Dark fiber – which is also known as unlit fiber or black fiber – is an unused optical fiber that has been laid. It is usually used in Telecom and Network Communications, and there are thousands of miles of unused dark fiber cables across the US. While it is currently unused, it’s known to be “dark” as no light pulses are being transmitted through it.
Fujitsu has signed a design, construction, operations, and maintenance agreement with Michigan’s Traverse City Light & Power (TCL&P) for a fiber to the premises (FTTP) deployment project. TCL&P plans to expand from its current dark fiber service offerings to gigabit broadband supply in its home community of Traverse City, MI.
To fulfill the growing demand for bandwidth driven by Cloud services, IoT and interconnected infrastructures, dark fiber providers have entered the market and are working to provide massive bandwidth, low latency, and high quality connectivity to the end customer in the form of raw glass: dark fiber.This article explains the basic concepts of fiber optics and the difference between dark fiber, lit fiber and wavelengths. You can learn about the pros and cons of dark fiber versus lit services from carriers.
Pico has launched a dark fiber backbone network for the New York/New Jersey financial community with a capacity of 10 Tbps. The fiber-optic network connects such Wall Street liquidity centers as Equinix NY4 (Secaucus), Nasdaq (Carteret), Intercontinental Exchange NYSE (Mahwah), and Cyxtera NJ2 (Weehawken).
Dark fiber provider United Fiber & Data is building a global data center & colocation provider” for an unknown customer in the New York City area. The facility will use 25 pairs (50 fiber strands total) of dark fiber to connect a Manhattan-based data center to the customer’s facility in Secaucus, NJ, and another data center in Newark, NJ. The dark fiber is part of UFD’s wholly owned and operated, greenfield built, low-latency network that connects the company’s more than 60-mile metro fiber-optic network in New York City, which has more than 330 buildings on net.
Transaction Network Services has significantly upgraded and expanded its network capacity to include dark fiber connectivity in the strategically important “New York Triangle”, giving financial traders ultra-high-speed access to market data and TNS’ financial community of interest. The new TNS dark fiber network can be expanded up to four terabits of capacity, effectively preparing traders’ networks for the future as their data requirements with TNS grow.