Performance predictions of a fiber-optic temperature sensor

Gonzalo Paez; Marija Strojnik

doi:10.1117/12.453715

18 December 2002 Performance predictions of a fiber-optic temperature sensor

Gonzalo Paez, Marija Strojnik

Proceedings Volume 4818, Infrared Spaceborne Remote Sensing X; (2002) https://doi.org/10.1117/12.453715
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

We analyze and predict the performance of a fiber optic temperature sensor from the measured fluorescence spectrum in order to optimize its design. We apply this analysis to the erbium-doped silica fiber employing the power ratio technique. We develop the expressions for the signal-to-noise ratio in the band to optimize the sensor performance in each spectral channel. We improve the signal-to-noise ratio by a factor of five for each channel, compared to earlier results. We evaluate the analytical expression for the sensor sensitivity and predict it to be about 0.02 K^-1for the temperature interval from room temperature to above 200 C, increasing from 0.01 K^-1at the edges of the interval to 0.03 K^-1at the center, at 100-130 C. The sensitivity again increases at temperatures higher than 300 C, delineating its useful temperature intervals.

Citation Download Citation

Gonzalo Paez and Marija Strojnik "Performance predictions of a fiber-optic temperature sensor", Proc. SPIE 4818, Infrared Spaceborne Remote Sensing X, (18 December 2002); https://doi.org/10.1117/12.453715

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