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Conferences > ACPC > 2021 > T3A > T3A.7

Relative Humidity Sensor Based on Graphene Oxide-coated D-shaped Fiber and Polarimetric Heterodyning Demodulation

Kuikui Guo, Jun He, and Yiping Wang

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Abstract

We demonstrate a polarimetric fiber laser system for relative humidity (RH) sensing based on the beat frequency demodulation. The RH sensor probe was fabricated by the graphene oxide-coated D-shaped fiber. The experimental results show that a sensitivity of 34.7 kHz/RH% can be obtained in a RH range of 30%-98%. With such high performance, it can be used in widespread potential fields, such as biology, chemical processing and food processing.

© 2021 The Author(s)

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