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Optics Letters

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  • Vol. 21, Iss. 9 — May. 1, 1996
  • pp: 683–685

Strain sensing of modern composite materials with a spatial/wavelength-division multiplexed fiber grating network

Y. J. Rao, D. A. Jackson, L. Zhang, and I. Bennion  »View Author Affiliations


Optics Letters, Vol. 21, Issue 9, pp. 683-685 (1996)
http://dx.doi.org/10.1364/OL.21.000683


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Abstract

A spatial/wavelength-division multiplexing topology with combination of a tunable-wavelength filter and an interferometric wavelength scanner is used to interrogate a range of fiber Bragg grating (FBG) strain sensors embedded in modern composite materials. A nine-element FBG sensor system based on this topology is demonstrated for quasi-static strain sensing of a carbon fiber reinforced plastic plate for aerospace applications. Preliminary experimental results show that a strain resolution of ~1.8μ∈ rms with an ~30-Hz bandwidth ( ~ 0.32 μ / Hz) for quasi-static strain measurement has been achieved.

© 1996 Optical Society of America

History
Original Manuscript: August 21, 1995
Published: May 1, 1996

Citation
Y. J. Rao, L. Zhang, I. Bennion, and D. A. Jackson, "Strain sensing of modern composite materials with a spatial/wavelength-division multiplexed fiber grating network," Opt. Lett. 21, 683-685 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-9-683


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