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27 March 2022 Self-temperature compensation approach for fiber specklegram magnetic field sensor based on polarization specklegram analysis
Shicheng Hu, Haifeng Liu, Bo Liu, Wei Lin, Hao Zhang, Binbin Song, Jixuan Wu
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Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121697B (2022) https://doi.org/10.1117/12.2624988
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China
Abstract
In this letter, we proposed a self-temperature-compensation approach for fiber specklegram sensor (FSS) based on polarization specklegram analysis. The temperature compensation is achieved by comparing the variation difference of the two specklegrams with vertical linear polarization state. We designed a fiber specklegram magnetic field sensor employing this method and the magneto-birefringence effect of magnetic fluid. The measurement of magnetic field with high stability and good repeatability has been successfully achieved, which demonstrated the effectiveness of the proposed method. Due to the merits of low cost, ease of implement and system simplicity, the proposed method can promote the practical use of the FSS in long term monitoring.
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Shicheng Hu, Haifeng Liu, Bo Liu, Wei Lin, Hao Zhang, Binbin Song, and Jixuan Wu "Self-temperature compensation approach for fiber specklegram magnetic field sensor based on polarization specklegram analysis", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121697B (27 March 2022); https://doi.org/10.1117/12.2624988
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KEYWORDS
Polarization
Magnetism
Magnetic sensors
Sensors
Fiber optics sensors
Multimode fibers
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