Title :
Passive equalisation of four 2.5 Gbit/s WDM channels over 1000 km using notch filters
Author :
Hwang, S.-M. ; Huang, Steven He ; Shieh, William ; Willner, Alan E.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA
fDate :
3/28/1996 12:00:00 AM
Abstract :
The authors experimentally demonstrate passive equalisation of the non-uniform gain of cascaded EDFAs over a 7.4 nm wavelength range by periodically using notch filters along a 1000 km transmission link. The 1000 km equalised transmission was accomplished using a recirculating loop and a single intra-loop notch filter. The signal power differential among the four WDM channels is reduced from 19 to 4 dB
Keywords :
digital communication; equalisers; fibre lasers; interference filters; laser beam applications; notch filters; optical fibre communication; wavelength division multiplexing; 1000 km; 2.5 Gbit/s; Er-doped fibre amplifiers; WDM channels; cascaded EDFAs; nonuniform gain; notch filters; passive equalisation; recirculating loop;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960377
