Thursday, February 28, 2008

164 terabit per second communication

We discuss exponential improvements in electronic, storage and communication technology and backbone networks.

The first NSFNet backbone links had a speed of 64 kilobits per second. Today, links with speeds of 10 gigabits per second are common. That is considerable improvement, but researchers have recently achieved 164 terabits per second over a distance of 2,500 kilometers, an indication that we will one day see much faster backbone links.

The researchers reported using "164 wavelength-division multiplexed channels modulated at 100 Gbps in the effort." In plain English, what is that saying?

How many times faster is 164 terabits per second than 10 gigabits per second? How many times faster is 10 gigabits per second than 64 kilobits per second?