News Optical Data Transmission World Record Broken, 1.8 Petabytes per Second

[Admin]

Researchers with the Technical University of Denmark (DTU) and Chalmers University of Technology in Gothenburg, Sweden, have developed a world-first custom optical chip that can deliver up to 1.8 petabits per second throughputs.

Optical Data Transmission World Record Broken, 1.8 Petabytes per Second : Read more

 

[YouFilthyHippo]

You'd be hard pressed to convince me that global internet traffic is only 900TB/s. With the billions of phones, computers, servers, and big companies, I dont find it likely

 

[Deleted member 2731765]

This one was actually an old news. Around last October 2022 they did this, I suppose. So have they updated something on this now ?

 

[Deleted member 2731765]

Btw, it is an interesting concept at least on paper, nonetheless.

They did this by transferring the data through light by modulating its properties, such as amplitude, phase, and polarization, thereby creating distinct signals that can be converted into either 1s or 0s.

So that's million gigabits per second ! So they can transfer signals by employing them as parallel sources. It also does not lose the characteristics of the comb that is used for spectrally effective data transfer despite the need to amplify the comb copies.

All the "chips" that do the modulation, transmission, reception, and de-modulation are still there, but you've cut out all but one laser from the system. The chip is actually a CW laser.

 

[JarredWaltonGPU]

You'd be hard pressed to convince me that global internet traffic is only 900TB/s. With the billions of phones, computers, servers, and big companies, I dont find it likely

I think there was an error in interpreting the article. My reading is that 1.8 Pbps is twice what the world uses right now, meaning we're at 900 Tbps globally. Which means in a day, roughly 78 exabits of data gets transmitted.

This one was actually an old news. Around last October 2022 they did this, I suppose. So have they updated something on this now ?

I... have no answer. I was not responsible for this story.

 

[Deleted member 2731765]

No worries. I have read this paper/article before, so I was just wondering if there was any new update on this tech or not ? But I couldn't find any updated part from these researchers.

Edit:

Paper's link:

Petabit-per-second data transmission using a chip-scale microcomb ring resonator source - Nature Photonics

A microcomb source based on a silicon nitride ring resonator is shown to support petabit-per-second data transmission over a multicore optical fibre.

www.nature.com

 

[Stesmi]

I think there was an error in interpreting the article. My reading is that 1.8 Tbps is twice was the world uses right now, meaning we're at 900 Tbps globally. Which means in a day, roughly 78 exabits of data gets transmitted.

You mean 1.8Pbps

And yes, that is how I read it as well.

 

[bit_user]

the same data transmission record had been previously broken back in August 2020 with a then-astonishing 178 Tbit/s (Terabits per second) — enough to download Netflix's then-existing catalog in less time than you could count a single Mississippi.

@Francisco Alexandre Pires , where did this stat come from? If you divide 178 Tb (22.25 TB) by the single-layer DVD capacity of 4.7 GB, it's only 4734 discs! I'd bet Netfix probably has hundreds or thousands of times that much content.

the initial design purpose wasn't to break the world's transmission throughput record

Any idea what it was? I'm just wondering what else you'd use such an optical frequency comb for. Multi-spectral imaging?

It's mind-blowing to think about so much information that it could strain a 100 Pbit/s connection

I'd love to know the bisectional bandwidth of a modern datacenter. Because, that's the main application I see - being able to scale up datacenter applications across multiple sites. Exciting times!

 

[JarredWaltonGPU]

@Francisco Alexandre Pires , where did this stat come from? If you divide 178 Tb (22.25 TB) by the single-layer DVD capacity of 4.7 GB, it's only 4734 discs! I'd bet Netfix probably has hundreds or thousands of times that much content.


Any idea what it was? I'm just wondering what else you'd use such an optical frequency comb for. Multi-spectral imaging?


I'd love to know the bisectional bandwidth of a modern datacenter. Because, that's the main application I see - being able to scale up datacenter applications across multiple sites. Exciting times!

Then-existing? Maybe 2020 it had a lot less content. And DVD-only shows on Netflix don't count. So if it's only the stuff available for streaming in 2020, perhaps there wasn't that much stuff. I don't know. I mean, there's this site. That shows that the US Netflix library is currently only 6135 videos, I think.

Even if those were all 4K 20Mbps videos, each 90 minutes long on average, that would be 83TB total capacity. And of course many of those videos are going to be 30 to 60 minutes long, so that could put the current storage capacity at closer to ~40TB.

Netflix would of course have copies of all that data stored all over the world, and different libraries for other countries. But that's a different topic.

 

[bit_user]

Then-existing? Maybe 2020 it had a lot less content. And DVD-only shows on Netflix don't count. So if it's only the stuff available for streaming in 2020, perhaps there wasn't that much stuff. I don't know. I mean, there's this site. That shows that the US Netflix library is currently only 6135 videos, I think.

Even if those were all 4K 20Mbps videos, each 90 minutes long on average, that would be 83TB total capacity. And of course many of those videos are going to be 30 to 60 minutes long, so that could put the current storage capacity at closer to ~40TB.

Netflix would of course have copies of all that data stored all over the world, and different libraries for other countries. But that's a different topic.

Thanks for your thoughtful reply. It was a very specific claim, however. So, I had an expectation that there would be a good source backing it up.

I'm not terribly concerned about it, but it surprised me enough that I thought I'd mention it.

 

[JarredWaltonGPU]

Thanks for your thoughtful reply. It was a very specific claim, however. So, I had an expectation that there would be a good source backing it up.

I'm not terribly concerned about it, but it surprised me enough that I thought I'd mention it.

The source for the claim is from the original 2020 record-breaking speed of 178 Tbps, where the researchers said that was fast enough to DL all of the Netflix catalog:

Researchers Set New Fiber Optic Speed Record of 178 Tbps

Download all of Netflix in less than a second

www.tomshardware.com

UCL engineers set new world record internet speed

The world’s fastest data transmission rate has been achieved by a team of UCL engineers who reached an internet speed a fifth faster than the previous record.

www.ucl.ac.uk

I have no idea if that claim is remotely accurate, though it's probably not too far off. It might have taken two seconds, for example.