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Proceedings Paper

Fiber-optic thermometer based on thermal radiation from rare-earth doped SiO2
Author(s): T. Katsumata; T. Iguchi; H. Aizawa; S. Komuro; T. Morikawa
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Paper Abstract

Thermal radiation from Y doped and Er doped SiO2 fibers were studied for the fiber-optic thermometer application in high temperature. Thermal radiation similar to the black body radiation was observed in visible light region from the SiO2 fibers doped with Y. Visible light radiation peaks due to f-f transitions of rare-earth ions were clearly observed in the Er doped SiO2 fibers. Intensity ratio of thermal radiation at different wavelength is suitable for the highly sensitive temperature measurement. The hybridization of fluorescent thermometry and thermal radiation thermometry is suggested to extend the temperature range and increase the temperature resolution.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623427
Show Author Affiliations
T. Katsumata, Toyo Univ. (Japan)
T. Iguchi, Toyo Univ. (Japan)
H. Aizawa, Toyo Univ. (Japan)
S. Komuro, Toyo Univ. (Japan)
T. Morikawa, Toyo Univ. (Japan)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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