Distributed crystal fibre sensing for extreme environments

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 crystal fibre sensing for extreme environments. In: Fourth European Workshop on Optical Fibre Sensors, 2010-09-08 - 2010-09-10. (https://doi.org/10.1117/12.866363)

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Abstract

Distributed sensing of temperature can be achieved by using time-correlated two-photon excited fluorescence (TPF). To assess the extension of this technique to crystal fibres for high temperature applications, various aspects are considered including the two-photon absorption cross-section (delta), dopant density and the geometry of single crystal fibres. By comparing the fluorescence yield for two-photon excitation with that for single-photon excitation of the same transition, d for ruby was measured over the 0.8-1.2 mu m range with maximum room temperature values of 5.9 x 10(-3) GM for e-polarisation and 4.6 x 10(-3) GM for o-polarisation at 840 nm. It is shown that values of this magnitude are adequate for a practical TPF based crystal fibre sensor to be realised.

ORCID iDs

Dalzell, Craig J., Han, Thomas P. J. ORCID logoORCID: https://orcid.org/0000-0002-2303-6861 and Ruddock, Ivan S.; Santos, JL, Culshaw, B, LopezHiguera, JM and MacPherson, WN
  • Item type:Conference or Workshop Item(Paper)
    ID code:30204
    Dates:
    Date
    Event
    2010
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:11 Apr 2011 11:08
    Last modified:11 Nov 2024 16:28
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/30204
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