Radiometric analysis of a fiber optic temperature sensor

Jesus Castrellon; Gonzalo Paez; Marija Strojnik

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Radiometric analysis of a fiber optic temperature sensor

机译：Radiometric analysis of a fiber optic temperature sensor

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We analyze the performance of a fiber optic temperature sensor in terms of the standard radiometric figures of merit to optimize its design from the measured fluorescence spectrum. We apply this analysis to an erbium-doped silica fiber employing the intensity ratio technique. We develop the expressions for the SNR, the responsivity in the band, and the noise-equivalent power to predict and optimize the performance of each spectral channel, considering a number of spectral subbands. Incorporating narrow bands for each transition, we improve the SNR by a factor of 5 for each channel. We evaluate and predict the sensitivity of the sensor, incorporating the intensity ratio, to be around 0.025 K~(-1). The temperature resolution of this highly linear sensor is estimated at a value of about 0.1 K for the temperature interval from below room temperature to above 500℃.

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来源
《Optical Engineering》 |2002年第6期|1255-1261|共7页
作者
Jesus Castrellon; Gonzalo Paez; Marija Strojnik;
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作者单位

Centro de Investigaciones en Optica Apdo Postal 1-948 37000 Leon, Gto., Mexico;

Department of Applied Physics and Advanced Technologies (FATA), National Autonomous University of Mexico, A.P. 1-1010, Queretaro, Qro. 67000, Mexico;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
关键词
radiometric analysis; intensity ratio; temperature sensor; erbium-doped silica; fiber optic sensor; emission fluorescence;

Radiometric analysis of a fiber optic temperature sensor

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