A chip that transmits all Internet traffic in a second

A chip that transmits all Internet traffic in a second

More speed chap? The new chip design delivers ultra-fast data transfer rates of 1.84 Pbps… and the fastest possible

The data transfer speed record has been broken again by researchers in Denmark and Sweden.

The researchers used a single light source and an optical chip to transmit data at a speed of 1.84 petabits per second (Pbit/s), which is nearly double global Internet traffic per second.

Achieving 1.84 Pbit/s is quite impressive. To understand just how fast, most people’s homes in the UK can achieve speeds sometimes as high as 240 megabits per second (Mbps). A lucky few, for example those associated with B4RN . project or full fiber links, can check Speeds up to 1 Gbps or sometimes Up to 10 Gbps.

world record

For context, 1 petabit corresponds to one million gigabits.

So who achieved this? Well, perhaps not surprisingly, they are researchers at the Technical University of Denmark (DTU) in Denmark, along with researchers from Chalmers University of Technology (in Gothenburg, Sweden).

last week announced They have achieved amazing data transfer speeds.

They said they were the first to transmit more than 1 petabit per second (Pbit/s) using only one laser and one optical chip.

In the experiment, the researchers succeeded in transmitting 1.8 Pbit/s, which is twice the total global Internet traffic.

This was only transmitted by light from a single optical source. The researchers said the light source is a specially designed optical chip, which can use the light from a single infrared laser to create a rainbow spectrum of many colors, that is, many frequencies.

Thus, a single frequency (color) of a single laser can be multiplied by hundreds of frequencies (colors) in a single chip.

All colors are fixed at a specific frequency distance from each other – just like the teeth on a comb – which is why it is called a frequency comb.

Each color (or frequency) can then be isolated and used to print the data. The frequencies can then be recombined and transmitted over an optical fiber, thereby transmitting data. Even a huge amount of data, the researchers discovered.

The researchers said the demo showed that a single chip could easily carry 1.8 Pbit/s, which – with state-of-the-art commercial equipment – would otherwise require more than 1,000 lasers.

“What sets this chip apart is that it produces a frequency comb with ideal characteristics for fiber-optic communications – it has high optical power and covers a wide frequency range within the spectral region of interest for advanced optical communications,” a professor at Chalmers University of Technology, who is the head of the research group that developed and manufactured the chip. .

More speed MP?

Interestingly, the researchers note, the chip has not been optimized for this particular application.

“In fact, some of the distinguishing standards were achieved by chance rather than by design,” said Victor Torres. “However, through the efforts of my team, we are now able to reverse-engineer the process and investigate with highly repeatable micropoms for targeted applications in telecommunications.”

The researchers devised a computational model to examine the basic capabilities of data transmission theoretically using a single chip similar to that used in the experiment.

The researchers said the calculations showed huge potential for scaling up the solution.

“Our calculations show that – with a single chip made by Chalmers University of Technology, and with a single laser – we will be able to transmit up to 100 Pbit/s,” said Professor Leif Katsu Oxenloy, Head of the Center of Excellence for Silicon. Photonics for Optical Communications (SPOC) at DTU.

“The reason for this is that our solution is scalable – both in terms of generating many frequencies and in terms of dividing the frequency comb into many spatial copies and then amplifying them optically, using them as parallel sources through which we can transmit data,” said Professor Oxenløwe.

“Although comb transcription must be amplified, we do not lose the properties of the comb, which we use to transmit data with spectral efficiency,” said Professor Oxenløwe.

Previous records

This new record represents a massive increase in speed over previous records.

Remember that only in 2012 researchers in Germany said they broke the data transfer speed record, When they send data at 512 Gbps From Berlin to Hanover and back.

But before that, 26 terabytes per second was apparently set by a Team at Karlsruhe Institut fur Technologie in Germany in 2011.

Then in 2014, researchers at the Technical University of Denmark (DTU) regained their world record for data transfer Using a single laser by setting a new standard of 43 terabytes per second.

In July 2021, engineers from Japan’s National Institute of Information and Communication Technology (NICT) set a world record when they demonstrated Long-distance data transmission at a speed of 319 terabytes per second over 3,001 km (1,864 mi).

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