Title :
Temperature measurement using Er doped SiO/sub 2/ glass
Author :
Aizawa, H. ; Takei, K. ; Katsumata, T. ; Komuro, S. ; Morikawa, T. ; Ogawa, S. ; Toba, E.
Author_Institution :
Sensor Photonics Res. Center, Toyo Univ., Saitama, Japan
Abstract :
The temperature dependence of PL lifetime from an Er doped SiO/sub 2/ sensor with various concentrations have been evaluated in the temperature range 0/spl deg/C to 200/spl deg/C. An Er doped SiO/sub 2/ sensor with Er concentration above 5000 ppm and Al/Er=15 is considered to be suitable for the fiber-optic thermometer. The PL lifetimes of the Er doped SiO/sub 2/ sensor decrease from 10 ms to 8.6 ms at temperatures from 0/spl deg/C to 200/spl deg/C. An Er doped SiO/sub 2/ sensor is considered to be potentially useful for a fiber-optic fluorescence thermometer.
Keywords :
erbium; fibre optic sensors; fluorescence; optical glass; photoluminescence; radiative lifetimes; silicon compounds; spectral methods of temperature measurement; thermometers; 0 to 200 C; 8.6 ms; Er doped SiO/sub 2/ glass; Er doped SiO/sub 2/ sensor; Er doped fiber; SiO/sub 2/:Er,Al; fiber-optic fluorescence thermometer; photoluminescence lifetime; rare-earth metals; temperature dependence; temperature measurement;
Conference_Titel :
SICE 2004 Annual Conference
Conference_Location :
Sapporo
Print_ISBN :
4-907764-22-7
