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Proceedings Paper

Practical sensitive fluorescence sensing with microstructured fibres
Author(s): E. P. Schartner; R. T. White; S. C, Warren-Smith; T. M. Monro
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Paper Abstract

We demonstrate a new detection limit for fluorescent species in small-core glass microstructured optical fibres. Two detection schemes are explored: forward detection by an optical spectrum analyser; and backward detection by a photodiode. In the second scheme, characterisation of the fluorescence signal during fibre filling allows us to accurately separate quantum-dot fluorescence from intrinsic glass fluorescence. The spectral overlap of these two fluorescence sources is the principal limit to the detection sensitivity. We demonstrate a detection limit of ~200 pM.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75035X (5 October 2009); doi: 10.1117/12.835350
Show Author Affiliations
E. P. Schartner, The Univ. of Adelaide (Australia)
R. T. White, The Univ. of Adelaide (Australia)
S. C, Warren-Smith, The Univ. of Adelaide (Australia)
T. M. Monro, The Univ. of Adelaide (Australia)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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