4 x 100Gb/s Unrepeatered Transmission over 462km Using Coherent PDM-QPSK Format and Real-Time Processing
18 September 2011
Low loss and high effective area (135µm2) fibre is combined with powerful third order Raman pumps and remote amplification to span a record 462km long unrepeatered link with four 100Gb/s PDM-QPSK channels and real-time digital processing. OCIS codes: (060.2330) Fiber optics communications; (060.1660) Coherent communications.