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Kr-Based Buffer Gas for Rb Vapor-Cell Clocks

Authors :
Claudio E. Calosso
Filippo Levi
Salvatore Micalizio
Aldo Godone
Michele Gozzelino
Source :
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 68(4)
Publication Year :
2020

Abstract

Optically pumped Rb vapor cell clocks are by far the most used devices for timekeeping in all ground and space applications. The compactness and the robustness of this technology make Rb clocks extremely well fit to a large number of applications, including GNSS, telecommunication, and network synchronization. Many efforts are devoted to improve the stability of Rb clocks and reduce their environmental sensitivity. In this article, we investigate the use of a novel mixture of buffer gas based on Kr and N2, capable of reducing by more than one order of magnitude the barometric and temperature sensitivities of the clock, with possible improvement of their long-term stability.

Details

ISSN :
15258955
Volume :
68
Issue :
4
Database :
OpenAIRE
Journal :
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Accession number :
edsair.doi.dedup.....98e8ae30406c1c9323d170871c137572