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Proceedings Paper

Compact optical system for cesium atomic fountain clock
Author(s): Jiang Chen; Jun Ruan; Junru Shi; Fengxiang Yu; Hui Zhang; Xinliang Wang; Shougang Zhang
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Paper Abstract

The optical system plays a significant role to cesium atomic fountain clocks, which manipulates and detects population of cesium atoms. This paper presents a compact optical system for cesium atomic fountain clocks. The optical system provides two beams with 32mW separately for cooling atoms and six beams of 12mW respectively for trapping atoms with the frequency tuning from 80MHz to 220MHz. The relative intensity noise of the detect laser beam reduces from 1.33×10-6 Hz to 1.52×10-10 Hz at 1Hz by the laser power stabilization system. The optical system operates continuously for 30 days with the fluctuation of optical power less than 3% approximately. And the frequency stability is 3×10-15 at 1000s. The results show the optical system satisfies with the needs of our cesium atomic fountain clock developed and establishes the foundation for cesium atomic fountain continuous operation.

Paper Details

Date Published: 27 September 2016
PDF: 7 pages
Proc. SPIE 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 968436 (27 September 2016); doi: 10.1117/12.2242698
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)
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)
Hui Zhang, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Primary Standards (China)
Xinliang Wang, 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. 9684:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
Yudong Zhang; Fan Wu; Ming Xu; Sandy To, Editor(s)

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