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Japan MASHES the record for data transfer rate



Japan MASHES the record for data transfer speeds, reaching 319 terabits per second along an 1864-kilometer optical cable – fast enough to transmit 10,000 HD movies in one second

  • Researchers divided a fiber optic cable into four individual cores to increase speed
  • Then they send data with a laser and divide it into 552 unique light channels
  • These are divided between the cores and sent out along the cable at high speed
  • It’s fast enough to transfer 10,000 HD movies in about one second

Japanese researchers have achieved record-breaking data transfer speeds through a long 1864-mile optical cable, reaching lightning-fast 319 terabits per second.

This is fast enough that you can transfer 10,000 HD movies to about 4 gigabytes each in just one second, even though it will not be available for the average home.

This type of technology is used in the back-end networks of broadband providers and is then shared among hundreds or thousands of customers.

This new record shatters the previous best data rate over a long distance of 172 terabits per second, also set by a team from Japan’s National Institute of Information and Communications (NICT) in Tokyo.

The new system is compatible with existing infrastructure, which means that networks can be easily upgraded, since the cable is the same size, the team explained.

Researchers say that this type of speed will be necessary for back-end infrastructure as services place increasing demands on Internet infrastructure, including through faster speeds from 5G networks, as well as the Internet of Things and streaming.

Data is then transmitted using ‘wavelength division multiplexing’, a technology that captures the data radiated by a laser and divides it into 552 channels.

HOW IT WORKS: SUPER FAST DATA TRANSMISSION OVER LONG DISTANCE

To transmit data over a long distance at super-fast speeds, researchers had to split the data.

They started with a connected quad-core optical fiber cable that was the same size as a regular single-core cable.

Then they divided the data by sending them through a laser and dividing them into 552 different channels.

These were sent down the four optical fiber cores, with boosters laced with rare earth elements that “excite the ions” every 43.5 miles.

In total, each channel transmitted data at about 145 gigabits per second for each of the four cores, or about 580 gigabits per second for all the cores combined.

To achieve the remarkable speed, they took a connected quad-core optical fiber cable, and channeled data long four optical fiber tubes instead of a single tube as normal.

This reduces signal distortion over long distances, and the new technique is similar to the previous record-breaking system, but with a core.

Data is then transmitted using ‘wavelength division multiplexing’, a technology that captures the data radiated by a laser and divides it into 552 channels.

This is then sent down the four optical fiber cores over the 1,864 mile long fiber optic cable, with an amplifier capable each 43.5 miles.

The amplifiers increase the signal strength to keep the transmission loss over a long distance to a minimum.

Unlike previous generation amplifiers, these have been laced with rare earth elements such as thulium and erbium when they act to stimulate ions and increase signal strength.

‘By adding a small amount of rare earth ions to the base material of an optical fiber, amplification can be achieved by spanning these ions with lower wavelength pump lasers and then amplifying signal photons through stimulated discharge,’ they said.

‘Such amplifiers have significantly increased the transmission range for fiber optic communication and allowed amplification of many wavelength channels simultaneously.’

In total, each channel transmitted data at about 145 gigabits per second for each of the four cores, or about 580 gigabits per second for all the cores combined.

With 552 transmission channels, this allowed them to achieve the record setting speed of 319 terabits.

Despite all the extra cladding for the four cores, it has the same diameter as a standard single core optical fiber cable.

This is “attractive for early adoption of the fibers in high throughput, long-distance links,” according to the researchers.

This is fast enough that you can transfer 10,000 HD movies at about 4 gigabytes each in just one second, even though it will not be available for the average home.

This is fast enough that you can transfer 10,000 HD movies at about 4 gigabytes each in just one second, even though it will not be available for the average home.

This is because it is compatible with conventional cable infrastructure.

They are now working to increase transmission capacity, expand the range and make it faster to match potential demand as the world moves beyond 5G.

‘Beyond 5G, an explosive increase is expected from new data services, and it is therefore important to demonstrate how new fibers can meet this demand,’ they said.

‘It is hoped that this result will help realize new communication systems that can support new bandwidth hungry services.’

The results were presented at the international conference on fiber optic communication.




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