LONG-DISTANCE WDM TRANSMISSION EXPERIMENTS USING THE DISPERSION SLOPECOMPENSATOR

Recently, long-haul transmission experiments of more than 100-Gbit/s c apacity were reported. Wavelength-division multiplexing (WDM) is a key technology to achieve this kind of high-capacity transmission. One te chnical problem of the long distance WDM transmission is the dispersio n slope of the transmission fiber. It causes the difference of the chr omatic dispersion accumulation upon the WDM channels, and it will lead to transmission performance degradation. In order to solve the proble m, equalization of the dispersion slope should be quite effective. Thi s paper describes the results of the long-distance transmission experi ments using the dispersion slope equalization. Both IM-DD WDM and opti cal soliton WDM are discussed.