<title>Optical distribution networks</title>

Abstract

Current optical networks are migrating towards WDM-based transport between traditional electronic multiplexers/demultiplexers, routers and switches. The ONRAMP Program addresses technologies, architectures and designs of future high performance data networks. This paper focuses on WDM aware IP networks with emphasis on access networks. The access network can be divided into the feeder network and the distribution network. Generally bandwidths of fiber closer to the end user is less precious. Thus in the distribution network, we propose the use of all passive optical components and remotely pumped amplifiers trading bandwidth assignment efficiencies for lower costs. We will examine the design of the distribution network from the view of services to be supported by the network and its desirable properties. Generic physical topologies will be considered and implementation optics presented.