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

被引：24

作者：

Origlio, G. ^{[1
,2
]}

Cannas, M. ^{[2
]}

Girard, S. ^{[3
]}

Boscaino, R. ^{[2
]}

Boukenter, A. ^{[1
]}

Ouerdane, Y. ^{[1
]}

机构：

[1] Univ St Etienne, CNRS, UMR 5516, Lab H Curien, F-42000 St Etienne, France

[2] Univ Palermo, Dipartimento Sci Fis & Astron, I-90123 Palermo, Italy

[3] CEA, DAM, DIF, F-91297 Arpajon, France

来源：

OPTICS LETTERS | 2009年 / 34卷 / 15期

关键词：

BRAGG GRATINGS; SILICA; LUMINESCENCE; IRRADIATION; PREFORMS; GLASSES;

D O I：

10.1364/OL.34.002282

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2009 Optical Society of America

引用

页码：2282 / 2284

页数：3

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