Microstructured Optical Fiber Sensors Embedded in a Laminate Composite for Smart Material Applications

Authors: C. Sonnenfeld, S. Sulejmani, T. Geernaert, S. Eve, N. Lammens, G. Luyckx, E. Voet, J. Degrieck, W. Urbanczyk, P. Mergo, M. Becker, H. Bartelt, F. Berghmans, H. Thienpont
Abstract: Fiber Bragg gratings written in highly birefringent microstructured optical fiber with a dedicated design are embedded in a composite fiber-reinforced polymer. The Bragg peak wavelength shifts are measured under controlled axial and transversal strain and during thermal cycling of the composite sample. We obtain a sensitivity to transversal strain that exceeds values reported earlier in literature by one order of magnitude. Our results evidence the relevance of using microstructured optical fibers for structural integrity monitoring of composite material structures.
Year: 2011
Start Page: 2566
End Page: 2579
Journal title: Sensors
Volume: 2011
Issue: 11
DOI: 10.3390/s110302566
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