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Guru3D.com » News » Japanese researchers achieve speed of 319Tbit/s over 3001km via fiber

Japanese researchers achieve speed of 319Tbit/s over 3001km via fiber

by Hilbert Hagedoorn on: 07/20/2021 08:27 AM | source: tweakers.net | 8 comment(s)
Japanese researchers achieve speed of 319Tbit/s over 3001km via fiber

Researchers at the Japanese National IT Institute have established a new internet speed record using fiber optics. At long-distance 319Tbit/s transmission was obtained by the researchers.

The previous world record of 178Tbit/s was set by British and Japanese researchers last year but has been nearly doubled by NICT employees from Japan. Researchers have utilized a four-core and 0.125 mm diameter optical fiber cable. The transmission bandwidth was greater than 319Tbit/s. Based on wavelength division multiplexing (combining multiple optical channels on a single fiber optic cable). 

 

 

An S-band was also employed by the researchers who last year recorded 178Tbit/s although at just 40 kilometers away. NICT records of 319Tbit/s were reached over an extensive 3001-kilometer span. They state that over this distance they did not measure signal loss or delays in speed. According to NICT, theoretically, a normal fiber infrastructure can be compatible with the technology employed, but the modification of such a network would first be required.



Japanese researchers achieve speed of 319Tbit/s over 3001km via fiber Japanese researchers achieve speed of 319Tbit/s over 3001km via fiber Japanese researchers achieve speed of 319Tbit/s over 3001km via fiber Japanese researchers achieve speed of 319Tbit/s over 3001km via fiber




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cryohellinc
Senior Member



Posts: 3532
Joined: 2014-10-20

#5930650 Posted on: 07/20/2021 12:55 PM
Call of Duty developers:
"Compression and optimization? Let's forget about it!"

Silva
Senior Member



Posts: 1962
Joined: 2013-06-04

#5930710 Posted on: 07/20/2021 03:20 PM
Meanwhile my ISP refuses to upgrade my upload speed beyond 12mb while I have 120mb download...

tsunami231
Senior Member



Posts: 13377
Joined: 2003-05-24

#5930797 Posted on: 07/20/2021 07:59 PM
Meanwhile my ISP refuses to upgrade my upload speed beyond 12mb while I have 120mb download...


Yah i have 400mbit that only 20mbit up, and my isp 1gbit is still 20mbit up an price jump from 400 to 1gbit is extra $40 month, can you image what we would be charge for such speeds? not that we have storage that could even cope with such speeds and even if we did it probably cost limb or 2

SamuelL421
Senior Member



Posts: 259
Joined: 2017-08-22

#5930823 Posted on: 07/20/2021 09:41 PM
Crazy stuff when you stop to consider that even ultra-high end enterprise kit runs around 100-400Gb/s. Obviously this article's tech is geared at ISP usage for backbone or otherwise but it is still insane to think that that sort of throughput is even possible.

Backstabak
Senior Member



Posts: 843
Joined: 2015-11-13

#5930861 Posted on: 07/21/2021 02:14 AM
While impressive speeds its all thanks to their use of 4 core fiber that they have made. While the fiber can be interesting, especially if its commercially viable, its basically a fancy spacial division multiplexing, so not that groundbreaking concept.

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