title: Vibration sensing using a tapered bend-insensitive fiber based Mach-Zehnder interferometer.
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.
authors.affiliation: Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada.
authors.forename: Yanping
authors.initials: Y
authors.lastname: Xu
authors.forename: Ping
authors.initials: P
authors.lastname: Lu
authors.forename: Zengguang
authors.initials: Z
authors.lastname: Qin
authors.forename: Jeremie
authors.initials: J
authors.lastname: Harris
authors.forename: Farhana
authors.initials: F
authors.lastname: Baset
authors.forename: Ping
authors.initials: P
authors.lastname: Lu
authors.forename: Vedula Ravi
authors.initials: VR
authors.lastname: Bhardwaj
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Bao
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D014732:Vibration