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Proceedings Paper

High performance and highly reliable Raman-based distributed temperature sensors based on correlation-coded OTDR and multimode graded-index fibers
Author(s): M. A. Soto; P. K. Sahu; S. Faralli; G. Sacchi; G. Bolognini; F. Di Pasquale; B. Nebendahl; C. Rueck
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Paper 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.

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66193B (2 July 2007); doi: 10.1117/12.738902
Show Author Affiliations
M. A. Soto, Scuola Superiore Sant'Anna (Italy)
P. K. Sahu, Indian Institute of Technology (India)
S. Faralli, Scuola Superiore Sant'Anna (Italy)
G. Sacchi, Photonic Networks National Lab. (Italy)
G. Bolognini, Scuola Superiore Sant'Anna (Italy)
F. Di Pasquale, Scuola Superiore Sant'Anna (Italy)
B. Nebendahl, Agilent Technologies Research and Development and Marketing GmbH & Co. KG (Germany)
C. Rueck, Agilent Technologies Research and Development and Marketing GmbH & Co. KG (Germany)


Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors

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