Herman, D.
, Droste, S.
, Baumann, E.
, Roslund, J.
, Churin, D.
, Cingoz, A.
, Deschenes, J.
, Khader, I.
, Swann, W.
, Nelson, C.
, Newbury, N.
and Coddington, I.
(2018),
Femtosecond timekeeping: slip-free optical clockwork for optical timescales, Physical Review Applied, [online], https://doi.org/10.1103/PhysRevApplied.9.044002
(Accessed October 8, 2025)
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Femtosecond timekeeping: slip-free optical clockwork for optical timescales
Published
Author(s)
, , , Jonathan Roslund, Dmitriy Churin, Arman Cingoz, Jean-Daniel Deschenes, , , , ,
Abstract
The generation of true optical time standards will require the conversion of the highly stable optical frequency output of an optical atomic clock to a high-fidelity time output. We demonstrate comb-based clockwork that phase-coherently integrates ~7x10e20 optical cycles of an input optical frequency to create a coherent time output. We verify the underlying stability of the optical timing system by comparing two comb-based clockworks with a common input optical frequency and showCitation
Physical Review Applied
Volume
9
Pub Type
Journals
Download Paper
Keywords
(140.3510) Lasers, fiber, (140.3425) Laser stabilization, (120.5050) Phase measurement
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Created April 3, 2018, Updated October 3, 2019