Abstract
We report 2.5 Tb/s (64 × 42.7-Gb/s) WDM transmission over 4000 km (forty 100-km spans) of non-zero dispersion-shifted fiber. This capacity × distance record of 10 petabit-km/s for 40-Gb/s systems is achieved in a single 53-nm extended L band using retum-to-zero differential- phase-shift-keyed modulation, balanced detection, and distributed Raman amplification.
© 2002 Optical Society of America
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