6533b828fe1ef96bd1287a18
RESEARCH PRODUCT
Raman investigation of the drawing effects on Ge-doped fibers
Sylvain GirardAziz BoukenterAntonino AlessiYoucef OuerdaneClaude MarcandellaMarco Cannassubject
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]Materials scienceOptical fiberOptical fiberGe-doped silicaDopingCondensed Matter PhysicsElectronic Optical and Magnetic Materialslaw.inventionStress (mechanics)Matrix (chemical analysis)symbols.namesakelawsilicaRaman spectroscopyMaterials ChemistryCeramics and CompositessymbolsFiberComposite materialRaman spectroscopyRamandescription
International audience; We have investigated the Raman activity of various germanosilicate fibers and their associated preforms. Our data indicate an enhancement in small rings' (3-member rings) concentration in the silica-based matrix of the fibers during the drawing process. The generation of such rings appears compatible with an increase of the sample density and fictive temperature. The data regarding the drawing effects on the fiber stress appear less clear, and it is possible to suggest that in some cases the drawing could lower the tensile stress. Finally we have also provided evidence that changing the drawing conditions within the usual range of application leads to no significant changes of the matrix structure as can be observed using Raman spectroscopy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-04 |