Distributed optical fiber temperature sensor using only anti-Stokes Raman scattering light in a loop configuration

In this paper we demonstrate distributed Raman temperature sensing (RDTS) in a loop scheme employing anti-Stokes light intensity only. Using a single-channel receiver and anti-Stokes traces measured in loop configuration, we implement RDTS with inherent compensation of fiber wavelength-dependent losses, as well as local external perturbations. Experimental results show a signal-to-noise ratio enhancement with respect to a standard RDTS in loop configuration, providing a robust and reliable high-performance sensor for long sensing ranges.


Published in:
Proceedings of SPIE - The International Society for Optical Engineering, 7753
Presented at:
21st International Conference on Optical Fiber Sensors, Ottawa, Canada, 15 May 2011
Year:
2011
Laboratories:




 Record created 2012-11-01, last modified 2018-01-28

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