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We propose a novel optical node architecture that fully utilizes $M\times M$ wavelength-selective switches (WSSs), where the subsystem modular architecture is adopted and the $M\times M$ WSS ports are optimally allocated to inter-node fibers and add/drop fibers in accordance with the traffic distribution. The proposed architecture can accommodate the maximum incoming (outgoing) fiber number of...
We provide a guideline on the size of the MxM WSS needed to create future scalable OXCs. Analyses show that 10×10 WSSs can create an OXC that is scalable to 40×40 with marginal routing-performance offset.
We demonstrate novel large-scale and cost-effective ROADM architecture exploiting the subsystem-modular express switches and tailored transponder banks for add/drop functionality. Simulations show that the proposed ROADM offers virtual-C/D/C performance. Good transmission characteristics are experimentally confirmed.
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