[Term of the Day]: Dark Fiber

[Term of the Day]: Dark Fiber

Term of the Day 
 

Dark Fiber 

 

Definition — What is Dark Fiber? 


The term Dark Fiber refers to fiber optic cable that has been laid in the ground that isn’t being used. In fiber-optic networks, data is being transmitted through the cables using pulses of light, so it makes sense that optical fiber cables that are not being used to convey information are described as dark fiber. There are thousands of miles of dark fiber across the U.S., Rather than adding new strands of fiber-optic to an existing network, the Network Service Providers (NSPs) will often install more fiber than currently needed to fulfill their bandwidth requirements, with the idea that they can expand operations using the dark fiber cables in the future and based on the need they can also be leased. Clients will use the dark fiber lines to create their own privately operated optical fiber network. Dark fiber networks are separated from the main network and are controlled by the client. Dark fiber provides high levels of performance, security, and superfast speeds. They can be set up in multiple ways, including point-to-point or point-to-multipoint configurations, or even dark fiber rings.  


Dark fiber network continues to be a preferred model for schools, hospitals, and other sectors, dark fiber represents an incredible opportunity for companies across industries, especially as they digitally transform or upgrade their networks.

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