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Optical microfiber coupler based humidity sensor with a polyethylene oxide coating
Author(s) -
Bo Lin,
Wang Pengfei,
Semenova Yuliya,
Farrell Gerald
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28874
Subject(s) - microfiber , humidity , materials science , coating , optical fiber , optics , microwave , polyethylene , fiber optic sensor , optoelectronics , composite material , fiber , telecommunications , engineering , physics , thermodynamics
Optical microfiber couplers (MFCs) with certain geometries are sensitive to local refractive changes. By incorporating a humidity‐sensitive polyethylene oxide coating, a tapered optical MFC can work as a humidity sensor. We fabricated such a humidity sensor and demonstrated its sensing ability by monitoring spectral shifts in a wavelength domain. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:457–460, 2015
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