We demonstrate the first uncompensated transmission of a 640 Gbps RZ-OOK channel over 100 km of standard SMF. The error-free performance of the ultrafast link was achieved by a new, wavelength-transparent and polarization-invariant signal conjugation scheme for the first time.
Jürgen Brugger, Christophe Moser, Eric Tremblay, Victor Javier Cadarso Busto, Jonas Grossenbacher