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10 x 107-Gb/s NRZ-DQPSK Transmission at 1.0 b/s/Hz over 12 x 100 km including 6 Optical Routing Nodes

01 January 2007

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We demonstrate 100-Gb/s high spectral efficiency long-haul optical networking. Ten co-polarized 107-Gb/s electronically multiplexed/demultiplexed NRZ-DQPSK channels at 1.0 b/s/Hz spectral efficiency are sent over 1200 km, with an optical routing node every 200 km.