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Multi-point high temperature optical fiber sensor
Author(s): Erik P. Schartner; Linh V. Nguyen; Dale Otten; Zheng Yu; David G. Lancaster; Heike Ebendorff-Heidepriem; Stephen C. Warren-Smith
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Paper Abstract

The ability to perform spatially resolved measurement of extreme temperatures, the order of 1000°C and above, would yield enormous benefit to many heavy industrial processes. While optical fibers can provide spatial information along their length through distributed and multi-point sensing techniques, operation at such temperatures is an area of ongoing research and development. A challenge is that conventional optical fibers, fabricated with a chemically doped core, suffer dopant diffusion at these high temperatures, ultimately limiting their operating lifespan. We can overcome this limitation by using specialty pure silica glass fibers, such as microstructured optical fibers. In this work we demonstrate the ability to use such fibers in a significantly multiplexed configuration with twenty fiber Bragg grating sensing elements written via femtosecond laser ablation.

Paper Details

Date Published: 30 December 2019
PDF: 2 pages
Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 1120038 (30 December 2019); doi: 10.1117/12.2541105
Show Author Affiliations
Erik P. Schartner, The Univ. of Adelaide (Australia)
ARC Ctr. of Excellence for Nanoscale BioPhotonics (Australia)
Linh V. Nguyen, The Univ. of Adelaide (Australia)
Dale Otten, Univ. of South Australia (Australia)
Zheng Yu, The Univ. of Adelaide (Australia)
David G. Lancaster, Univ. of South Australia (Australia)
Heike Ebendorff-Heidepriem, The Univ. of Adelaide (Australia)
Stephen C. Warren-Smith, The Univ. of Adelaide (Australia)
ARC Ctr. of Excellence for Nanoscale BioPhotonics (Australia)


Published in SPIE Proceedings Vol. 11200:
AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019
Arnan Mitchell; Halina Rubinsztein-Dunlop, Editor(s)

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