Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 21, Issue 1-4, Pages 6-8Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2008.2007915
Keywords
Bragg gratings; microstructured fiber; photonic crystal fiber; structural health monitoring
Funding
- Institute for the Promotion of Innovation through Science and Technology, Flanders (IWT-Vlaanderen)
- EU
- COST 299 Action FIDES,
- IWT SBO
- Research Foundation-Flanders (FWO-Vlaanderen)
- IAP
- GOA
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We present fiber Bragg grating based transversal load sensing with a highly birefringent microstructured optical fiber. For the bare fiber, the change of the Bragg peak separation under a transverse line load was simulated with a finite-element model and experimentally verified. We also show that microstructured optical fibers with fiber Bragg gratings can be successfully embedded in a carbon fiber reinforced composite material. The linear dependence of the Bragg peak separation to a transversal stress in the composite sample was measured to be 15.3 pm/MPa.
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