dark fiber


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dark fiber

(1) Also known as "unlit fiber," it is optical fiber that is laid in the ground, but not used. During the late 1990s, so much fiber had been installed worldwide in anticipation of Internet demand that there is still a huge amount of fiber that has never been lit. The projected demand has also been curbed by the improvements in WDM technology, which allows more channels to be transmitted in a single fiber strand. Contrast with lit fiber.

(2) Optical fibers that are installed and sold to carriers and large businesses without any optical or electronic signaling in their path. The customer is responsible for adding the transmission system at both ends. See TONS.
References in periodicals archive ?
Our team is prepared and driving forward to bring this new carrier neutral dark fiber route to market in 2016.
19, 2015 /PRNewswire/ -- USA FIBER, a company that engineers, builds and operates mission critical dark fiber networks for clients in the telecommunications, Internet, data center, government, research & education and large enterprise space, has today announced a new unique dark fiber build connecting Ashburn to Baltimore that creates a new fiber crossing the Potomac River, uniquely underground and bypassing Washington DC.
The completed Mahwah route is shorter than originally engineered, which enables us to provide financial firms with an even better solution for high-bandwidth, low latency connectivity, said Zach Nebergall, vice president of metro dark fiber at Zayo.
The 92-km dark fiber acquisition provides the city of Vienna with the potential to expand its city network and become the second largest wired city in the world.
Zayo, a provider of bandwidth, colocation and dark fiber infrastructure services, has signed a multi-year agreement with Denver-based PeakColo.
The lease structure allows for an open dark fiber lease platform that simplifies how service providers exchange data between data centers in the market.
The State of Iowa, Iowa Telecommunications and Technology Commission, operating the Iowa Communications Network (collectively ICN) is seeking Bid Proposals for Leased Telecommunications Service for Single Mode Dark Fiber Optic Service or Ethernet Service which can be delivered by fiber based from Part III End Point locations to ICN Connection Point of Presence (CPOP) locations.
The last issue to consider with dark fiber is the physical paths or route of the fiber.
The Dark Fiber Community is an educational platform that connects communications equipment providers, dark fiber manufacturers, data center builders, tower builders, and financing sources.
USA FIBER said it has announced a new massive dark fiber network in Northern Virginia.
USA FIBER is building new dark fiber networks with massive scale.
INOC, a 24x7 Network Operations Center (NOC) and global provider of outsourced NOC monitoring, reporting and support services for Carriers, today announces it has joined Allied Fiber's Dark Fiber Community.