We investigateon a two-fiber short-reach self-homodyne coherent transmission system without optical amplification,where the same transmission laser is used to generate a modulated signal carrying ...

We successfully demonstrate a record real-time transmission over 3600-km G.652.D fiber with at least 7.9-dB OSNR margins using commercially available 200-Gb/s PDM-QPSK transponders, which reserves ...