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Proceedings Paper

Bend-insensitive fiber based vibration sensor
Author(s): Yanping Xu; Ping Lu; Farhana Baset; Vedula Ravi Bhardwaj; Xiaoyi Bao
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Paper Abstract

We report two novel fiber-optic vibration sensors based on standard telecom bend-insensitive fiber (BIF). A tapered BIF forming a fiber Mach-Zehnder interferometer could measure continuous and damped vibration from 1 Hz up to 500 kHz. An enclosed microcantilever is fabricated inside the BIF by chemical etching and fusion spliced with a readout singlemode fiber that exhibits a frequency range from 5 Hz to 10 kHz with high signal-to-noise ratio (SNR) up to 68 dB. The unique double cladding structure of the BIF ensures both sensors with advantages of compactness, high resistance to the external disturbance and stronger mechanical strength.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915775 (2 June 2014); doi: 10.1117/12.2059241
Show Author Affiliations
Yanping Xu, Univ. of Ottawa (Canada)
Ping Lu, Univ. of Ottawa (Canada)
Farhana Baset, Univ. of Ottawa (Canada)
Vedula Ravi Bhardwaj, Univ. of Ottawa (Canada)
Xiaoyi Bao, Univ. of Ottawa (Canada)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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