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AWGRs' WDM capability provides a promising solution for optical switching. Their main problem, however, is poor scalability. In this paper, we show how to combine two scaling techniques to design an ultra-scalable AWGR-based optical packet switch with a total capacity close to 4×1016 bps.
The energy-per-bit efficiency has quickly become the ultimate limiting factor in the design of a switching fabric for routers and data center networks. People are now turning to optics for solutions. If switch fabrics can be implemented with optics, many E/O and O/E conversions will be removed and tremendous power saving can be achieved. Arrayed waveguide grating routers (AWGRs) provide the most promising...
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