171 citations · 247 across the 2 of their papers we have counts for
4 papers
Ultra-stable laser with average fractional frequency drift rate below
Christian Hagemann, Christian Grebing, Christian Lisdat +6
Cryogenic single-crystal optical cavities have the potential to provide highest dimensional stability. We have investigated the long-term performance of an ultra-stable laser syste…
A strontium lattice clock with inaccuracy and its frequency
Stephan Falke, Nathan Lemke, Christian Grebing +10
We have measured the absolute frequency of the optical lattice clock based on Sr at PTB with an uncertainty of using two caesium fountain clocks. This i…
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…
A sub-40 mHz linewidth laser based on a silicon single-crystal optical cavity
T. Kessler, C. Hagemann, C. Grebing +6
State-of-the-art optical oscillators based on lasers frequency stabilized to high finesse optical cavities are limited by thermal noise that causes fluctuations of the cavity lengt…