Distributed optical fibre sensing of temperature using time-correlated two-photon excited fluorescence

Dalzell, Craig J. and Han, Thomas P. J. and Ruddock, Ivan S.; Santos, JL and Culshaw, B and LopezHiguera, JM and MacPherson, WN, eds. (2010) Distributed optical fibre sensing of temperature using time-correlated two-photon excited fluorescence. In: Fourth European Workshop on Optical Fibre Sensors, 2010-09-08 - 2010-09-10. (https://doi.org/10.1117/12.866366)

Abstract

Distributed temperature sensing based on time-correlated two-photon excited fluorescence (TPF) in doped optical fibre is described. Counter-propagating laser pulses generate a TPF flash at the position of their overlap which is scanned along the fibre by a variable relative time delay. The flash is transmitted to one end where it is detected and analysed to yield the temperature from its thermal dependence. With the fluorescence power being completely independent of excitation pulse duration and temporal profile, the sensor does not require ultrashort excitation pulses for operation. There is potential for high spatial resolution as the length of the sensed region depends only on pulse duration. Preliminary results are presented for praseodymium doped single-mode fibre.

ORCID iDs

Han, Thomas P. J. ORCID: https://orcid.org/0000-0002-2303-6861

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	30203
  Dates:	Date Event 2010 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	11 Apr 2011 11:14
  Last modified:	11 Nov 2024 16:28
  Related URLs:	Scopus publication
  URI:	https://strathprints.strath.ac.uk/id/eprint/30203