dark fiber

Jess Cohen jess at corenap.com
Thu Feb 11 16:21:26 UTC 2010

GOOGLE: Dark fiber is optical fiber infrastructure (cabling and repeaters) that is currently in place but is not being used. Optical fiber conveys information in the form of light pulses so the "dark" means no light pulses are being sent. For example, some electric utilities have installed optical fiber cable where they already have power lines installed in the expectation that they can lease the infrastructure to telephone or cable TV companies or use it to interconnect their own offices. To the extent that these installations are unused, they are described as dark.

-----Original Message-----
From: Deric Kwok [mailto:deric.kwok2000 at gmail.com] 
Sent: Thursday, February 11, 2010 10:14 AM
To: James Jones
Cc: nanog at nanog.org
Subject: Re: dark fiber

Can I have question?

What is dark fiber?

Thank you

On Wed, Feb 10, 2010 at 5:08 PM, James Jones <james at freedomnet.co.nz> wrote:
> I am doing some research....is there a way to find out where there is dark
> fiber and who own's it?

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