The CNET Lounge forum

General discussion

What Dark Fiber Is

by adkinsjm / February 27, 2006 2:10 AM PST

Dark fiber is fiber optic cable that has been laid, but not in use. It is called dark fiber because fiber optic cables transmit pulses of light instead of electrical current, so hence the "dark". There is so much of it because in the internet boom of the late 1990's, companies were spending loads of money building out fiber networks and when the bubble burst, some of these companies went bankrupt. Other's just didn't have the demand needed to utilize all of this fiber capacity.

Dark fiber isn't the problem, what is the issue is connecting the individual homes and businesses to fiber networks, the so-called "last mile" problem. It does cost a lot of money to bring fiber to the premesis, but Verizon and other companies have promised fiber to the home for years and are just starting to connect people up.

Google is a player with dark fiber since it can be bought for pennies on the dollar for the cost of building these networks. Who knows what Google is up to? Some people think they will roll out their own internet service and others think they just are connecting various data centers they control.

Discussion is locked
You are posting a reply to: What Dark Fiber Is
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: What Dark Fiber Is
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Popular Forums
icon
Computer Newbies 10,686 discussions
icon
Computer Help 54,365 discussions
icon
Laptops 21,181 discussions
icon
Networking & Wireless 16,313 discussions
icon
Phones 17,137 discussions
icon
Security 31,287 discussions
icon
TVs & Home Theaters 22,101 discussions
icon
Windows 7 8,164 discussions
icon
Windows 10 2,657 discussions

FALL TV PREMIERES

Your favorite shows are back!

Don’t miss your dramas, sitcoms and reality shows. Find out when and where they’re airing!