Novel fiber optic temperature sensor with resolution of 0.5 ºC

Gonzalo Paez; Victor Lopez

doi:10.1117/12.543655

10 November 2003 Novel fiber optic temperature sensor with resolution of 0.5^οC

Gonzalo Paez, Victor Lopez

Proceedings Volume 5152, Infrared Spaceborne Remote Sensing XI; (2003) https://doi.org/10.1117/12.543655
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We study the feasibility of using decay-time measurements in order to develop a temperature sensor superior to the intensity-based one. We measured the fluorescence output of erbium-doped silica fiber segment upon pumping with 980-nm radiation. For low pumping powers (from 4 mW to 10 mW, in our case), the fluorescence power increases rapidly with pumping power. At an intermediate pumping power that depends on fiber dopant concentration and fiber geometry, the fluorescence power starts to saturate, approaching asymptotically the saturation value. We also report that the time constant of transition from excited level ⁴I_13/2 to ground level ⁴I_15/2 depends on the pumping power.

Citation Download Citation

Gonzalo Paez and Victor Lopez "Novel fiber optic temperature sensor with resolution of 0.5^οC", Proc. SPIE 5152, Infrared Spaceborne Remote Sensing XI, (10 November 2003); https://doi.org/10.1117/12.543655

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