Distributed transverse load sensing in polarisation maintaining fibres using Rayleigh backscatter

Robert R. J. Maier; William N. MacPherson; James S. Barton

doi:10.1117/12.835131

5 October 2009 Distributed transverse load sensing in polarisation maintaining fibres using Rayleigh backscatter

Robert R. J. Maier, William N. MacPherson, James S. Barton

Author Affiliations +

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75030C (2009) https://doi.org/10.1117/12.835131
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

We demonstrate for the first time true distributed sensing of scale and location of transverse loading along an extended length of polarisation maintaining [PM] fibre with high spatial resolution using Optical Frequency Domain Reflectometry [OFDR]. Transverse loading of PM fibres induces local and differential changes in refractive index in slow and fast axis, depending on scale and direction of load relative to the axes. The change in refractive index is detected by monitoring the change in local periodicity of the statically distributed Rayleigh scatter for each PM fibre axis simultaneously using OFDR.

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Robert R. J. Maier, William N. MacPherson, and James S. Barton "Distributed transverse load sensing in polarisation maintaining fibres using Rayleigh backscatter", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75030C (5 October 2009); https://doi.org/10.1117/12.835131

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