Raman investigation of the drawing effects on Ge-doped fibers

Marco Cannas, Antonino Alessi, Girard, Boukenter, Ouerdane, Marcandella, Alessi

Risultato della ricerca: Articlepeer review

8 Citazioni (Scopus)

Abstract

We have investigated the Raman activity of various germanosilicate fibers and their associated preforms. Ourdata indicate an enhancement in small rings' (3-member rings) concentration in the silica-based matrix of thefibers during the drawing process. The generation of such rings appears compatible with an increase of thesample density and fictive temperature. The data regarding the drawing effects on the fiber stress appear lessclear, and it is possible to suggest that in some cases the drawing could lower the tensile stress. Finally wehave also provided evidence that changing the drawing conditions within the usual range of application leadsto no significant changes of the matrix structure as can be observed using Raman spectroscopy.
Lingua originaleEnglish
pagine (da-a)24-27
Numero di pagine4
RivistaJournal of Non-Crystalline Solids
Volume357
Stato di pubblicazionePublished - 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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