Universal methods for suppressing the light shift in atomic clocks using power modulation

We show that the light shift in atomic clocks can be suppressed using time variation of the interrogation field intensity. By measuring the clock output at two intensity levels, error signals can be generated that simultaneously stabilize a local oscillator to an atomic transition and correct for th...

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Bibliographic Details
Published in:arXiv.org 2020-04
Main Authors: Yudin, V I, M Yu Basalaev, Taichenachev, A V, Pollock, J W, Newman, Z L, Shuker, M, Hansen, A, Hummon, M T, Boudot, R, Donley, E A, Kitching, J
Format: Article
Language:English
Subjects:
Atomic clocks
Clocks & watches
Continuous radiation
Error signals
Laboratory equipment
Optical pumping
Spectrum analysis
Variation
Online Access:Get full text
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Summary:We show that the light shift in atomic clocks can be suppressed using time variation of the interrogation field intensity. By measuring the clock output at two intensity levels, error signals can be generated that simultaneously stabilize a local oscillator to an atomic transition and correct for the shift of this transition caused by the interrogating optical field. These methods are suitable for optical clocks using one- and two-photon transitions, as well as for microwave clocks based on coherent population trapping or direct interrogation. The proposed methods can be widely used both for high-precision scientific instruments and for a wide range of commercial clocks, including chip-scale atomic clocks.
ISSN:2331-8422
DOI:10.48550/arxiv.1911.02935