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Dark Fiber

What is Dark Fiber?

Also known as unlit fiber, dark fiber refers to fiber optic cable that has been laid underground and does not have data transmitting on the fiber strands. It is generally used for telecom and network communications. Organizations can lease dark fiber, and this will give them ultimate control over the protocols and equipment used for their network connectivity.  Dark fiber can be an appealing solution for businesses or service providers that want to expand their network capacity without having to lay new cables.  

Dark Fiber from WIN includes:  

  • Exclusive lease of specific fibers within our fiber cable 
  • OTDR (optical time domain reflectometer) testing prior to execution to ensure integrity of the cable  
  • Option to execute the use of fiber through a WIN Data Center 
  • Maintain the leased fiber and perform regular inspections 
  • Our Network Operations Center will monitor cables for any failures, interruptions or outages and quickly respond and resolve issues.  

View a more comprehensive description of our dark fiber services.


Frequently Asked Questions

Dark fiber providers, network maps, and industry associations could help you find potential routes.  

Many organizations don’t have the in-house expertise to manage and light the fiber. There could also be higher initial costs, although there could be long-term cost savings.  

Lit fiber is actively transmitting data and is managed by a service provider. Dark fiber is unlit and can be leased to organizations for them to manage and light. 

RELATED Resources

Fiber Optic Services

Network Engineering

Network Operations Center

Working With Us

What to expect from a strategic partnership with WIN Technology

Understanding Fit

Our process is collaborative from the start. As we discuss your expectations, we communicate openly, and we keep the promises we make.

Understanding Needs

Through our discovery process, we seek to build an accurate understanding of your needs so that a sound and mutually understandable promise can be made.

Right-Sizing the Effort

The elements of your proposal are refined as your needs become clear. This ensures alignment on the anticipated value of what we commit to deliver to you.

Proving Competency

As we engage in the project, we monitor and discuss status, performance, changes and improvements through our established delivery and communication practices. 

Partnering for the Future

Throughout our partnership, as we keep the promises we have made to you, we enrich the value of services with a continuous focus on practical next steps.