7 November 2012 A high sensitivity humidity sensor based on an Agarose coated photonic crystal fiber interferometer
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842177 (2012) https://doi.org/10.1117/12.975153
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
We report a novel high sensitivity relative humidity (RH) sensor based on Agarose coated photonic crystal fiber interferometer. We also demonstrate the experimental method to precisely apply a suitable coating thickness to achieve high RH sensitivity. The sensor shows a linear response for an RH change in the range of 40-70 %RH with a humidity resolution of 0.03 %RH and a higher humidity resolution of 0.01 %RH in the range 70-95 %RH. The sensor response is found to be reversible and repeatable with good long term stability.
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Jinesh Mathew, Jinesh Mathew, Yuliya Semenova, Yuliya Semenova, Gerald Farrell, Gerald Farrell, } "A high sensitivity humidity sensor based on an Agarose coated photonic crystal fiber interferometer", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842177 (7 November 2012); doi: 10.1117/12.975153; https://doi.org/10.1117/12.975153
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