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A flexible and compact hierarchical optical cross-connect (HOXC) node that considers a practical waveband add/drop restriction is proposed. We introduce a prototype HOXC system and verify its technical feasibility and transmission characteristics.
We analyze the performance of a multiple-ROADM-ring connected network that utilizes Hierarchical Optical Cross-Connects (HOXC). We clarify the impacts of the waveband capacity and waveband add/drop ratio at the HOXC node on the node performance and switch scale.
We propose a novel compact hierarchical optical cross-connect architecture that implements the colorless waveband add/drop ratio restriction, and a novel MUX/DMUX that can be used by different wavebands. We show that the proposed cross-connect architecture can reduce switch scale significantly compared to conventional one. The function of the newly proposed MUX/DMUX is verified in an experimental...
We propose a route and wavelength/waveband assignment method for multi-ring networks linked by hierarchical optical cross-connects. Numerical experiments reveal that the switch scale is significantly reduced at the cost of a marginal drop in routing capability.
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