General Methods for Suppressing the Light Shift in Atomic Clocks Using Power Modulation

V. I. Yudin, M. Yu Basalaev, A. V. Taichenachev, J. W. Pollock, Z. L. Newman, M. Shuker, A. Hansen, M. T. Hummon, R. Boudot, E. A. Donley, J. Kitching

Research output: Contribution to journalArticlepeer-review

Abstract

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- A nd 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.

Original languageEnglish
Article number024001
Number of pages8
JournalPhysical Review Applied
Volume14
Issue number2
DOIs
Publication statusPublished - Aug 2020

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