抄録
The difficulty in greater enhancement of fiber capacity motivates our introduction of spatial division
multiplexing. Since using multiple fibers/cores/modes on a link increases the complexity of switching
operations, more efficient optical node architectures must be developed. In this paper, we present a
classification of switching capabilities at the nodes, in terms of space and wavelength, and show two
node architectures based on different switching classes: subsystem-modular optical cross-connect nodes
and fiber cross-connect nodes. We did numerical simulations on two topologies of different sizes and
cost analysis for the results and concluded that both node architectures can substantially reduce the node
hardware scale, which clarifies that efficient switching for spatial division multiplexing can be achieved.
