Power-efficient design of multicast wavelength-routed networks

In this paper, we introduce the power-efficient design space for multicast wavelength-routed networks. The power-efficient design space is based on th e impact of power on the overall design of wavelength-routed networks. Two cross-connect architectures on this design concept are investigated, One is an existing architecture called splitter-and-delivery (SaD), The other is a new architecture called multicast-only splitter-and-delivery (MOSaD). The MOSaD architecture uses power splitters for multicast connections only, allowing unicast connections to pass without enduring unnecessary power lo sses, Our cross-connect design provides a strictly nonblocking service for unicast connections while eliminating unnecessary power loss of the SaD cro ss-connect. Experimental results demonstrate that the MOSaD architecture provides subst antial savings in cost and reduction in signal power loss with minimal effe cts on the blocking performance of the network.