Title :
Energetic radiation influence on temperature dependency of Brillouin frequency in optical fibers
Author :
Phéron, X. ; Ouerdane, Y. ; Delepine-Lesoille, S. ; Boukenter, A. ; Bertrand, J.
Author_Institution :
French Nat. Radioactive Waste Manage. Agency, Chatenay-Malabry, France
Abstract :
We present a post mortem study of the influence of energetic radiation on optical fiber Brillouin sensors, both Brillouin spectrum and its temperature dependency in two different fibers, a photosensitive optical fiber and a SMF28. The target application is nuclear wastes repository monitoring where optical fiber Brillouin sensors might be exposed to energetic radiation. UV exposure induced optical losses, Brillouin frequency shifts up to 28MHz and even a variation of the temperature dependency. The photosensitive optical fiber resulted more sensitive than SMF28™.
Keywords :
Brillouin spectra; fibre optic sensors; particle detectors; radiation monitoring; radioactive waste repositories; ultraviolet radiation effects; Brillouin frequency shift; Brillouin spectrum temperature dependency; SMF28 optical fiber; UV exposure induced optical losses; energetic radiation effects; energetic radiation exposure; nuclear waste repository monitoring; optical fiber Brillouin sensors; photosensitive optical fiber; Optical fiber cables; Optical fiber sensors; Optical fibers; Scattering; Temperature measurement; Temperature sensors;
Conference_Titel :
Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2011 2nd International Conference on
Conference_Location :
Ghent
Print_ISBN :
978-1-4577-0925-8
DOI :
10.1109/ANIMMA.2011.6172954
