Distributed optical fibre audible frequency sensor

Ali Masoudi; Mohammad Belal; Trevor P. Newson

doi:10.1117/12.2058484

2 June 2014 Distributed optical fibre audible frequency sensor

Ali Masoudi, Mohammad Belal, Trevor P. Newson

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91573T (2014) https://doi.org/10.1117/12.2058484
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

A distributed optical fibre sensor is demonstrated which is capable of quantifying acoustic and dynamic strain disturbances along a 1km sensing fibre. A phase-OTDR technique is used to detect the dynamic perturbations using the phase-difference between the backscattered light from two separate sections of the sensing fibre. The demonstrated sensor detects multiple dynamic perturbations simultaneously within a frequency range of 200Hz to 5000Hz with a frequency resolution of 10Hz and a spatial resolution of 1m.

Citation Download Citation

Ali Masoudi, Mohammad Belal, and Trevor P. Newson "Distributed optical fibre audible frequency sensor ", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91573T (2 June 2014); https://doi.org/10.1117/12.2058484

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