The fleece is very white, strong, close and free from dark fiber.

Prices for dark fiber may sometimes be lower than the price of a high speed leased line rental.

Their fleece is very white, strong, close, free from dark fiber and extends down the legs.

One proposal called for the city to install dark fiber which would be made live by a contractor.

Could anyone explain to me what this dark fiber is that Google has?

There's a lot of unused dark fiber laying around.

And a bunch of other people laying in dark fiber.

People have wondered for years what Google might be up to with all that dark fiber it had bought up around the country.

This new technology was a breakthrough in the industry with lines of dark fiber laid though many major cities.

"I said yes, because virtually all of the revenues came from the sale of dark fiber."