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RESEARCH PRODUCT

UV-Photoinduced Defects In Ge-Doped Optical Fibers

K. MedjahdiMarco CannasAziz BoukenterY. OuerdaneFabrizio Messina

subject

Condensed Matter - Materials ScienceMaterials scienceOptical fiberbusiness.industryDopingMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciencesDisordered Systems and Neural Networks (cond-mat.dis-nn)RadiationCondensed Matter - Disordered Systems and Neural NetworksFluenceCrystallographic defectoptical fibers radiation effects radiation-induced attenuationlaw.inventionlawOptoelectronicsIrradiationAbsorption (electromagnetic radiation)businessElectron paramagnetic resonance

description

We investigated the effect of continuous-wave (cw) UV laser radiation on single-mode Ge-doped H2- loaded optical fibers. An innovative technique was developed to measure the optical absorption (OA) induced in the samples by irradiation, and to study its dependence from laser fluence. The combined use of the electron spin resonance (ESR) technique allowed the structural identification of several radiation-induced point defects, among which the Ge(1) (GeO4 -) is found to be responsible of induced OA in the investigated spectral region.

yearjournalcountryeditionlanguage
2005-01-01
10.1109/wfopc.2005.1462146http://arxiv.org/abs/cond-mat/0507405