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Proceedings Paper

Benchmarking the response of Bragg gratings written in micro-structured and bow tie fiber embedded in composites
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Paper Abstract

Fiber Bragg gratings written in Bow-tie fiber and in highly birefringent micro-structured optical fiber are embedded in a carbon fiber reinforced epoxy. The Bragg peak wavelength shifts are measured under controlled bending, transversal load and thermal cycling of the composite sample. The results evidence the feasibility of using micro-structured fibers in structural integrity monitoring. We obtain similar axial as well as transversal strain sensitivities for the two embedded fiber types. We also highlight an important advantage of the micro-structured fibers for this application which is the low temperature dependence of the birefringence.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75035P (5 October 2009); doi: 10.1117/12.834831
Show Author Affiliations
G. Luyckx, Ghent Univ. (Belgium)
E. Voet, Ghent Univ. (Belgium)
T. Geernaert, Vrije Univ. Brussel (Belgium)
K. Chah, Vrije Univ. Brussel (Belgium)
T. Nasilowski, Vrije Univ. Brussel (Belgium)
W. De Waele, Ghent Univ. (Belgium)
M. Becker, IPHT Jena (Germany)
H. Bartelt, IPHT Jena (Germany)
W. Urbanczyk, Wroclaw Univ. of Technology (Poland)
J. Wojcik, Maria Curie-Skłodowska Univ. (Poland)
J. Degrieck, Ghent Univ. (Belgium)
F. Berghmans, Vrije Univ. Brussel (Belgium)
H. Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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