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Proceedings Paper

Quasi-distributed measurement on femtosecond laser-induced scattering voids using incoherent OFDR and OTDR
Author(s): Sascha Liehr; Jörg Burgmeier
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Paper Abstract

We propose to use focused femtosecond laser pulses to create scattering damage in standard singlemode optical fibres as reference points for quasi-distributed sensing applications. Such sensor fibres are interrogated with incoherent optical frequency domain reflectometry (I-OFDR) technique and optical time domain reflectometry (OTDR). A performance comparison of both techniques with the clear advantage of the I-OFDR is presented as well as a quasi-distributed length change measurement application. Also dynamic measurement based on the I-OFDR technique is demonstrated on a femtosecond laser-induced sensor chain.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943N (20 May 2013); doi: 10.1117/12.2026780
Show Author Affiliations
Sascha Liehr, BAM Federal Institute for Materials Research and Testing (Germany)
Jörg Burgmeier, Fraunhofer Heinrich Hertz Institute (Germany)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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