Influence of the drawing process on the defect generation in multistep-index germanium-doped optical fibers

Marco Cannas, Roberto Boscaino, Origlio, Girard, Boukenter, Ouerdane

Risultato della ricerca: Articlepeer review

15 Citazioni (Scopus)

Abstract

Variation of germanium lone pair center (GLPC) concentration in germanosilicate multistep-index optical fibers and preforms was studied using confocal microscopy luminescence technique. The experimental results provide evidence that in the central core region ([Ge] similar or equal to 11 wt. %) of our specific canonical samples the ratio [GLPC]/[Ge] is five times larger in fiber than in preforms. The relative influence of the glass composition and of the drawing process on the generation efficiency of the GLPC defects that drive the glass photosensitivity is discussed. The radial distribution of these defects suggests a possible enhancement of the defect creation related to the internal stress of the fiber core.
Lingua originaleEnglish
pagine (da-a)2282-2284
Numero di pagine3
RivistaOptics Letters
Volume2009
Stato di pubblicazionePublished - 2009

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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