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HIGHLY SENSITIVE POLYMER BASED FABRY-PEROT INTERFEROMETER FOR TEMPERATURE SENSING
Author(s) -
Lashari Ghulam Abbas,
Farhan Mumtaz,
Yutang Dai,
Ai Guo Zhou,
Wenbin Hu,
Muhammad Aqueel Ashraf
Publication year - 2021
Publication title -
progress in electromagnetics research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.245
H-Index - 33
ISSN - 1937-6480
DOI - 10.2528/pierl21030702
Subject(s) - fabry–pérot interferometer , interferometry , materials science , optoelectronics , polymer , optics , composite material , physics , wavelength
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.

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