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 ?
19 August 2016 - US-based dark fiber network owner Strome Fiber Holdings, LLC has acquired network and colocation assets of New York-based bankrupt dark fibre network developer AF-Southeast, LLC, the company said.
Expression of Interest for Optical Dark Fibres Network Rental, for UNOG (SC 1000179057)
Dark fibre is the name given to a fibre circuit where the client connects their own network equipment to deliver whatever bandwidth is required and not incur a bandwidth related charge.
Analysing the offers, the research revealed that to some extent, dark fibre is not a standard commercial product and is rather offered on-demand.
This year, investment is a core theme and delegates can hear from leaders in this focused sector on subjects such as the return on investment that dark fibre provides and the impact this has on pricing strategies.
The deal will see CityFibre installing dark fibre backhaul connections to mobile masts across both EE and Three's networks, which it said will help enhance network performance capabilities, and offer long term cost efficiencies.
Zayo, a provider of fibre-based bandwidth infrastructure and network-neutral colocation services, said today that it has entered into a long-term dark fibre agreement with T1Company, a provider of high-speed dedicated access and hosted Cisco VoIP services.
The event will also act as a forum for recommendations and regulatory changes that the industry sees as necessary, assess investment is a core theme and the perspective of Dark Fibre as an asset, and its ROI, review the Dark Fibre cost stack and its impact on pricing strategies, and look in detail at customer segments, and geographic areas offering new growth opportunities including central and eastern Europe, Balkans and Turkey and Africa.
New opportunity for Dark Fibre is emerging both inside the metro and also in connecting rural business parks, enterprises and data centres outside city centres.
Research to be published by consulting company BroadGroup reveals that in both western markets and in emerging central and eastern Europe, demand for dark fibre is experiencing new growth.
In this, the first assessment of Dark Fibre markets in Europe and Eastern Europe for many years, the study identifies key players, reveals current market trends, pricing, demand, emerging customer segmentation and forecasts for future development and growth.
Dark fibre is available for sale or lease to licensed operators who wish to establish an optical network between their own locations and networks.