Open AccessVibration sensing using a tapered bend-insensitive fiber based Mach-Zehnder interferometer
Author(s) -
Yingke Xu,
Ping Lu,
Zengguang Qin,
Jérémie Harris,
Farhana Baset,
V. R. Bhardwaj,
Xiaoyi Bao
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.003031
Subject(s) - interferometry , optics , mach–zehnder interferometer , vibration , optical fiber , materials science , cladding (metalworking) , fiber optic sensor , acoustics , physics , metallurgy
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.