Title :
Ultralow-loss 220 km-long single-mode-fibre cable link in 1.5 μm wavelength region
Author :
Kitayama, K. ; Uesugi, Naohisa ; Seikai, S. ; Kawata, O. ; Ishihara, Koichi
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
Ultralow-loss single-mode-fibre cables specially designed for the 1.5 μm region were fabricated. The fibre parameters are a mode-field radius of 6 μm and an effective cutoff wavelength of 1.4 μm. The average loss is 0.19 dB/km at 1.55 μm. The total loss of a 216 km-long cable link consisting of 2 km-long fibres with 107 splices was 46.3 dB. The cables also show a good loss stability at 1.55 μm in long-term use.
Keywords :
losses; optical fibres; optical links; silicon compounds; 220 km-long single-mode-fibre cable link; average loss; cutoff wavelength; fibre parameters; fused SiO2 fibre; long haul trunk line; long-term use; loss stability; mode-field radius; overall loss 46.3 dB; splices; total loss; ultralow-loss optical fibre links; wavelength 1.5 micron;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840527
