A new laser holds the potential to increase by orders of magnitude the rate of data transmission in the optical-fiber network — the backbone of the Internet. Light is capable of carrying vast amounts of information—approximately 10,000 times more bandwidth than microwaves, the earlier carrier of long-distance communications. But to utilize this potential, the laser light needs to be as spectrally pure — as close to a single frequency — as possible. The purer the tone, the more information it can carry, and for decades researchers have been trying to develop a laser that comes as close as possible to emitting just one frequency.
from Physics News — ScienceDaily http://ift.tt/1d9R5A1