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. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Distributed optical fiber temperature sensor using only anti-Stokes Raman scattering light in a loop configuration
FARALLI, STEFANO;DI PASQUALE, Fabrizio Cesare Filippo
2011-01-01
Abstract
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. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).File in questo prodotto:
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