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Proceedings Paper • Open Access

Performance demonstration of a single-frequency optically-pumped cesium beam frequency standard for space applications
Author(s): S. Lecomte; M. Haldimann; R. Ruffieux; P. Thomann; P. Berthoud

Paper Abstract

Observatoire de Neuchâtel (ON) is developing a compact optically-pumped cesium beam frequency standard in the frame of an ESA-ARTES 5 project. The simplest optical scheme, which is based on a single optical frequency for both preparation and detection processes of atoms, has been chosen to fulfill reliability constraints of space applications. With our laboratory demonstrator operated at 852 nm (D2 line), we have measured a frequency stability of σy=2.74x10-12 τ -1/2, which is compliant with the Galileo requirement. The atomic resonator is fully compliant to be operated with a single diode laser at 894 nm (D1 line). Sensitivity measurements of the clock signal to the microwave power and to the optical pumping power are also presented. Present performance limitations are discussed and further improvements are proposed in order to reach our ultimate frequency stability goal of σy=1x10-12 τ -1/2. The clock driving software is also briefly described.

Paper Details

Date Published: 21 November 2017
PDF: 7 pages
Proc. SPIE 10567, International Conference on Space Optics — ICSO 2006, 105673Z (21 November 2017); doi: 10.1117/12.2308111
Show Author Affiliations
S. Lecomte, Observatoire cantonal de Neuchâtel (Switzerland)
M. Haldimann, Observatoire cantonal de Neuchâtel (Switzerland)
R. Ruffieux, Observatoire cantonal de Neuchâtel (Switzerland)
P. Thomann, Observatoire cantonal de Neuchâtel (Switzerland)
P. Berthoud, Observatoire cantonal de Neuchâtel (Switzerland)

Published in SPIE Proceedings Vol. 10567:
International Conference on Space Optics — ICSO 2006
Errico Armandillo; Josiane Costeraste; Nikos Karafolas, Editor(s)

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