Distributed optical fiber vibration sensor based on spectrum analysis of Polarization-OTDR system.
A fully distributed optical fiber vibration sensor is demonstrated based on spectrum analysis of Polarization-OTDR system. Without performing any data averaging, vibration disturbances up to 5 kHz is successfully demonstrated in a 1km fiber link with 10m spatial resolution. The FFT is performed at each spatial resolution; the relation of the disturbance at each frequency component versus location allows detection of multiple events simultaneously with different and the same frequency components.
Zhang
Ziyi
Z
Physics Department, University of Ottawa, 150 Louis Pasteur, Ottawa, ON, K1N 6N5, Canada.
Bao
Xiaoyi
X
D004867:Equipment Design; D005336:Fiber Optic Technology; D007834:Lasers; D008027:Light; D008859:Microscopy, Polarization / Q000295:instrumentation* / Q000379:methods; D055100:Optical Fibers; D055095:Optics and Photonics; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D013053:Spectrophotometry / Q000295:instrumentation* / Q000379:methods; D014732:Vibration