Title :
OH-ion reduction in v.a.d. optical fibres
Author :
Edahiro, T. ; Kawachi, M. ; Sudo, Shunsuke ; Takata, Hiroto
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
The dehydration effect of SOCl2 on v.a.d. optical-fibre preforms has been investigated. The OH content of the graded-index fibres obtained was reduced to the level of 0.05 p.p.m. (the lowest value was 0.03 p.p.m.), resulting in the minimum loss of 0.60 dB/km at 1.3 ¿m.
Keywords :
optical fibres; vapour deposition; OH content; SOCl2; dehydration effect; graded index fibre; heat treatment; optical fibres; vapour phase axial deposition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790348
