Featured Articles

IHS teardown reveals Galaxy S5 BOM

IHS teardown reveals Galaxy S5 BOM

Research firm IHS got hold of Samsung’s new flagship smartphone and took it apart to the last bolt to figure out…

Galaxy S5, HTC One M8 available selling well

Galaxy S5, HTC One M8 available selling well

Samsung’s Galaxy S5 has finally gone on sale and it can be yours for €699, which is quite a lot of…

Intel lists Haswell refresh parts

Intel lists Haswell refresh parts

Intel has added a load of Haswell refresh parts to its official price list and there really aren’t any surprises to…

Respawn confirms Titanfall DLC for May

Respawn confirms Titanfall DLC for May

During his appearance at PAX East panel and confirmed on Twitter, Titanfall developer Respawn confirmed that the first DLC pack for…

KFA2 GTX 780 Ti Hall Of Fame reviewed

KFA2 GTX 780 Ti Hall Of Fame reviewed

KFA2 gained a lot of overclocking experience with the GTX 780 Hall of Fame (HOF), which we had a chance to…

Frontpage Slideshow | Copyright © 2006-2010 orks, a business unit of Nuevvo Webware Ltd.
Tuesday, 24 May 2011 09:44

German boffins create data transfer speed record

Written by Nick Farell

Faster than a speeding bullet
German boffins have created a new speed record for data using fibre-optic cable.

Researchers at Karlsruhe Institute of Technology in Germany packed up 26 terabits of data and stuffed it down an optical fibre in one second. According to the journal Nature Phonetics which we bought thinking it was a nudist magazine,  Wolfgang Freude used a 'fast Fourier transform' to separate more than 300 colours of light in a laser beam, each encoded with its own string of information.

Early optical fibre technologies encoded data as 'wiggles' within a single colour of light but in recent years a number of other methods have been used to increase speeds. The method used by the German researchers was called 'orthogonal frequency division multiplexing', for example, uses a number of lasers to encode strings of data on different colours of light then sends them through the fibre together. At the receiving end, another set of laser oscillators is used to reverse the process. Using this method the rate at which date can be transferred is limited only by the number of lasers used, the study said.

Nick Farell

E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
blog comments powered by Disqus


+18 #1 gzilirion 2011-05-24 10:15
The whole point of this discovery is that it can be done with single laser and thus reducing energy consumption & complexity. Learn to read!

"The problem was they didn't have just one laser, they had something like 370 lasers, which is an incredibly expensive thing. If you can imagine 370 lasers, they fill racks and consume several kilowatts of power.

Professor Freude and his colleagues have instead worked out how to create comparable data rates using just one laser with exceedingly short pulses."
-2 #2 crackerz 2011-05-24 12:52
26 terabits? damn and I'm still struggling with adsl line(24mbps.. and its more close to real ~14mbps)

P.S. and a pathetic 800-900kbps upload
+7 #3 thaad 2011-05-24 13:51
26 terabits / sec = 3250 Gigabyte / sec

That horible...... Nice job!
-1 #4 darkpulse 2011-05-24 16:35
OMG! Imagine how much i could download with that kind of speed..... :o :o

Hmmmmmm nevertheless, i must say it would even send my electricity bill SOARING too...... :o :cry: :lol:
+1 #5 TechHog 2011-05-25 01:58

This must become commercial some day soon.
0 #6 Hobgoblin 2011-05-25 03:20
@gzilirion: Actually using a single laser is also quite problematic, you need immense clock speeds in order to transfer the same amount of information, it's the old parallel vs serial trade off. In the end, a bit of both is most practical.

Using a single laser, and assuming binary transfer, as well as binary prefix on the data rates (tera = 2^40, rather than 10^12), the clock rate needed to process the data at the same speed on the receiving end is about 28.6 THz, or if the rate was decimal, then 26 THz.

If they were using a non-binary transmission property (likely), then you multiply by 2 / the number of states. More laser colours? Divide that rate by the number of colours. Use multiple fibers? Divide the rate again.
0 #7 Stewox 2011-05-25 16:37
This won't be anywhere soon , simply because 26 terabits = 3 407 872 megabyte = 3328 Gigabytes.

The current avreage Hard Drive Write speed is 80 MB/s , with SSD that would range from 150-250-500 MB/s in the coming future, maximum 750MB/s in the next 5 years.

Less than a single gigabyte, where's 3328th gigabyte?
+1 #8 Kakkoii 2011-05-25 18:40
Quoting Stewox:
The current avreage Hard Drive Write speed is 80 MB/s , with SSD that would range from 150-250-500 MB/s in the coming future, maximum 750MB/s in the next 5 years.

While I agree this will be useless to the home user for some time to come, you're a bit wrong about SSD's..

We already have consumer SSD's that do over 1.5GB/s transfer, and business ones that do over 6GB's a second. Check out the company Fusion IO.

But yeah, still nowhere near this. But this technology will help decrease the cost of data transfer back-end of service providers. Helping increase general transfer speeds for consumers.

To be able to post comments please log-in with Disqus


Facebook activity

Latest Commented Articles

Recent Comments