Bonk, R.; Schmuck, H.; Poehlmann, W.; Pfeiffer, Th. (Alcatel-Lucent Deutschland AG, Bell Labs Stuttgart, Germany)
Long reach passive optical network architectures based on time-and-wavelength-division multiplexing (TWDM) are investigated. Generic variations of architectures employing different topologies like multi-stage, tree-like and bus-like splitters are studied. We confirm by simulations the feasibility of such architectures deploying a chain of linear semiconductor optical amplifiers (SOA). State-of-the-art linear SOAs support a reach of up to 100 km with a total split size of 512 in a non-wavelength routed fiber plant.