Modular broadcast-and-select optical crossconnects and their physical layer modelling

In this work, a migration scenario of a family of OXC architecture is proposed. This migration is completed in discrete stages, which is plausible since the architecture is highly modular. This modularity is an essential asset for low initial cost. Also, the physical layer modelling of the proposed nodes is presented, allowing to identify how many nodes can be cascaded. The node scalability vs. cascadability issue is assessed, taking into account many considerations like the availability of two technological platforms (all-optical and optoelectronic), as well as other technological constraints like the modulation bandwidth of the corresponding WCs.