DocumentCode
991291
Title
Loss increase in deuterium-doped VAD fibres with heat treatment
Author
Nakahara, Mizuki ; Ohmori, Yutaka ; Itoh, Hayato
Author_Institution
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Volume
20
Issue
8
fYear
1984
Firstpage
327
Lastpage
329
Abstract
The origin of the increase in the intensity of OH bands with heat treatment has been investigated using deuterium-containing VAD fibres. Remarkable loss increases only in the absorption peaks due to the OH ions have been observed after 200¿500°C heat treatment applied to three kinds of fibre: drawn from a preform prepared by a D2-O2 flame, and OD-doped in the core and in the cladding. It was confirmed that the origin of the hydrogen causing the loss increase is not in the synthesised glass materials.
Keywords
deuterium compounds; germanate glasses; heat treatment; losses; optical fibres; silicon compounds; 200°-500°C; D2-O2 flame preparation; H diffusion; OD cladding doping; OD core doping; OH bands intensity increase; OH ion absorption peak; OH loss increase; SiO2-GeO2-OD glass fibres; germanate glasses; heat treatment; loss increases; optical fibres; preform drawn fibre; vapour phase axial deposition;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19840222
Filename
4248654
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