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Analysis Discover the stories behind the headlines. Features Take a deeper look at the emerging trends and key issues within the global scientific community. News Stay informed about the latest developments that affect scientists in all parts of the world. Research updates Keep track of the most exciting research breakthroughs and technology innovations. Latest Explore all the latest news and information on Physics World. The system used in this case is easier to implement in actual physical networks and more like the infrastructure that already exists. While the same group of researchers hit the petabit milestone back in December 2020, they used more complicated technology that required extra work to encode and decode the signals. The team plans to continue to improve both transmission speed and transmission distance in their future research. In specialized experiments like this one, there's usually a balance between distance and speed – high speeds are harder to maintain over longer distances. Researchers also applied various other optimization, signal boosting, and decoding technologies.Ī table comparing data transmission experiments. A total of 801 parallel wavelength channels were packed into the same line.Īnother innovation was to use four cores instead of the standard one, essentially quadrupling the routes for data to take, all while keeping the cable the same size as a standard optical fiber line. The experiment used 0.125 mm diameter multi-core fiber (MCF), with wavelength division multiplexing (WDM) acting as the magic ingredient: This technology means signals of different wavelengths are sent simultaneously through the line. Only a year ago, researchers from the same institute were getting maximum speeds around a third of what they've now managed, showing the rapid development of the technology. This, the researchers say, should make future upgrades towards this sort of speed easier. One of the exciting aspects of the new data transmission speed record is that researchers achieved it using an optical fiber network not dissimilar to those currently used for internet infrastructure. To put it another way, there's enough bandwidth here to transmit not just one 8K video feed, or a hundred or a thousand 8K video feeds, but 10 million 8K video feeds simultaneously. The record was set by a team at the National Institute of Information and Communications Technology (NICT) in Japan, transmitting the data over 51.7 kilometers (32 miles). That's a million gigabits shifted down a line every single second.
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