Fiber optic gyroscope vibration error due to fiber tail length asymmetry based on elastic-optic effect

Yonggang Zhang; Zhongxing Gao

doi:10.1117/1.OE.51.12.124403

3 December 2012 Fiber optic gyroscope vibration error due to fiber tail length asymmetry based on elastic-optic effect

Yonggang Zhang, Zhongxing Gao

Author Affiliations +

Optical Engineering, Vol. 51, Issue 12, 124403 (December 2012). https://doi.org/10.1117/1.OE.51.12.124403

Abstract

In the assembly of fiber optic gyroscope (FOG), the summation of the fiber tail length of waveguide and fiber ring in two directions cannot be exactly equal (i.e., fiber tail length of FOG in two directions is asymmetry). We analyze and calculate the vibration error of FOG due to this fiber tail length asymmetry based on elastic-optic effect. Inertial navigation simulation is performed to show attitude and positioning errors caused by this vibration error, which clearly shows the importance of reducing fiber-tail length asymmetry in high-accuracy applications.

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Yonggang Zhang and Zhongxing Gao "Fiber optic gyroscope vibration error due to fiber tail length asymmetry based on elastic-optic effect," Optical Engineering 51(12), 124403 (3 December 2012). https://doi.org/10.1117/1.OE.51.12.124403

Published: 3 December 2012

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