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Proceedings Paper

An expander system of high stable laser beam for cesium atomic fountain clocks
Author(s): Jiang Chen; Rui Lin; Dandan Liu; Hui Zhang; Jun Ruan; Junru Shi; Fengxiang Yu; Shougang Zhang
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Paper Abstract

The quality of the cold atoms sample plays an important role to improve the performance of cesium atomic fountain clocks. The preparation of cold atoms sample has a strict requirement for cooling lasers characteristics such as power stability, polarization, collimation, uniformity and verticality. This work implements a design of an expander system of high stable laser beam for the cold atom preparation. The cooling laser characteristics can be adjusted by the design, and the use of non-magnetic materials to avoid the magnetic field on the impact of cold atom. The cold atom sample with the number of 2×108 and temperature of 5μk was obtained by expander system. The result meets the requirements of the preparation of cold atoms for cesium atomic fountain clocks.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104571Z (24 October 2017);
Show Author Affiliations
Jiang Chen, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Time and Frequency Primary Standards (China)
Rui Lin, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Time and Frequency Primary Standards (China)
Dandan Liu, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Time and Frequency Primary Standards (China)
Hui Zhang, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Primary Standards (China)
Jun Ruan, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Primary Standards (China)
Junru Shi, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Time and Frequency Primary Standards (China)
Fengxiang Yu, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Time and Frequency Primary Standards (China)
Shougang Zhang, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Primary Standards (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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