02/08/2017

CableLabs high on coherent optics for short-haul access networks

CableLabs has come out strongly in favor of using coherent optics technology for short-haul access networks. 

“Today, the most constrained part of the network, and the most costly to upgrade, is the fiber infrastructure between the headend and the fiber node, to the wireless cell radio or to large business customers,” said CableLabs “distinguished technologist” Alberto Campos, blogging for CableLabs. “Avoiding costly fiber re-trenching requires a fundamentally new approach to this part of the network. This is where coherent technology provides an opportunity.”

With fiber being used for business services, cell backhaul, node splits and fiber deep architectures, many cable plants have only two primary fibers that are feeding the fiber node and which remain available for access transport.

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