32 /spl times/ 11.4 Gbit/s transmission over 4000 km using dispersion managed 200 km spans

We have transmitted 32 /spl times/ 11.4 Gbit/s signals over 4000 km using 200 km spans with pump power applicable for undersea cable systems. We believe that the result shows the feasibility of the 200 km spans for undersea cable systems.

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