학술논문
Design and metrological features of microwave synthesizers for atomic fountain frequency standard
Document Type
Periodical
Author
Source
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control IEEE Trans. Ultrason., Ferroelect., Freq. Contr. Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on. 54(4):729-735 Apr, 2007
Subject
Language
ISSN
0885-3010
1525-8955
1525-8955
Abstract
In this paper we describe the improved redesign of the microwave frequency synthesizers for Laboratoire National d'Essais-Systemes de Reference Temps-Espace (LNE-SYRTE) atomic fountains. The synthesizers use a cryogenic oscillator to generate both Cs and Rb hyperfine frequencies based on a new distribution frequency of 1 GHz. The main metrological features (phase noise, long-term phase stability, and spectral purity) of the synthesizers have been measured in situ connected to an atomic fountain and are compatible with an accuracy goal of 10 -16 for the atomic fountains. The simultaneous test of two different synthesizers on the FO2 atomic fountain at the 10 -16 level also is reported