Routing Capacity of Contention/-less SDM-ROADM Design

We evaluate the switching capacity of ROADM nodes for space division multiplexed (SDM) networks considering the joint and independent switching of spatial channels. We account for total switching functions (routing and add/drop) and quantify the impact of contentional and partial-contentional features and the reduction of switching capacity with respect to colorless, directionless, and contentionless SDM-ROADM.