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Transversal Load Sensing With Fiber Bragg Gratings in Microstructured Optical Fibers

Publication date 2009
B-Phot Authors Thomas Geernaert, Francis Berghmans, Hugo Thienpont
DOI 10.1109/LPT.2008.2007915
Citation
T. Geernaert et al., “Transversal Load Sensing With Fiber Bragg Gratings in Microstructured Optical Fibers,” IEEE Photonics Technol. Lett., vol. 21, no. 1–4, pp. 6–8, 2009.
Abstract 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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