High-temperature fiber-optic thermometry

摘要

Fiber optic temperature sensors based on fluorescence decay and using a monolithic crystalline construction arc described. Results obtained with YAG probes terminating in Er:YAG and Yb:YAG tips are reported. To date temperature as high as 1,900 K has been reached with the Yb:YAG sensor. Issues to be addressed in the future development of this type of temperature sensor are discussed.