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Optical Atomic Clock Comparison through Turbulent Air
Martha I. Bodine, Jean-Daniel Deschênes, Isaac H. Khader +32
We use frequency comb-based optical two-way time-frequency transfer (O-TWTFT) to measure the optical frequency ratio of state-of-the-art ytterbium and strontium optical atomic cloc…
Fully phase-stabilized 1 GHz turnkey frequency comb at 1.56 m
Daniel M. B. Lesko, Alexander J. Lind, Nazanin Hoghooghi +7
Low noise and high repetition rate optical frequency combs are desirable for many applications from timekeeping to precision spectroscopy. For example, gigahertz repetition rate so…
A six-octave optical frequency comb from a scalable few-cycle erbium fiber laser
Daniel M. B. Lesko, Henry Timmers, Sida Xing +3
A compact and robust coherent laser light source that provides spectral coverage from the ultraviolet to infrared is desirable for numerous applications, including heterodyne super…
Mid-infrared frequency combs at 10 GHz
Abijith Kowligy, David Carlson, Daniel Hickstein +5
We demonstrate mid-infrared (MIR) frequency combs at 10 GHz repetition rate via intra-pulse difference-frequency generation (DFG) in quasi-phase-matched nonlinear media. Few-cycle…
Coherent Optical Clock Down-Conversion for Microwave Frequencies with 10-18 Instability
Takuma Nakamura, Josue Davila-Rodriguez, Holly Leopardi +12
Optical atomic clocks are poised to redefine the SI second, thanks to stability and accuracy more than one hundred times better than the current microwave atomic clock standard. Ho…
All-fiber frequency comb at 2 μm providing 1.4-cycle pulses
Sida Xing, Abijith S. Kowligy, Daniel M. B. Lesko +2
We report an all-polarization-maintaining fiber optic approach to generating sub-2 cycle pulses at 2 μm and a corresponding octave-spanning optical frequency comb. Our configuratio…