A novel Cs-(129)Xe atomic spin gyroscope with closed-loop Faraday modulation

Jiancheng Fang; Shuangai Wan; Jie Qin; Chen Zhang; Wei Quan; Heng Yuan; Haifeng Dong

doi:10.1063/1.4819306

A novel Cs-(129)Xe atomic spin gyroscope with closed-loop Faraday modulation

Rev Sci Instrum. 2013 Aug;84(8):083108. doi: 10.1063/1.4819306.

Authors

Jiancheng Fang¹, Shuangai Wan, Jie Qin, Chen Zhang, Wei Quan, Heng Yuan, Haifeng Dong

Affiliation

¹ School of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, China.

PMID: 24007054
DOI: 10.1063/1.4819306

Abstract

We report a novel Cs-(129)Xe atomic spin gyroscope (ASG) with closed-loop Faraday modulation method. This ASG requires approximately 30 min to start-up and 110 °C to operate. A closed-loop Faraday modulation method for measurement of the optical rotation was used in this ASG. This method uses an additional Faraday modulator to suppress the laser intensity fluctuation and Faraday modulator thermal induced fluctuation. We theoretically and experimentally validate this method in the Cs-(129)Xe ASG and achieved a bias stability of approximately 3.25 °∕h.