100 Gb/s (10×10 Gb/s) WDM transmission over 7200 km using distributed Raman amplification

1997 
We demonstrate for the first time high capacity (100 Gb/s) long-haul (7200 km) multi-channel (10x10 Gb/s) transmission using distributed Raman amplification. The noise performance of our 514 km Raman amplifier chain was 2 dB better than a similar amplifier chain using lumped Erbium-Doped Fiber-Amplifiers.
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