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https://hdl.handle.net/2440/134620
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Type: | Journal article |
Title: | Simultaneous measurement of temperature and relative humidity using cascaded C-shaped Fabry-Perot interferometers |
Author: | Li, F. Li, X. Zhou, X. Zhang, Y.N. Lv, R.Q. Zhao, Y. Xie, L. Nguyen, L.V. Ebendorff-Heidepriem, H. Warren-Smith, S.C. |
Citation: | Journal of Lightwave Technology, 2022; 40(4):1209-1215 |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Issue Date: | 2022 |
ISSN: | 0733-8724 1558-2213 |
Statement of Responsibility: | Fei Li, Xue-gang Li, Xue Zhou, Ya-nan Zhang, Ri-qing Lv, Yong Zhao, Liu-shun Xie, Linh Viet Nguyen, Heike Ebendorff-Heidepriem, and Stephen C. Warren-Smith |
Abstract: | In this paper, a novel platform for simultaneous measurement of relative humidity (RH) and temperature using dual Fabry–Perot interferometers (FPIs) based on C-shaped fiber was demonstrated. The sensor was composed by splicing two sections of C-shaped fiber between single mode fiber (SMF). Polydimethylsiloxane (PDMS) and polyvinyl alcohol (PVA) are filled in the two sections of C-shaped fibers to increase sensitivity to temperature and RH. This is the first demonstration that solid polymer materials can be added to the C-shaped fiber interferometers for sensing. In our experiment, RH sensitivities of -0.128 nm/%RH and 0.038 nm/%RH in the range of 20%RH to 45%RH, and temperature sensitivities of 0.022 nm/°C and -0.722 nm/°C in the temperature range of 15 °C to 45°C, were acquired for dual FPIs, respectively. We verified that it is possible to use the sensitivity matrix method to measure two parameters simultaneously. In addition, it has the benefits of simple structure, excellent stability and high sensitivity, and has a broad application prospect in agriculture, food processing and environmental measurement. |
Keywords: | C-shaped fiber; fabry-perot interferometer; relative humidity; sensitivity matrix; simultaneous measurement |
Rights: | © 2021 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See https://www.ieee.org/publications/rights/index.html for more information. |
DOI: | 10.1109/JLT.2021.3127525 |
Grant ID: | http://purl.org/au-research/grants/arc/FT200100154 |
Published version: | http://dx.doi.org/10.1109/jlt.2021.3127525 |
Appears in Collections: | Earth and Environmental Sciences publications |
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