Compact optical system for cesium atomic fountain clock

Jiang Chen; Jun Ruan; Junru Shi; Fengxiang Yu; Hui Zhang; Xinliang Wang; Shougang Zhang

doi:10.1117/12.2242698

27 September 2016 Compact optical system for cesium atomic fountain clock

Jiang Chen, Jun Ruan, Junru Shi, Fengxiang Yu, Hui Zhang, Xinliang Wang, Shougang Zhang

Proceedings Volume 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment; 968436 (2016) https://doi.org/10.1117/12.2242698
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

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.

Citation Download Citation

Jiang Chen, Jun Ruan, Junru Shi, Fengxiang Yu, Hui Zhang, Xinliang Wang, and Shougang Zhang "Compact optical system for cesium atomic fountain clock", Proc. SPIE 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 968436 (27 September 2016); https://doi.org/10.1117/12.2242698

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