Electronic communications systems are made of three basic components: a transmitter, a receiver, and a transmission medium. Use a video clip game system with a wired controller for example. The controller is a transmitter, although the console is a receiver, and also the wire that connects the 2 is the transmission medium. This wire is normally composed of copper. The length from a couch to your tv is relatively short set alongside the distance two continents separated by an ocean. Because of this distance fiber optic laser diode communication cables are used. In the place of electrical signals being transmitted, lasers are widely used to generate light across fibers of glass.
Until recently, to transmit 1s and 0s the laser would turn the light could be pulsed on from an off state. Researchers in the National Institute of Standards Technology (NIST) together with University of Colorado have reversed the procedure and now have successfully generated a number of “dark pulses.”
Any transmission medium will have irregularities which disrupt communications. What the researchers have found is that by sending Dark Pulses they are able to minimize the irregularities typically present in Fiber.
In accordance with the lead researcher, Richard Mirin of NIST, it should be many years before this technology makes it into the commercial marketplace.