High performance and highly reliable Raman-based distributed temperature sensors based on correlation-coded OTDR and multimode graded-index fibers

M. A. Soto; P. K. Sahu; S. Faralli; G. Sacchi; G. Bolognini; F. Di Pasquale; B. Nebendahl; C. Rueck

doi:10.1117/12.738902

2 July 2007 High performance and highly reliable Raman-based distributed temperature sensors based on correlation-coded OTDR and multimode graded-index fibers

M. A. Soto, P. K. Sahu, S. Faralli, G. Sacchi, G. Bolognini, F. Di Pasquale, B. Nebendahl, C. Rueck

Author Affiliations +

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66193B (2007) https://doi.org/10.1117/12.738902
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

The performance of distributed temperature sensor systems based on spontaneous Raman scattering and coded OTDR are investigated. The evaluated DTS system, which is based on correlation coding, uses graded-index multimode fibers, operates over short-to-medium distances (up to 8 km) with high spatial and temperature resolutions (better than 1 m and 0.3 K at 4 km distance with 10 min measuring time) and high repeatability even throughout a wide temperature range.

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M. A. Soto, P. K. Sahu, S. Faralli, G. Sacchi, G. Bolognini, F. Di Pasquale, B. Nebendahl, and C. Rueck "High performance and highly reliable Raman-based distributed temperature sensors based on correlation-coded OTDR and multimode graded-index fibers", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66193B (2 July 2007); https://doi.org/10.1117/12.738902

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