Quasi-distributed measurement on femtosecond laser-induced scattering voids using incoherent OFDR and OTDR

Sascha Liehr; Jörg Burgmeier

doi:10.1117/12.2026780

20 May 2013 Quasi-distributed measurement on femtosecond laser-induced scattering voids using incoherent OFDR and OTDR

Sascha Liehr, Jörg Burgmeier

Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 87943N (2013) https://doi.org/10.1117/12.2026780
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland

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.

Citation Download Citation

Sascha Liehr and Jörg Burgmeier "Quasi-distributed measurement on femtosecond laser-induced scattering voids using incoherent OFDR and OTDR", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943N (20 May 2013); https://doi.org/10.1117/12.2026780

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