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Proceedings Paper

Development of nano-strain-resolution fiber optic quasi-static strain sensors for geophysical applications
Author(s): Zuyuan He; Qingwen Liu; Tomochika Tokunaga
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Paper Abstract

We report a series of nano-strain resolution fiber-optic static-strain sensors by use of fiber Bragg gratings and fiber Fabry-Perot interferometers, for the monitoring the crustal deformation in geophysics research field. These sensors have identical references for static strain measurement, and the resolution and dynamic range are guaranteed by the interrogation methods. With the fiber Bragg grating sensor, field demonstrations on the monitoring of crustal deformation induced by oceanic tide have been carried out with nano-strain resolution. Development of high performance fiber Fabry-Perot interferometer sensor is also introduced.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84210T (17 October 2012); doi: 10.1117/12.974965
Show Author Affiliations
Zuyuan He, The Univ. of Tokyo (Japan)
Qingwen Liu, The Univ. of Tokyo (Japan)
Tomochika Tokunaga, The Univ. of Tokyo (Japan)

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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