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With 319 Tb/s, Japan Absolutely Smashes World Record For Data Transmission Speed
https://www.sciencealert.com ^ | July 16, 2021 | MICHELLE STARR

Posted on 07/16/2021 9:05:21 AM PDT by Red Badger

New technology developed by Japanese engineers has walloped the heck out of the previous data transmission speed record.

Along an optical cable more than 3,000 kilometers (1,864 miles) long, the team achieved a data transmission speed of 319 terabits per second (Tb/s).

This not only smashes the previous record of an already jaw-dropping 178 Tb/s, the technology is compatible with existing infrastructure, which means that it could be upgraded relatively easily.

The new record was set by a team of scientists and engineers led by physicist Benjamin Puttnam of Japan's National Institute of Information and Communications Technology (NICT), and builds on previous work in which NICT participated, achieving speeds of 172 Tb/s, announced last year.

That achievement used a coupled three-core optical fiber, a technology that channels data along three optical fiber tubes rather than one as is currently standard, in order to reduce signal distortion over long distances. The 319-terabit speed used similar technology, but with four cores.

Schematic diagram of the system. (NICT)

The data is transmitted using technology called wavelength-division multiplexing. It is beamed from a laser that splits the signals into 552 channels, and sends it down the four optical fiber cores.

At 70-kilometer (43.5 mile) intervals along the fiber, amplifiers boost the strength of the signal to keep transmission loss at a minimum over long distances. These amplifiers are two new kinds doped with the rare earth elements thulium and erbium.

Overall, the average data rate per channel was around 145 gigabit per second for each core, and around 580 gigabits per second for all four cores combined. That's still insanely fast, all things considered.

The record-setting 319-terabit speed was achieved at the maximum 552 wavelength channels.

The cladding for the four optical fiber cores together has the same diameter as standard single-core optical fiber, which "is attractive for early adoption of SDM fibers in high-throughput, long-distance links, since it is compatible with conventional cable infrastructure and expected to have mechanical reliability comparable to single-mode fibers," the researchers noted.

The team plans to continue work on their long-distance data transmission system, to try to both increase transmission capacity, and extend the transmission range.

The team's paper was presented at the International Conference on Optical Fiber Communications in June.


TOPICS: Arts/Photography; Business/Economy; Computers/Internet; History
KEYWORDS: bandwidth
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1 posted on 07/16/2021 9:05:21 AM PDT by Red Badger
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To: ShadowAce; dayglored; Swordmaker

TECH PING!.............


2 posted on 07/16/2021 9:05:54 AM PDT by Red Badger (Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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To: Red Badger

PORN PING! (jk)


3 posted on 07/16/2021 9:10:09 AM PDT by John Milner (Marching for Peace is like breathing for food. )
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To: Red Badger

The ISPs will fight tooth and nail to keep snail speed performance.


4 posted on 07/16/2021 9:12:32 AM PDT by wally_bert (I cannot be sure for certain, but in my personal opinion I am certain that I am not sure.)
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To: Red Badger
"Send us your cat pictures."

"Sir! All of them?"

"All of them. For great justice."

5 posted on 07/16/2021 9:14:14 AM PDT by Billthedrill
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To: wally_bert

“The ISPs will fight tooth and nail to keep snail speed performance.”

My speed tests say otherwise.


6 posted on 07/16/2021 9:16:43 AM PDT by TexasGator (UF)
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To: Red Badger

Of course you’ll need new iPhones and ‘puters to utilize that blazing speed.

But you’ll be able to hear, see and atomically alter the pin before it hits the floor and you hear it.. or not.


7 posted on 07/16/2021 9:18:04 AM PDT by NormsRevenge (Semper Fi - Monthly Donors Rock!!! In CONgre$$ WE're Disgusted!!)
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To: Red Badger

8 posted on 07/16/2021 9:23:32 AM PDT by Yo-Yo (is the /sarc tag really necessary?)
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To: Billthedrill

That’s a fine scenario, but it will really play out like this:

DOJ: “Send us your evidence of insurrection, systemic racism, and white supremacy.”

NSA: “All of it?”

DOJ: “All of it. For great justice.”


9 posted on 07/16/2021 9:24:06 AM PDT by ProtectOurFreedom (“Criminal democrats kill babies, folks. Do you think anything else is a problem for them?” ~ joma89)
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To: rdb3; JosephW; martin_fierro; Still Thinking; zeugma; Vinnie; ironman; Egon; raybbr; AFreeBird; ...

10 posted on 07/16/2021 9:24:40 AM PDT by ShadowAce (Linux - The Ultimate Windows Service Pack )
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To: Red Badger

Thulium is my favorite part of The Element Song by Tom Lehrer.


11 posted on 07/16/2021 9:28:05 AM PDT by who_would_fardels_bear (This is not a tagline.)
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To: ShadowAce

Wow

The olympics are already going.


12 posted on 07/16/2021 9:29:37 AM PDT by blueunicorn6 ("A crack shot and a good dancer”)
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To: Red Badger

The is not that big a deal for two reasons:

1. There is currently no shortage of bandwidth
2. To employ this technology you have to replace existing fiber.


13 posted on 07/16/2021 9:29:54 AM PDT by Mariner (War Criminal #18)
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To: John Milner

it’s tech porn...


14 posted on 07/16/2021 9:35:04 AM PDT by Chode (there is no fall back position, there's no rally point, there is no LZ... we're on our own. P144:1)
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To: wally_bert

I was thinking more along the lines of datacenter performance and enterprise-level backups.


15 posted on 07/16/2021 9:39:17 AM PDT by ShadowAce (Linux - The Ultimate Windows Service Pack )
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To: Red Badger
319 TBs/sec...

That's a lot of weird/creepy anime...

16 posted on 07/16/2021 9:48:40 AM PDT by Sicon ("All animals are equal, but some animals are more equal than others." - G. Orwell)
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To: Red Badger

That’s a lotta pron.


17 posted on 07/16/2021 9:48:46 AM PDT by Still Thinking (Freedom is NOT a loophole!)
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To: ShadowAce

That’s way faster than the best server’s bus speeds. No we can connect memory from here, processing cores from there, and build computing devices as big as the world.


18 posted on 07/16/2021 9:51:25 AM PDT by Alas Babylon! ("You, the American people, are my only special interest." --President Donald J. Trump)
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To: Red Badger
I miss my Japan internet speed. Starting back around 2008, I had fiber optic for about $40/month. What I have is about dial-up speed 😟
19 posted on 07/16/2021 10:28:39 AM PDT by Bikkuri (If you're conservative, you're an "extremist." If you're liberal, you're an "activist.")
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To: Bikkuri
"What I have " NOW

(just woke up :P )
20 posted on 07/16/2021 10:34:06 AM PDT by Bikkuri (If you're conservative, you're an "extremist." If you're liberal, you're an "activist.")
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