[ad_1]
Editor’s opinion: A team of researchers from the National Institute of Information and Communication Technologies (NTIC) in Japan broke the old Internet speed record of 178 terabits per second. The new record? A mind-boggling 319 terabits per second. It took a bit of ingenuity and tweaking to get it to work, but the good news is that the new fiber optics are compatible with existing equipment, which means it might not be too difficult to modernize them. existing lines.
To achieve this feat, the researchers (led by Benjamin J. Puttnam) built a transmission system that fully utilizes wavelength division multiplexing technology by combining different amplification technologies.
Their quad-core optical fiber (with a standard outside diameter of 0.125mm) spanned 69.8 km and was looped 43 times for a final transmission distance of 3,001 km, or about 1,865 miles.
The research paper on the issue goes into much more detail if you’re into this sort of thing, and involves the use of rare earth ions and lasers. It sounds complicated and awesome at the same time, assuming of course you can figure it all out.
The combined transmission bandwidth> 120nm enabled 552 wavelength division multiplexed channels by adopting 2 types of doped fiber amplifiers as well as distributed Raman amplification, to allow the recirculation of the wide signal transmission. bandaged.
The team said the fiber optic used can be cabled with existing equipment. The hope, they added, is that this breakthrough can enable convenient high-speed data transmission in the near future, perhaps as a next step beyond 5G.
[ad_2]
Source link