N. Henmi et al., AN ARRANGEMENT OF TRANSMISSION-FIBER DISPERSIONS FOR INCREASING THE SPACING BETWEEN OPTICAL AMPLIFIERS IN LUMPED REPEATER SYSTEMS, IEEE photonics technology letters, 5(11), 1993, pp. 1337-1340
This paper proposes a method for suppression of degradation due to non
linearities in transmission fibers in lumped repeater systems. This me
thod increases optical amplifier repeater spacing by setting a normal
dispersion fiber as a transmission fiber, and by setting a 1.3-mu m ze
ro-dispersion wavelength fiber as a dispersion compensator at the end
in each repeater spacing so as to keep the total dispersion of the com
plete amplifier repeater spacing at around zero. By employing this new
ly proposed method, a less than l-dB power penalty, 10-Gb / s, 950-km
transmission experiment has been successfully demonstrated with keepin
g the repeater spacings at 95 Inn and setting the repeater output powe
r at 13 dBm (20 m(W) over bar$$).