Low-coherence interferometric measurements of optical losses in autoclave cured composite samples with embedded optical fibers

Raffaella Di Sante; Filippo Bastianini; Lorenzo Donati

doi:10.1117/12.2026382

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20 May 2013 Low-coherence interferometric measurements of optical losses in autoclave cured composite samples with embedded optical fibers

Raffaella Di Sante, Filippo Bastianini, Lorenzo Donati

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Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 87942V (2013) https://doi.org/10.1117/12.2026382
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland

Abstract

In this work a high-performance optical low-coherence reflectometer (OLCR) has been used to estimate the optical losses in optical fibers and fiber Bragg grating sensors embedded into CFRP material samples. An ASE tunable narrowband light source coupled to a Michelson interferometer allowed the high spatial resolution localization of both the concentrated and the distributed loss for different fiber coatings and type. In particular, acrylate- and polyimidecoated fibers and bend-insensitive fibers were tested. By using the OLCR it was possible to locate and identify the sources of optical loss introduced by the CFRP manufacturing process, therefore obtaining useful information on the efficiency of the embedding process.

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Raffaella Di Sante, Filippo Bastianini, and Lorenzo Donati "Low-coherence interferometric measurements of optical losses in autoclave cured composite samples with embedded optical fibers", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87942V (20 May 2013); https://doi.org/10.1117/12.2026382

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