Title :
100 km single mode VAD fibres
Author :
Kawachi, M. ; Tomaru, S. ; Yasu, M. ; Horiguchi, M. ; Sakaguchi, S. ; Kimura, T.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
100 km single mode fibres with low loss values of 0.3 dB/km at 1.55 ¿m and 0.5 dB/km at 1.3 ¿m have been made by the VAD method. Swept frequency 6 dB down bandwidths at the two wavelengths were 40 MHz for 100 km length and 800 MHz for 50 km length, respectively.
Keywords :
chemical vapour deposition; optical fibres; optical workshop techniques; low loss values; single mode optical fibres; swept frequency 6 dB down bandwidth; vapour phase axial deposition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810041
