H. Taga et al., IM-DD 4-CHANNEL WDM TRANSMISSION EXPERIMENT OVER 1500KM EMPLOYING 22 CASCADED OPTICAL AMPLIFIERS, Electronics Letters, 29(5), 1993, pp. 485-486
The authors demonstrate an over 1500 km transmission experiment employ
ing WDM technique and optical amplifiers. Four 591.2 Mbit/s IM-DD chan
nels were transmitted through 22 cascaded erbium-doped fibre optical a
mplifiers. The result shows the possibility of long distance multichan
nel optical communication systems.