Fiber-optic thermometer based on thermal radiation from rare-earth doped SiO2

T. Katsumata; T. Iguchi; H. Aizawa; S. Komuro; T. Morikawa

doi:10.1117/12.623427

23 May 2005 Fiber-optic thermometer based on thermal radiation from rare-earth doped SiO₂

T. Katsumata, T. Iguchi, H. Aizawa, S. Komuro, T. Morikawa

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623427
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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.

Citation Download Citation

T. Katsumata, T. Iguchi, H. Aizawa, S. Komuro, and T. Morikawa "Fiber-optic thermometer based on thermal radiation from rare-earth doped SiO₂", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623427

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