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Proceedings Paper

A high sensitivity humidity sensor based on an Agarose coated photonic crystal fiber interferometer
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Paper 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.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842177 (7 November 2012); doi: 10.1117/12.975153
Show Author Affiliations
Jinesh Mathew, Dublin Institute of Technology (Ireland)
Yuliya Semenova, Dublin Institute of Technology (Ireland)
Gerald Farrell, Dublin Institute of Technology (Ireland)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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