0.8 bit/s/Hz spectral efficiency at 10 Gbit/s via vestigial-sideband filtering
23 January 2003
The first 10 Gbit/s DWDM transmission at 12.5 GHz spacing without polarisation division multiplexing or polarisation interleaving is demonstrated. This dense channel spacing is accomplished via vestigial sideband filtering and 8 x 10 Gbit/s has been transmitted over 200 km of SMF-28 fibre.