Phase-shift based BOTDA measurements tolerant to non-local effects

Javier Urricelqui; Mikel Sagues; Alayn Loayssa

doi:10.1117/12.2026094

20 May 2013 Phase-shift based BOTDA measurements tolerant to non-local effects

Javier Urricelqui, Mikel Sagues, Alayn Loayssa

Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 87943G (2013) https://doi.org/10.1117/12.2026094
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland

Abstract

We demonstrate a BOTDA sensor based on the use of the Brillouin phase-shift that performs measurements tolerant to non-local effects. This technique raises opportunities to increase the distance covered by these sensors and the maximum optical power of the probe wave injected to the fiber. As a result, the system has the potential to increase the SNR achieved at the last meters of the fiber. Proof-of-concept experiments demonstrate unaltered measurements of the phase-shift spectrum in a 20Km long fiber for large frequency-dependent distortions of the pump pulse.

Citation Download Citation

Javier Urricelqui, Mikel Sagues, and Alayn Loayssa "Phase-shift based BOTDA measurements tolerant to non-local effects", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943G (20 May 2013); https://doi.org/10.1117/12.2026094

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