Title :
Dispersion compensation in 450 km transmission system employing standard fibre
Author :
Ellis, A.D. ; Pycock, S.J. ; Cleland, D.A. ; Sturrock, C.H.F.
Author_Institution :
BT Labs., Ipswich, UK
fDate :
5/7/1992 12:00:00 AM
Abstract :
It is demonstrated that by directly prechirping an externally modulated DFB laser at the clock frequency, transmission of a 5 Gbit/s NRZ signal beyond the dispersion limit of 300 km for step index fibre is possible. In particular, operation of the system over 450 km of fibre, representing a total dispersion of 7.2 ns/nm, and the use of time resolved chirp measurements for the system optimisation, are reported.
Keywords :
optical communication equipment; optical dispersion; optical fibres; optical links; semiconductor junction lasers; 450 km; 5 Gbit/s; NRZ signal; clock frequency; dispersion limit; externally modulated DFB laser; prechirping; standard fibre; step index fibre; system optimisation; time resolved chirp measurements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920605
