Title :
Large graded-index preforms fabricated by high-rate VAD
Author :
Chida, K. ; Okazaki, Hiroshi ; Nakahara, Mizuki
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
A large preform for 220 km of fibre was fabricated with the vapour-phase axial deposition (VAD) method. The deposition rate for the core was 1.7 g/min. Optical fibre drawn from a part of the preform had optical attenuation of 0.58 dB/km and bandwidth 500 MHz km0.9 at a wavelength of 1.3 ¿m.
Keywords :
chemical vapour deposition; optical fibres; optical workshop techniques; bandwidth; deposition rate 1.7 g/min; graded-index preforms; high-rate VAD; optical attenuation; optical fibre preforms; vapour-phase axial deposition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820225
