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A grapefruit microstructure fiber temperature sensor coated with liquid crystal based on waist-enlarged taper

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Abstract

In this paper, a grapefruit microstructure fiber (GMF) temperature sensor coated with liquid crystal (LC) based on waist-enlarged taper is proposed and fabricated, and its temperature sensing characteristics are analyzed. The waist-enlarged taper is formed at the fusion point between single mode fiber (SMF) and GMF. The capillary glass tube is sleeved outside GMF, LC is filled into the capillary glass tube, and its two ends are finally sealed to form a sensor. The experimental results show that when the length of GMF is 2.5 cm, the temperature sensitivity of the sensor can reach up to 195.3 pm/°C in the range of 30–90 °C, and it has a good stability for reuse. Thereby, it can be used in biochemical, industrial production and other temperature detection areas.

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Authors and Affiliations

  1. College of Mechanical and Electrical Engineering, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

    Feng Wang

  2. School of Information Science and Engineering, Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, Yanshan University, Qinhuangdao, 066004, China

    Jiaxuan Li, Rongjing Zhang & Xinghu Fu

Authors
  1. Feng Wang
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  2. Jiaxuan Li
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  3. Rongjing Zhang
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  4. Xinghu Fu
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Correspondence to Xinghu Fu.

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The authors declare no conflict of interest.

Additional information

This work has been supported by the Science and Technology Project of Hebei Education Department (No.ZD2022108), the Natural Science Foundation of Hebei Province (No.F2021203102), and the Post-graduate’s Innovation Fund Project of Hebei Province (No.CXZZSS2022118).

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Wang, F., Li, J., Zhang, R. et al. A grapefruit microstructure fiber temperature sensor coated with liquid crystal based on waist-enlarged taper. Optoelectron. Lett. 20, 142–146 (2024). https://doi.org/10.1007/s11801-024-3003-y

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  • DOI: https://doi.org/10.1007/s11801-024-3003-y

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