Nokia claims it will demonstrate tera-bit internet (http://www.zdnet.com/). That would be 1,000 times faster than Google fiber and 10 times faster (or more) than the current internet backbone. One thing to note is that the fiber itself isn't changing. A strand of fiber is basically as pure as possible so the changes come at the ends where you put (and take) signals on the fiber. In this case, they are tuning multiple wavelengths to be more efficient so they can carry more information.