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Proceedings Paper

High-sensitivity force measurement using optical tapered fiber with optical frequency-domain reflectometry
Author(s): Xiaozhen Wang; Wenhai Li; Liang Chen; Xiaoyi Bao
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Paper Abstract

Optical fiber taper is proposed to be a high-sensitivity force sensor by using high-resolution, high-sensitivity optical frequency-domain reflectometry technique. The cross-correlation wavelength shift in the uniform region of taper is related to the refractive index change of the fundamental mode. The wavelength-force sensitivity of a fiber taper is dramatically improved due to its reduced waist diameter. It was demonstrated that that a taper with a waist diameter of ~6μm has a force resolution of 6.35μN and a force sensitivity of 620.83nm/N, which is about 500 times higher than that of SMF, over its uniform taper range with a spatial resolution of 3.85mm.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211F (17 October 2012); doi: 10.1117/12.975074
Show Author Affiliations
Xiaozhen Wang, Univ. of Ottawa (Canada)
Wenhai Li, Univ. of Ottawa (Canada)
Liang Chen, Univ. of Ottawa (Canada)
Xiaoyi Bao, Univ. of Ottawa (Canada)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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