Title :
Transmission properties of 30.4 km v.a.d. fibre
Author :
Sudo, Shoichi ; Okazaki, Hisaaki ; Nakahara, Motohiro ; Horiguchi, Masaharu
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
A 30.4 km graded-index fibre has been fabricated by the vapour-phase axial deposition (v.a.d.) method. Optical-time-domain reflectometry was used to characterise the loss uniformity along the longitudinal direction of this fibre. Measured transmission loss and 6 dB bandwidth with good uniformity along this long fibre were 0.54 dB/km and 1200 MHzkm at the 1.3 ¿m wavelength, respectively.
Keywords :
optical fibres; vapour deposition; 1.3 micron wavelength; 30.4 km fibre; 6 dB bandwidth 1200 MHz km; graded index optical fibre; loss uniformity; optical time domain reflectometry; transmission loss 0.54 dB/km; transmission props; vapour phase axial deposition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800204
