Machbarkeit kohärenter Einfaser-UDWM PONs mit 1000 Teilnehmern und 100 km Reichweite

Coherent UDWDM PONs establish virtual point to point links seperated by the wavelength and without need for TDM. Because of the high receiver sensitivity they clearly outclass TDM or TDM/WDM based PONs in view of flexibility, reach, splitting factor and management complexity. The talk deals with some physical problems and their mitigation in single fiber PONs e. g. backscattering and backreflections into the receiver, channel selectivity and properties of the network.