Measurement of Pump-Induced Temperature Increase in Doped Fibers Using Whispering-Gallery Modes

Author

Rivera-Perez, E. ; Villegas, Irma L. ; Diez, A. ; Andres, Miguel V. ; Cruz, Jose L. ; Rodriguez-Cobos, A.

Author_Institution

Dept. de Fis. Aplic. y Electromagnetismo-ICMUV, Univ. de Valencia, Burjassot, Spain

Volume

25

Issue

24

fYear

2013

fDate

Dec.15, 2013

Firstpage

2498

Lastpage

2500

Abstract

Accurate measurement of the pump-induced temperature increase in rare earth doped optical fibers has been carried out based on the excitation of whispering-gallery modes resonances of the doped fiber itself. Variations of fiber temperature are found from the wavelength shift of the resonances. The narrow bandwidth of the resonances (few hundredths of a picometer) provides a temperature resolution better than 10^-2°C at room temperature. The technique is all-optical and it does not require processing of the doped fiber.

Keywords

optical fibre testing; optical pumping; rare earth metals; temperature measurement; whispering gallery modes; fiber temperature; pump-induced temperature measurement; rare earth doped optical fibers; temperature 293 K to 298 K; temperature resolution; wavelength shift; whispering-gallery mode resonance; Fiber lasers; Optical fiber amplifiers; Optical fiber polarization; Optical fiber sensors; Temperature measurement; Temperature sensors; Optical resonators; doped fibers; fiber lasers and amplifiers; fiber optics; thermal heating;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2288865

Filename

6657684