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Proceedings Paper

A fast high-spatial-resolution Raman distributed temperature sensor
Author(s): Y. Chen; A. H. Hartog; R. J. Marsh; I. M. Hilton; M. R. Hadley; P. A. Ross
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Paper Abstract

Conventional high-spatial-resolution Raman distributed temperature sensing (DTS) systems are based on photoncounting techniques, which result in slow measurements over short sensing fibers. We describe an alternative approach that uses a high-power, short-pulse-width laser and provides fast measurements over fibers longer than 1 km. We demonstrate measurements with 1-s update times over fiber lengths greater than 1 km with better than 0.4-m spatial resolution. We introduce a figure of merit for DTS and we show a substantial improvement (x 100) over earlier results.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575M (2 June 2014); doi: 10.1117/12.2058109
Show Author Affiliations
Y. Chen, Schlumberger Fiber-Optic Technology Ctr. (United Kingdom)
A. H. Hartog, Schlumberger Fiber-Optic Technology Ctr. (United Kingdom)
R. J. Marsh, Schlumberger Fiber-Optic Technology Ctr. (United Kingdom)
I. M. Hilton, Schlumberger Fiber-Optic Technology Ctr. (United Kingdom)
M. R. Hadley, Schlumberger Fiber-Optic Technology Ctr. (United Kingdom)
P. A. Ross, Schlumberger Fiber-Optic Technology Ctr. (United Kingdom)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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