Spectral characteristics and effects of heat treatment on intrinsic Nd-doped fiber thermometer probes
- 1 January 1998
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 69 (1) , 139-145
- https://doi.org/10.1063/1.1148489
Abstract
A detailed investigation of the practical spectroscopic features and the effect of prolonged exposure to elevated temperatures of an intrinsic Nd:doped fiber optic thermometer probe using the fluorescence decay time technique has been carried out. Results have shown the optimum length for the doped fiber and a maximum operating temperature of 750 °C, beyond which a range of high-temperature “annealing” effects are seen. These are discussed in light of the operation of the thermometers over the range from to 750 °C and potentially above.
Keywords
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