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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 8 — Apr. 15, 2012
  • pp: 1215–1222

Impact of Loss Variations on Double-Ended Distributed Temperature Sensors Based on Raman Anti-Stokes Signal Only

Marcelo A. Soto, Alessandro Signorini, Tiziano Nannipieri, Stefano Faralli, Gabriele Bolognini, and Fabrizio Di Pasquale

Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1215-1222 (2012)


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Abstract

We present a theoretical and experimental analysis of the sensing capabilities of Raman-based distributed temperature optical fiber sensor (RDTS) systems using only the anti-Stokes (AS) component in loop configuration. In particular, the effects of time- and wavelength-dependent losses on the sensor performance are thoroughly investigated under different experimental conditions. As expected from the developed theory, experimental results demonstrate that using the loop AS-light only approach in RDTS systems can correct the impact of local and wavelength-dependent losses on the final temperature measurements, with the simple use of an internal calibration fiber spool at a known temperature value. Signal-to-noise ratio and temperature resolution analyses of the AS-only RDTS point out an improved temperature resolution in comparison to standard RDTS systems in loop configuration.

© 2011 IEEE

Citation
Marcelo A. Soto, Alessandro Signorini, Tiziano Nannipieri, Stefano Faralli, Gabriele Bolognini, and Fabrizio Di Pasquale, "Impact of Loss Variations on Double-Ended Distributed Temperature Sensors Based on Raman Anti-Stokes Signal Only," J. Lightwave Technol. 30, 1215-1222 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-8-1215

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