Bordé spectroscopy on laser-cooled magnesium atoms in free fall to measure the 1S0 \rightarrow 3P1 intercombination transition frequency. The measured value of 65…
The 87-Sr optical frequency standard at PTB
St. Falke, H. Schnatz, J. S. R. Vellore Winfred +8
With 87-Sr atoms confined in a one dimensional optical lattice, the frequency of the optical clock transition 5s^2 ^1S_0 - 5s5p ^3P_0 has been determined to be 429 228 004 229 872.…
Long-distance remote comparison of ultrastable optical frequencies with 1e-15 instability in fractions of a second
Andre Pape, Osama Terra, Jan Friebe +8
We demonstrate a fully optical, long-distance remote comparison of independent ultrastable optical frequencies reaching a short term stability that is superior to any reported remo…