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Metrological features of the rubidium two-photon standards of the BNM-LPTF andKastler Brossel Laboratories

Published online by Cambridge University Press:  15 November 1998

L. Hilico*
Affiliation:
Laboratoire Kastler Brossel, École Normale Supérieure, Université Pierre et Marie Curie (Laboratoire associé au CNRS URA 18), 4 place Jussieu, Tour 12, E 01, C 74, 75252, Paris Cedex 05, France Département de physique et modélisation, Université d'Évry-Val-d'Essonne, Boulevard des Coquibus, 91025 Évry Cedex, France
R. Felder
Affiliation:
Bureau International des Poids et Mesures (BIPM), Pavillon de Breteuil, 92312, Sèvres Cedex, France
D. Touahri
Affiliation:
Laboratoire Primaire du Temps et des Fréquences (BNM-LPTF) Observatoire de Paris, 61 avenue de l'Observatoire, 75014 Paris, France
O. Acef
Affiliation:
Laboratoire Primaire du Temps et des Fréquences (BNM-LPTF) Observatoire de Paris, 61 avenue de l'Observatoire, 75014 Paris, France
A. Clairon
Affiliation:
Laboratoire Primaire du Temps et des Fréquences (BNM-LPTF) Observatoire de Paris, 61 avenue de l'Observatoire, 75014 Paris, France
F. Biraben
Affiliation:
Laboratoire Kastler Brossel, École Normale Supérieure, Université Pierre et Marie Curie (Laboratoire associé au CNRS URA 18), 4 place Jussieu, Tour 12, E 01, C 74, 75252, Paris Cedex 05, France
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Abstract

We have built three optical frequency standards based on the two-photon transition of rubidium at 778 nm, and analysed their performance over a period of more than three years. We discuss some systematic effects that could lead to the reproducibility we observe, and point out the possible improvements of the devices. We also examine the short and long term stabilities of the systems, and show that we have reached their ultimate performances.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 1998

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