CFN Services » Lit and Dark Fiber Resources

Dim Fiber Value

Jennifer — Sun, 15 Aug 2010 15:16:34 +0000

What is Dim Fiber?
Optical fiber only partially lit in a fiber optic transmission system (FOTS) employing wavelength division multiplexing (WDM).WDM technology can support a considerable number of wavelengths running simultaneously over a single optical fiber within a cable comprising perhaps a great number of fibers. A dim fiber is one over which not all available wavelengths have been lit and which, therefore, has excess capacity.

Why Dim Fiber?

A dim Fiber customer gets assigned a wavelength in a fiber span that provides flexibility and performance similar to dark fiber with the following benefits:

• Use of fiber span not limited to a specific bandwidth, just a specific wavelength, thus the customer has more control.
• Reduced equipment on the circuit reducing potential outages.
• Reduced equipment on the circuit reducing processing latency.
• Dark Fiber performance at a lower cost.
• Dark Fiber performance with a variety of contract terms closer to customer experience with lit services.

Why CFN Services Dim Fiber Solutions?

With CFN Services as your partner on your dim fiber plans – CFN will manage and monitor the health of the fiber span via other circuits running on the same fiber span.
Dim Fiber allows wireless operators to take advantage of the owners economics and cost efficiencies of a managed backhaul solution, which provides lowest per unit cost as the backhaul traffic increases
CFN takes away the hassle and worry of managing an Outside Plant Network such as relocations, construction, outages, etc. by managing the full solution so as a customer you get only the benefit of dim without the down side.
For longer spans, CFN can provide mid-span regeneration reducing equipment, new collocations and operational cost and complexity for the customer.

Contact CFN Services to see if Dim Fiber is the solution for you: Contact CFN Now

Reduced Latency for Toronto and NY/NJ

Jennifer — Mon, 25 Jan 2010 19:25:36 +0000

CFN Services has announced reduced latency between Toronto Financial District and NY/NJ Financial District. CFN Services, continues their commitment to continually evaluate and improve network latency to all major Global Exchanges. The ability that CFN has to quickly react to the market and the needs of their users provides them a differentiation in the ultra low latency space. CFN offers turnkey Global Exchange Ultra Low Latency Connectivity, and also provides custom network design and optimization for their users. CFN brings a long history of experience and expertise in the fiber network space and that value is passed along to their customers to help provide them the edge they need to increase their execution success in high frequency trading.

Characteristics Dark and Lit Fiber

Jennifer — Fri, 08 Jan 2010 17:21:16 +0000

Fiber‐optic communication is defined as the method of transmitting information from one place to another by sending pulses of light through an optical fiber. The definition of zero network latency is a network transporting their information at the speed of light. This being said, the further the light has to travel, the higher the latency. Fiber networks normally do not follow a direct line between any who two locations. Instead they follow geographic contours that relate to roads or railroad tracks to name a few. It is important to understand the exact route that your circuit will follow so that you can eliminate any wasted distance.

In the environment, there are two main options for how you can extend the transmission of light through the fiber; optical amplifiers and regenerators. Amplifiers and Regenerators are placed along the fiber optic route to help ensure that the signal is able to travel the full distance, while keeping its’ strength and information. There is only one main difference between the two and that is that an amplifier adds light to the existing wavelength to help increase the strength of the signal without having to add more latency, whereas a regenerator will add a substantial amount of latency to add to the strength of the wavelength. Both of these require both a lit and dark fiber solution. A dark fiber is a term that is used to describe fiber optic strands that are not being used or has no equipment being used on the ends of the fiber. Its contrast is called a ‘lit’ fiber, meaning that it is an active fiber optic cable. Unfortunately, due to so few telecom companies still offering dark fiber, the available dark fiber route may be much longer then an alternative lit circuit oath from another provider.

If you want to read more on this topic, take a look at our case study.

Trading Beyond the Horizon 2010

Jennifer — Tue, 22 Jan 2008 18:58:37 +0000

Thank you for requesting Trading Beyond the Horizon.
Please provide the information below to receive the pdf download

If you have any issues with the White Paper download please contact lowlatency@cfnservices.com