Space-division multiplexing technology based on multi-core fiber and few-mode fiber in passive optical networks

We review space-division multiplexing passive optical networks (SDM-PONs) based on multi-core fibers (MCFs) and few-mode fibers (FMFs). We compare and analyze the characteristics in terms of MCFs and FMFs used in PONs. A scheme of MCF based SDM-PON with colorless ONUs without any signal processing technology is demonstrated, thereby achieving a low cost and making the system design much easier.

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