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Published on: November 11, 2013
A novel Cs-(129)Xe atomic spin gyroscope with closed-loop Faraday modulation
Jiancheng Fang1, Shuangai Wan, Jie Qin
1School of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, China.
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.
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