Comcast’s hollowcore fiber will be the foundation of 10G internet speeds

We’re excited to bring Transform 2022 back to life on July 19th and virtually July 20-28. Join AI and data leaders for sensible conversations and exciting networking opportunities. Register today!


Comcast announced that it is adopting advanced holocore fiber to serve as the foundation for its fast 10G network which will be capable of 10 gigabits per second internet speeds.

Comcast is the first Internet service provider to adopt fiber optic cable, delivering fast internet speeds and low latency (network responsiveness). This real world deployment – considered by ISP to be the longest deployment of holocore fiber worldwide – is a significant addition to Comcast’s network and will help bring it to 10G networking.

The cable company has long talked about its 10G network, but low-latency tech – which enables faster interaction – will be welcome news for gamers who rely on fast interaction in multiplayer games. This holocore fiber tech has significantly better network performance than traditional glass-based fibers, Comcast said.

In a test of the technology, Comcast combined two Philadelphia locations with a 40-kilometer hybrid deployment of holocore and conventional fiber. This is considered to be the longest networking of its kind in the world.

Unlike conventional fibers, in which laser light travels over a solid glass core, holocore fibers are hollow inside with air-filled channels. Light travels about 50% faster in air than glass, so data travels about 150% faster through hollow fiber with a 33% lower latency than conventional fibers.

The use of fast light speeds can double the reach for latency-critical applications or increase the transaction rate by about 47%. For the deployment announced today, Comcast worked with holocore fiber cable solutions provider, Lumenicity.

Holocore fiber can speed up the Internet.

Elod Nafshi, executive vice president and chief network officer of Comcast Cable, said in a statement: “Holcor Fiber is a leap forward in how we deliver ultra-fast, ultra-low latency and ultra-reliable services to our customers.” “As we continue to develop and use technology to deliver 10G, multigigabit performance to millions of homes, holocore fiber will help ensure that the network that powers the experiences is the most advanced and supreme in the world.”

Comcast successfully tested two-way transmission (upstream and downstream traffic travels on the same fiber), used compatible and direct-detect systems (allows for forward and backward technology compatibility), and at 10 gigabits per second (Gbps). Generated traffic rates up to Gbps. Together on a single strand of holocore fiber.

“We are proud to work with Comcast on the next generation holocore fiber, which we believe opens up new possibilities for connectivity worldwide,” David Parker said in a statement.

Holocore fiber networks can support virtualization, telemedicine, augmented and virtual reality and other emerging services. Going forward, Comcast is exploring opportunities to strategically use holocore fiber in select core- and access-network deployments. From 2017 to 2021, Comcast has added more than 50,000 new root mile fibers to its network and is actively building more fiber in cities and towns across the United States.

Similar Posts

Leave a Reply

Your email address will not be published.