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July 20, 2016 02:00 am
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/WUOs5YBjets/facebook-pitches-laser-beams-as-the-high-speed-internet-of-the-future
Facebook Pitches Laser Beams As The High-Speed Internet Of The Future
An anonymous reader quotes a report from PCWorld: Facebook says it has developed a laser detector that could open the airwaves to new high-speed data communications systems that don't require dedicated spectrum or licenses. The component, disclosed on Tuesday in a scientific journal, comes from the company's Connectivity Lab, which is involved in developing technology that can help spread high-speed internet to places it currently doesn't reach. At 126 square centimeters, Facebook's new laser detector is thousands of times larger. It consists of plastic optical fibers that have been "doped" so they absorb blue light. The fibers create a large flat area that serves as the detector. They luminesce, so the blue light is reemitted as green light as it travels down the fibers, which are then bundled together tightly before they meet with a photodiode. It's described in a paper published on Tuesday in the journal Optica. Facebook says there are applications for the technology both indoors and outdoors. Around the home, it could be used to transmit high-definition video to mobile devices. Outdoors, the same technology could be used to establish low-cost communications links of a kilometer or more in length. In tests, the company managed to achieve a speed of 2.1Gbps using the detector, and the company thinks it can go faster. By using materials that work closer to infrared, the speed could be increased. And using yet-to-be developed components that work at wavelengths invisible to the human eye, the speed could be increased even more. If invisible to humans, the power could also be increased without danger of harming someone, further increasing speed and distance.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/WUOs5YBjets/facebook-pitches-laser-beams-as-the-high-speed-internet-of-the-future
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