Optical frequency domain reflectometry: principles and applications in fiber optic sensing

Stephen T. Kreger; Nur Aida Abdul Rahim; Naman Garg; Sandra M. Klute; Daniel R. Metrey; Noah Beaty; James W. Jeans; Robert Gamber

doi:10.1117/12.2229057

12 May 2016 Optical frequency domain reflectometry: principles and applications in fiber optic sensing

Stephen T. Kreger, Nur Aida Abdul Rahim, Naman Garg, Sandra M. Klute, Daniel R. Metrey, Noah Beaty, James W. Jeans, Robert Gamber

Author Affiliations +

Proceedings Volume 9852, Fiber Optic Sensors and Applications XIII; 98520T (2016) https://doi.org/10.1117/12.2229057
Event: SPIE Commercial + Scientific Sensing and Imaging, 2016, Baltimore, MD, United States

Abstract

Optical Frequency Domain Reflectometry (OFDR) is the basis of an emerging high-definition distributed fiber optic sensing (HD-FOS) technique that provides an unprecedented combination of resolution and sensitivity. OFDR employs swept laser interferometry to produce strain or temperature vs. sensor length with fiber Bragg gratings (FBGs) or Rayleigh scatter as the source signal. We look at the influence of HD-FOS on design and test of new, lighter weight, stronger and more fuel efficient vehicles. Examples include defect detection, model verification and structural health monitoring of composites, and temperature distribution monitoring of battery packs and inverters in hybrid and electric powertrains.

Citation Download Citation

Stephen T. Kreger, Nur Aida Abdul Rahim, Naman Garg, Sandra M. Klute, Daniel R. Metrey, Noah Beaty, James W. Jeans, and Robert Gamber "Optical frequency domain reflectometry: principles and applications in fiber optic sensing", Proc. SPIE 9852, Fiber Optic Sensors and Applications XIII, 98520T (12 May 2016); https://doi.org/10.1117/12.2229057

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