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Telecommunications


RECORD-BREAKING FIBER TRANSMITS 20X GLOBAL INTERNET TRAFFIC PER SECOND

By Michael Irving
December 03, 2023
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Record-breaking fiber transmits 20x global internet traffic per second


A new optical fiber system has shattered the data transmission speed record
Depositphotos
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A new optical fiber system has shattered the data transmission speed record
Depositphotos


Everybody feels like they could use a faster internet connection, and now
engineers in Japan have shattered the record for data transmission. The team
managed to transmit more than 20 times the global internet traffic per second
through a single optical fiber.



If you’re one of the lucky few people to be connected to the world’s fastest
consumer internet connection, you’ll be enjoying a breezy 10 gigabits per second
(Gb/s). A bigger group is running a 1-Gb/s connection, while most of us get by
on a few hundred megabits per second.

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But now, Japan’s National Institute of Information and Communications Technology
(NICT) has clocked an absolutely insane data transmission rate of 22.9 petabits
per second. To put that in perspective, a petabit is one million gigabits, so
that’s fast enough to transmit the entire internet’s second-by-second traffic 22
times over with bandwidth left over. Even NASA only gets 46 terabits per second,
or 0.046 Pb/s.

To reach this milestone, NICT took advantage of a few emerging technologies.
Instead of just one core for transmitting data, the cable contains 38, each of
which can transmit data in three modes for a total of 114 spatial channels. Each
mode in each spatial channel is made up of 750 wavelength channels across three
bands (S,C and L), for a bandwidth of 18.8 THz.



Altogether, that adds up to a data transmission rate of 22.9 Pb/s, which is more
than twice the previous record, set in 2020. The team says that optimizing the
error correction could allow the system in its current form to reach speeds of
up to 24.7 Pb/s.

However, don’t expect to be streaming the entirety of Netflix in fractions of a
second in the near future. Decoding the data involves complex signal processing,
which would require specialized devices called MIMO receivers to be installed
throughout networks. In the shorter term, a four-core version that only
transmits data in one mode per core is compatible with existing infrastructure,
and still manages a respectable data speed of over 1 Pb/s.

The research was presented at the European Conference on Optical Communication
in Scotland in October.



Source: NICT


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TAGS

TelecommunicationsDataData TransferTransmissionWorld's
FastestCommunicationsFiber OpticOptics
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2 comments
Michael Irving
Michael has always been fascinated by space, technology, dinosaurs, and the
weirder mysteries of the universe. With a Bachelor of Arts in Professional
Writing and several years experience under his belt, he joined New Atlas as a
staff writer in 2016.


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2 comments
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published.
Mark R Windsor December 4, 2023 11:29 AM
"20 times the global internet traffic per second" - the "per second" is
redundant - in fact just wrong.
Why is the mistake so often made, e.g. "enough energy from the wind farm to
supply 2000 houses per year". No, not "per year". That energy is continuously
supplied until the wind farm dies, supplying the energy for 2000 houses every
second and every year.
Michael Irving December 4, 2023 02:36 PM
@Mark R Windsor: The "per second" is key to the whole thing – we're talking
about data transmission rates here, which are literally measured in
(mega/giga/tera/peta)bits per second. Also global internet traffic is a fluid
thing to measure, so we need to break it down into understandable chunks - in
the space of one second, this fiber could transmit 22x more data than the global
internet traffic from that same second.
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