Operation of Yb:YAG fiber-optic temperature sensor up to 1600 °C

Fiber-optic temperature sensors based on fluorescence decay in Yb doped yttrium aluminum garnet (Yb:YAG) and Yb,Tb:YAG have been tested. The sensitivity of the sensor is found to be better than 1%/°C for Yb:YAG between 1400 and 1600 °C and for Yb,Tb:YAG between 1250 and 1450 °C. The maximum temperat...

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Bibliographic Details
Published in:Sensors and actuators. A. Physical. 2002-09, Vol.100 (2), p.187-191
Main Authors: Kennedy, J.L., Djeu, N.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fiber-optic instruments
Fiber-optic sensor
Fluorescence decay
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Optical instruments, equipment and techniques
Physics
Single-crystal fiber
Temperature sensor
Thermal instruments, apparatus and techniques
Thermometry
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Summary:Fiber-optic temperature sensors based on fluorescence decay in Yb doped yttrium aluminum garnet (Yb:YAG) and Yb,Tb:YAG have been tested. The sensitivity of the sensor is found to be better than 1%/°C for Yb:YAG between 1400 and 1600 °C and for Yb,Tb:YAG between 1250 and 1450 °C. The maximum temperature of 1600 °C reached by the Yb:YAG sensor exceeds the previous record for this type of temperature sensor by more than 200 °C. These sensors are potentially operable up to 1900 °C.
ISSN:0924-4247
1873-3069
DOI:10.1016/S0924-4247(02)00065-1