Microstructured optical fiber sensors embedded in a laminate composite for smart material applications

Camille Sonnenfeld, Sanne Sulejmani, Thomas Geernaert, S. Eve, N. Lammens, G. Luyckx, E. Voet, J. Degrieck, W. Urbanczyk, P. Mergo, M. Becker, H. Bartelt, Francis Berghmans, Hugo Thienpont

Research output: Contribution to journalArticle

68 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)2566-2579
Number of pages14
JournalSensors
Volume11
Issue number3
Publication statusPublished - Mar 2011

Keywords

  • BRAGG GRATINGS; STRAIN-MEASUREMENT
  • TEMPERATURE; COEFFICIENTS; STRESS; LOAD

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