Study on influence of polymer functional resin for optical fiber sensing on FOG

Xiaole Wu; Chao Song; Xiaoming Zhao; Yinggui Shi; Bohan Liu; Yong Chen

doi:10.1117/12.2580312

5 November 2020 Study on influence of polymer functional resin for optical fiber sensing on FOG

Xiaole Wu, Chao Song, Xiaoming Zhao, Yinggui Shi, Bohan Liu, Yong Chen

Proceedings Volume 11569, AOPC 2020: Optical Information and Network; 115690S (2020) https://doi.org/10.1117/12.2580312
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

Based on the Sagnac effect, the small changes in thermally induced stresses and microcosmic size of optical fiber coil can cause the drift of the Shupe error and scale factor of fiber optic gyroscope (FOG). As polymer functional resin represents a high proportion in optical fiber coil, its physical and chemical properties determine largely the thermally induced stresses and dimensional stability of the coil, thus influencing the performance of FOG. Given the demands for the long-term stability and temperature characteristics of FOG, this paper studies the influence of molecular chain structure and thermal conductivity of polymer functional resin for optical fiber sensing on FOG. The experimental results suggest: high thermal conductivity can reduce the thermal induced stresses of polymer functional resin of reticular molecular structure, greatly improving the zero bias stability of FOG at all temperature; hyperbranched molecular structure reports outstanding creep-resistant characteristics thanks to the significantly reduced internal free volume of optical fiber coil after encapsulation and insignificant dimensional changes at all temperatures, thus ensuring long-term stability of the scale factor of FOG.

Citation Download Citation

Xiaole Wu, Chao Song, Xiaoming Zhao, Yinggui Shi, Bohan Liu, and Yong Chen "Study on influence of polymer functional resin for optical fiber sensing on FOG", Proc. SPIE 11569, AOPC 2020: Optical Information and Network, 115690S (5 November 2020); https://doi.org/10.1117/12.2580312

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