Abstract
High spectral efficiency was realized in 20-Gbit/s-based DWDM experiment by manipulating the pulsewidth to suppress XPM. In optimum pulsewidth 25ps case, 50ch × 20Gbit/s signals were transmitted 2,000 km in high local dispersion-managed line with high spectral efficiency of 0.4bit/s/Hz.
© 2000 Optical Society of America
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