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  • Title: Vibration sensing using a tapered bend-insensitive fiber based Mach-Zehnder interferometer.
    Author: Xu Y, Lu P, Qin Z, Harris J, Baset F, Lu P, Bhardwaj VR, Bao X.
    Journal: Opt Express; 2013 Feb 11; 21(3):3031-42. PubMed ID: 23481761.
    Abstract:
    In this study, a novel fiber-optic sensor consisting of a tapered bend-insensitive fiber based Mach-Zehnder interferometer is presented to realize damped and continuous vibration measurement. The double cladding structure and the central coating region of the in-fiber interferometer ensure an enhanced mechanical strength, reduced external disturbance, and a more uniform spectrum. A damped vibration frequency range of 29-60 Hz as well as continuous vibration disturbances ranging from 1 Hz up to 500 kHz are successfully demonstrated.
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