NG Ethernet Forum

A paper titled "10 x 107-Gbit/s Electronically Multiplexed and Optically Equalized NRZ Transmission over 400 km" by G. Raybon, P. J. Winzer, and C. R. Doerr (Bell Laboratories, Lucent Technologies, Holmdel, NJ 07733 USA) reports about the successful transmission of 1 Tbps using 10 electronically multiplexed 107-Gbit/s NRZ channels (0.7 bits/s/Hz spectral efficiency) on nonzero dispersion fiber.
A single 13.375-Gbit/s 2exp31-1 pseudo-random bit sequence (PRBS) generator is use to generate the 107-Gbit/s signals using electronic multiplexers and delay components. Ten of such signals are then multiplexed onto a single nonzero dispersion fiber.
After the optical equalizer (OEQ) and the actual 400 kilometer transmission, the light signal is inversely demultiplexed and compared using a 13.375-Gbit/s error detector.

For more information, please read the paper at http://www.ofcnfoec.org/materials/2006PDP32.pdf.

its evolving so rapidly but let me read this and post back some opinions.