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Intensity demodulation strain sensor based on two waist‐enlarged fiber tapers
Author(s) -
An Jiali,
Liang Houhui,
Jin Yongxing,
Dong Xinyong
Publication year - 2014
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.28220
Subject(s) - demodulation , cladding mode , waist , interferometry , optics , microwave , interference (communication) , materials science , mach–zehnder interferometer , cladding (metalworking) , acoustics , optical fiber , fiber optic sensor , engineering , physics , telecommunications , composite material , polarization maintaining optical fiber , medicine , channel (broadcasting) , obesity
An intensity demodulation strain sensor based on two waist‐enlarged tapers is presented. The two waist‐enlarged tapers form a Mach‐Zehnder (MZ) interferometer. It can be simply fabricated by a commercial splicer and a good physical strength can also be remained for the enlarged taper waist. The MZ interferometer incorporates intermodal interference between core mode and cladding mode. Sensitivity of 0.00215 dBm/µε is achieved experimentally for strain measurement. The proposed sensor has great application due to its low cost, simple construction, and demodulation. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:954–956, 2014