B-OTDR and OFDR distributed optical fiber strain sensing for sinkhole detection

Sylvie Delepine-Lesoille; Vincent Lanticq; Pierre Magnien; Luc Dieleman; Gratien Vinceslas; Emmanuel Bourgeois

doi:10.1117/12.786125

16 May 2008 B-OTDR and OFDR distributed optical fiber strain sensing for sinkhole detection

Sylvie Delepine-Lesoille, Vincent Lanticq, Pierre Magnien, Luc Dieleman, Gratien Vinceslas, Emmanuel Bourgeois

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70044N (2008) https://doi.org/10.1117/12.786125
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

Optical fiber sensor is evaluated for sinkhole detection under railway tunnels. Tests performed on a decametric structure equipped with embedded 110 m-cable interrogated by Brillouin-OTDR and OFDR showed great performances in accordance with finite-element calculations.

Citation Download Citation

Sylvie Delepine-Lesoille, Vincent Lanticq, Pierre Magnien, Luc Dieleman, Gratien Vinceslas, and Emmanuel Bourgeois "B-OTDR and OFDR distributed optical fiber strain sensing for sinkhole detection", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70044N (16 May 2008); https://doi.org/10.1117/12.786125

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