Suppression of Dick Effect by Interleaving Lock in a Ramsey-CPT Atomic Clock

Pengfei Cheng, Jianwei Zhang, Daonong Zhang, L.J. Wang

Abstract: To suppress the Dick effect, one of the main limitations of short-term frequency stability for pulsed atomic clocks, the interleaving lock technique is applied to eliminate the dead time. In this paper, we demonstrate the technique in a pulsed Ramsey-coherent population trapping clock with two identical Cs atomic ensembles. The measured short-term frequency stability is improved from 1.3×10?11 at 1 s to 3.0×10?12 at 1 s, and part of the Allan deviation curve exhibits 1/?0.96 slope.
Published in: Proceedings of the 50th Annual Precise Time and Time Interval Systems and Applications Meeting
January 28 - 31, 2019
Hyatt Regency Reston
Reston, Virginia
Pages: 83 - 84
Cite this article: Cheng, Pengfei, Zhang, Jianwei, Zhang, Daonong, Wang, L.J., "Suppression of Dick Effect by Interleaving Lock in a Ramsey-CPT Atomic Clock," Proceedings of the 50th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, January 2019, pp. 83-84. https://doi.org/10.33012/2019.16745
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