Vol. 97

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2021-04-08

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

By Lashari Ghulam Abbas, Farhan Mumtaz, Yutang Dai, Ai Zhou, Wenbin Hu, and Muhammad Aqueel Ashraf
Progress In Electromagnetics Research Letters, Vol. 97, 87-94, 2021
doi:10.2528/PIERL21030702

Abstract

A highly sensitive temperature sensor based on a polymer cavity of a Fabry-Perot interferometer (FPI) is experimentally demonstrated. The interferometer gives ease in fabrication, and it can be formed by the induction of a thermos-sensitive polymer layer in between two single mode fibers (SMFs). The polymer is used as an FPI cavity for temperature sensing. Due to high thermal expansion coefficient (TEC) and thermos-optic coefficient (TOC) of polymer make the interferometer highly sensitive to ambient temperature. The maximum temperature sensitivity of 2.2209 nm/°C for the polymer FPI cavity of 40.61 µm in the ambient temperature range of 28°C to 34°C is obtained. The proposed sensor shows the advantages of high sensitivity, compactness, simple fabrication, and low cost. Thus, it may become a part of various practical applications in the field of environmental science and engineering sciences.

Citation


Lashari Ghulam Abbas, Farhan Mumtaz, Yutang Dai, Ai Zhou, Wenbin Hu, and Muhammad Aqueel Ashraf, "Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing," Progress In Electromagnetics Research Letters, Vol. 97, 87-94, 2021.
doi:10.2528/PIERL21030702
http://www.jpier.org/PIERL/pier.php?paper=21030702

References