Highly-scalable, low-crosstalk architecture for ring-based optical space switch fabrics

Abstract

A ring-based switch architecture that combines the Clos network with populated switch-and-select stages is proposed, achieving significantly reduced crosstalk compared to other non-blocking architectures. Detailed physical-layer simulation results show a 128×128 switch exhibits a power penalty of 18dB, improving >10dB compared to the Benes switch.