Improving the sensitivity of a humidity sensor based on fiber bend coated with a hygroscopic coating |
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| Authors: | Jinesh Mathew Yuliya Semenova Ginu Rajan Pengfei Wang Gerald Farrell |
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| Affiliation: | DIT Photonics Research Centre, School of Electronic and Communications Engineering, Dublin Institute of Technology, Dublin 8, Ireland |
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| Abstract: | A highly sensitive all-fiber humidity sensor is demonstrated. The sensor behaves as a humidity dependent optical switch between 85% and 90% RH. This sensor also offers the advantages of simple structure and low cost and its response is fast and reversible in nature. The typical humidity response of the sensor is suitable for using it as a human breath rate monitor. |
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| Keywords: | Macro bend fibre Humidity sensor Poly(ethylene oxide) |
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