Japan sets new world record with Internet speed of 319 terabits per second

Shawn Knight

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Editor's take: A team of researchers from the National Institute of Information and Communication Technology (NICT) in Japan have blown the old Internet speed record of 178 terabits a second out of the water. The new record? An eye-watering 319 terabits per second. It took some ingenuity and tweaking to get it working, but the good news is that the new fiber optics are compatible with existing equipment, meaning it might not be too difficult to retrofit existing lines.

To achieve this feat, the researchers (led by led by Benjamin J. Puttnam) built a transmission system that fully utilizes wavelength division multiplexing technology by combining different amplifier tech.

Their four-core optical fiber (with a standard outer diameter of 0.125 mm) stretched 69.8 km and was looped 43 times for a final transmission distance of 3,001 km, or roughly 1,865 miles.

The research paper on the matter goes into much greater detail if you’re into that sort of thing, and involves the use of rare earth ions and lasers. It sounds equal parts complicated and awesome, assuming of course that you can make sense of it all.

The combined >120nm transmission bandwidth allowed 552 wavelength-division multiplexed channels by adopting 2 kinds of doped-fiber amplifier together with distributed Raman amplification, to enable recirculating transmission of the wideband signal.

The team said the optical fiber they used can be cabled with existing equipment. The hope, they added, is that the breakthrough can enable practical, high data-rate transmission in the near future, perhaps as a next step beyond 5G.

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This reminds me of an OG online game called "Operation Overkill".

I mean, 319Tb/s??? That's more than 1200x the theoretical top speed of PCI-Express v4.0! Where did they find a CPU that could process the data that fast?

Well, we know what's in the pipeline don't we? :laughing:
 
Bloody hell, that's roughly 40 terabytes a second! What even is the use of such prodigious speeds? Cloud gaming at 4k?
 
Hmm. I was in Okinawa for 4 years when I was young, and I don't think any of my friends from Japan had a name even close to that :D
So what you're saying is that only people with Japanese names do research in Japan? Lots of researchers move to various countries where they can best utilize their skills.
 
This reminds me of an OG online game called "Operation Overkill".

I mean, 319Tb/s??? That's more than 1200x the theoretical top speed of PCI-Express v4.0! Where did they find a CPU that could process the data that fast?

Well, we know what's in the pipeline don't we? :laughing:
This isn't consumer tech. They're not running fiber into the back of a decked out RGB gamer box to run these tests. This is the tech they use at the internet backbone layer. They're using equipment that can service tens of thousands of customers or more. So yeah, this isn't coming "in the pipeline" as you put it, unless you're a big telco or internet provider.
 
So what you're saying is that only people with Japanese names do research in Japan? Lots of researchers move to various countries where they can best utilize their skills.
I know. I stood Guard while some of them was doing it. See the big grin smiley I posted afterwards? I will let you research for yourself about why its there.

I'm pullin for ya!!
 
This isn't consumer tech. They're not running fiber into the back of a decked out RGB gamer box to run these tests. This is the tech they use at the internet backbone layer. They're using equipment that can service tens of thousands of customers or more. So yeah, this isn't coming "in the pipeline" as you put it, unless you're a big telco or internet provider.
WTF are you talking about? Who said anything about gamer tech? What do you think, that I'm some kinda noob? I'm thinking of the top-level EPYC CPUs here! Of course I realise that this will not be a single capillary connection, it will be a main data artery that goes to thousands of individual computers and when I say "It's in the pipleline" I'm talking about it as upcoming tech, not the next new thing for consoles! (DUH)

I was just wondering how they were able to test it as such because that test WOULD require a single connection. So, your undue snark aside, my question is still a valid one.
 
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