6533b827fe1ef96bd12865a1
RESEARCH PRODUCT
Paramagnetic germanium-related centers induced by energetic radiation in optical fibers and preforms
Youcef OuerdaneSylvain GirardMarco CannasAziz BoukenterG. OriglioG. OriglioRoberto Boscainosubject
Optical fiberAbsorption spectroscopyAnalytical chemistryOptical spectroscopychemistry.chemical_elementGermaniumPACS: 42.81.-I 61.72.uf 61.80.Cb 76.30.Mi 78.40.Pglaw.inventionAbsorptionParamagnetismlawElectron spin resonanceMaterials ChemistryOptical fibersIrradiationElectron paramagnetic resonance[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]ResonanceSilicaSilica optical fiber defects Geermanium dopingCondensed Matter PhysicsCrystallographic defectElectronic Optical and Magnetic MaterialschemistryCeramics and CompositesDefectsdescription
International audience; We investigated the creation processes of Ge-related paramagnetic point defects in silica fibers and preforms, doped with different amounts of germanium, and X-ray irradiated at several radiation doses. Different paramagnetic defect species, like GeE0, Ge(1) and Ge(2), were revealed by electron paramagnetic resonance measurements and their concentration was studied as a function of the irradiation dose. The comparison with the optical absorption spectra points out the main role of Ge(1) on the optical transmission loss of fibers in the UV region.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-10 |