OPTICALLY-PUMPED SPACE CESIUM CLOCK FOR GALILEO: RESULTS OF THE BREADBOARD

被引：0
|
作者：
Ruffieux, R. [1 ]
Berthoud, P. [1 ]
Haldimann, M. [1 ]
Lecomte, S. [1 ]
Hermann, V. [2 ]
Gazard, M. [2 ]
Barillet, R. [3 ]
Guerandel, S. [3 ]
De Clercq, E. [3 ]
Audoin, C. [3 ]
机构：
[1] Ctr Suisse Elect & Microtech SA, Neuchatel, Switzerland
[2] Thales Elect Devices, Orsay, France
[3] Observ Paris, SYRTE, Paris, France
来源：
PROCEEDINGS OF THE 7TH SYMPOSIUM FREQUENCY STANDARDS AND METROLOGY | 2009年
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中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Thales Electron Devices is leading a French-Swiss industries and research institutes consortium aiming at developing an Optically-pumped Space Cesium Clock for Galileo. The technical objective of this development is to demonstrate a frequency stability of 1x10(-12) tau(-1/2) compatible with an operational lifetime of twelve years. The present clock demonstrator combines the simplest and best technologies available, among those the single optical wavelength scheme and the dark fringe Ramsey cavity. Presently a clock operational signal-to-noise ratio of 21'300 Hz(1/2) has been recorded for a Cs oven heated at 100 degrees C. The clock frequency stability has been measured to be 2.3x10(-12) tau(-1/2). The current limitations and future improvements arc discussed.
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页码：184 / +
页数：2
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