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  • Received: May. 7, 2015

    Accepted: Jun. 19, 2015

    Posted: Jan. 23, 2019

    Published Online: Sep. 14, 2018

    The Author Email: Yanhui Wei (

    DOI: 10.3788/COL201513.090603

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    Xuyou Li, Weiwei Ling, Yanhui Wei, Zhenlong Xu. Three-dimensional model of thermal-induced optical phase shifts in rotation sensing[J]. Chinese Optics Letters, 2015, 13(9): 090603

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Chinese Optics Letters, Vol. 13, Issue 9, 090603 (2015)

Three-dimensional model of thermal-induced optical phase shifts in rotation sensing

Xuyou Li, Weiwei Ling, Yanhui Wei*, and Zhenlong Xu

Author Affiliations

  • Harbin Engineering University, College of Automation, Harbin, Heilongjiang 150001, China


By studying the thermal-induced phase shift mechanism of an interferometric fiber-optic gyroscope (IFOG) sensing coil, a novel generalized expression based on a three-dimensional (3D) model is proposed. Compared with the traditional pure Shupe effect model, the simulation results show that the new 3D model, including elastic strain and the elasto-optical effect, can describe the thermal effect of the coils more accurately. Experiments with temperature change rates between 40°C and 70°C are performed to verify the effectiveness of the proposed generalized expression. The results of our work can guide researchers in identifying countermeasures to reduce the thermal-induced bias error in IFOG.

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