Bragg gratings in carbon coated optical fibers and their potential sensor applications in harsh environment

Yaowen Li; David J. Kudelko; Adam S. Hokansson; Debra A. Simoff; Andrei A. Stolov; Joanna Ng; Joel Mann

doi:10.1117/12.2059676

2 June 2014 Bragg gratings in carbon coated optical fibers and their potential sensor applications in harsh environment

Yaowen Li, David J. Kudelko, Adam S. Hokansson, Debra A. Simoff, Andrei A. Stolov, Joanna Ng, Joel Mann

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91573X (2014) https://doi.org/10.1117/12.2059676
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We have demonstrated that fiber Bragg gratings can be written through the carbon layer of carbon-coated optical fibers having different coating thicknesses. Specifically, grating index modulation amplitudes of ~2.5x10^-5 and 0.52x10^-5 were obtained in optical fibers having carbon layers 29 nm and 56 nm thick, respectively, without any extra photosensitization of the fibers. Subsequent experimental results showed that the carbon coatings in the grating areas didn’t change their hermetic properties. Finally, we describe the advantages of these gratings and their potential applications in fiber optic sensing.

Citation Download Citation

Yaowen Li, David J. Kudelko, Adam S. Hokansson, Debra A. Simoff, Andrei A. Stolov, Joanna Ng, and Joel Mann "Bragg gratings in carbon coated optical fibers and their potential sensor applications in harsh environment", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91573X (2 June 2014); https://doi.org/10.1117/12.2059676

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