Title :
Limitation of transmission distance and capacity due to polarisation dispersion in a lightwave system
fDate :
3/17/1988 12:00:00 AM
Abstract :
The length dependence of group delay differences between orthogonally polarised modes has been investigated experimentally for real single-mode fibres ranging from 0.1 km to 100 km. The mean group delay difference is a constant value of 0.67 ps, over a length of more than 1 km. The mode coupling coefficient of random mode mixing which causes pulse broadening has been estimated to be 6.3×10-3 m-1. A light pulse will broaden by 17 ps after traversing a 100 km-long fibre. This may restrict single-mode fibre systems to a bit rate of 10 G b/s for lengths over 150 km
Keywords :
channel capacity; digital communication systems; light polarisation; optical dispersion; optical fibres; optical links; 0.1 to 150 km; 10 Gbit/s; capacity limitation; group delay differences; length dependence; lightwave system; mode coupling coefficient; optical fibre links; orthogonally polarised modes; polarisation dispersion; pulse broadening; random mode mixing; single-mode fibres; transmission distance limitation;
Journal_Title :
Electronics Letters
