An energy-efficient node interface for optical core networks

This paper investigates the potential reduction of energy consumption in core optical network by introducing within core nodes an intermediate optical cross connect between optoelectronic devices and the router. By bringing both energy efficiency and flexibility at the same time, the solution is suitable for shaping the evolution of optical core networks over the mid and long term towards shifting patterns of dynamic optical network resources use. The benefits in power consumption of the proposed solution are investigated through simulations and compared to alternatives currently implemented within core nodes.