The Environment Phase Noise in Interferometric

被引：0
|
作者：
Liu, Yishi [1 ]
Su, Jingjing [1 ]
Chen, Xingfan [1 ,2 ]
机构：
[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
[2] Quantum Sensing Ctr, Zhejiang Lab, Hangzhou 310000, Peoples R China
来源：
SEVENTH SYMPOSIUM ON NOVEL PHOTOELECTRONIC DETECTION TECHNOLOGY AND APPLICATIONS | 2021年 / 11763卷
基金：
美国国家科学基金会;
关键词：
fiber-optic gyroscope; environmental noise; noise suppression;
D O I：
10.1117/12.2588218
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The environmental noise in interferometric fiber optic gyroscopes (IFOGs) has a significant impact on the self-noise and angle random walk (ARW) at 0-100Hz, the bandwidth commonly used in applications. The stability of the structure affects mostly bandwidths larger than 10Hz, while the airflow in the environment mainly affects that lower than 20Hz. The self-noise in a well-fixed structure and a nonwind room is experimentally demonstrated as 1.3441x10(-8)rad/s/root Hz and 2.3896 x10(-8) rad/s/root Hz, 9.08dB and 9.23dB lower than that with environmental noise, respectively, at 100Hz in the 9-km IFOG. This proves that it is essential to avoid environmental noise for the use and testing of high-precision IFOGs.
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页数：6
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