Title :
Distributed Temperature Sensing in Polymer Optical Fiber by BOFDA
Author :
Minardo, Aldo ; Bernini, Romeo ; Zeni, Luigi
Author_Institution :
Dept. of Inf. Eng., Second Univ. of Naples, Aversa, Italy
Abstract :
Distributed temperature measurements in a perfluorinated graded-index polymer optical fiber (POF) with 50- μm core diameter are reported for the first time, to the best of our knowledge. Brillouin optical frequency-domain analysis is shown to be able to resolve spatially the temperature-dependent Brillouin frequency shift profile along a 20-m POF fiber sample, at a nominal spatial resolution of 4 m. The results indicate that POFs are potentially useful for distributed temperature measurements based on stimulated Brillouin scattering.
Keywords :
distributed sensors; fibre optic sensors; frequency-domain analysis; optical polymers; stimulated Brillouin scattering; temperature measurement; temperature sensors; BOFDA; Brillouin optical frequency-domain analysis; POF; distributed temperature measurement; distributed temperature sensing; perfluorinated graded-index polymer optical fiber; size 20 m; size 50 mum; stimulated Brillouin scattering; temperature-dependent Brillouin frequency shift profile; Frequency modulation; Laser excitation; Optical fiber sensors; Optical fibers; Probes; Scattering; Temperature measurement; Brillouin scattering; distributed sensor; fiber sensor; polymer optical fiber (POF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2294878
