255 Terabits/s: Researchers demonstrate record data transmission over new type of fiber

October 27, 2014
Researchers demonstrate record data transmission over a specially fabricated fibre

Researchers at Eindhoven University of Technology (TU/e) in the Netherlands and the University of Central Florida (CREOL), report in the journal Nature Photonics the successful transmission of a record high 255 Terabits/s over a new type of fiber allowing 21 times more bandwidth than currently available in communication networks. This new type of fiber could be an answer to mitigating the impending optical transmission capacity crunch caused by the increasing bandwidth demand.

Due to the popularity of Internet services and emerging network of capacity-hungry datacentres, demand for telecommunication bandwidth is expected to continue at an exponential rate. To transmit more information through current optical glass fibers, an option is to increase the power of the signals to overcome the losses inherent in the glass from which the fibre is manufactured. However, this produces unwanted photonic nonlinear effects, which limit the amount of information that can be recovered after transmission over the standard fiber.

The team at TU/e and CREOL, led by dr. Chigo Okonkwo, an assistant professor in the Electro-Optical Communications (ECO) research group at TU/e and dr. Rodrigo Amezcua Correa, a research assistant professor in Micro-structured fibers at CREOL, demonstrate the potential of a new class of fiber to increase and mitigate the impending 'capacity crunch' in their article that appeared yesterday in the online edition of the journal Nature Photonics.

The new fiber has seven different cores through which the light can travel, instead of one in current state-of-the-art fibers. This compares to going from a one-way road to a seven-lane highway. Also, they introduce two additional orthogonal dimensions for data transportation – as if three cars can drive on top of each other in the same lane. Combining those two methods, they achieve a gross transmission throughput of 255 Terabits/s over the fiber link. This is more than 20 times the current standard of 4-8 Terabits/s.

Dr. Chigo Okonkwo: "At less than 200 microns in diameter, this fibre does not take noticeably more space than conventional fibres already deployed. These remarkable results definitely give the possibility to achieve Petabits/s , which is the focus of the European Commission in the coming 7 year Horizon 2020 research programme. The result also shows the key importance of the research carried out in Europe, and in particular at TU/e with other well-known teams around the world in high-capacity systems."

Explore further: Team in Denmark breaks data transmission rate over single fiber cable—43 terabits per second

More information: R.G.H. van Uden et al, Ultra-high-density spatial division multiplexing with a few-mode multicore fibre, Nature Photonics (online, 26 October 2014)
DOI: 10.1038/nphoton.2014.243

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6 comments

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EyeNStein
5 / 5 (1) Oct 27, 2014
At 200 microns I'm glad they are concerned at taking up too much space!
The old copper trunks that fibres are replacing are inches in diameter and laid down on foot wide trunking.
However any advance in 'cable' capacity and ease of installation will be welcome.
Sonhouse
5 / 5 (3) Oct 27, 2014
200 microns is 0.2 millimeters, 1/5th of a mm. So you could get maybe 20 of these cables packed into a circle of one mm diameter or 25 in a square configuration. So that would be over 5000 terabits/second/ mm^2! Hows THAT for compact transmission of data!
Returners
1 / 5 (4) Oct 27, 2014
Queue "the line":

"We'll neeeeever need that much data transmission."

Wireless is limited by bandwidth. Optical fibers have theoretically infinite bandwidth.
Uncle Ira
2.3 / 5 (3) Oct 27, 2014
Queue "the line":

"We'll neeeeever need that much data transmission."

Wireless is limited by bandwidth. Optical fibers have theoretically infinite bandwidth.


When you were seeing your psychologists for your mental condition, did they tell you that you are the genius who knows everything about everything? Why you waste your talents here Cher? Shouldn't you be writing for the Encyclopedium Of Britain or something?
TheGhostofOtto1923
3 / 5 (4) Oct 27, 2014
Queue "the line":

"We'll neeeeever need that much data transmission."

Wireless is limited by bandwidth. Optical fibers have theoretically infinite bandwidth.


When you were seeing your psychologists for your mental condition, did they tell you that you are the genius who knows everything about everything? Why you waste your talents here Cher? Shouldn't you be writing for the Encyclopedium Of Britain or something?
Well he applied for the job but they didnt understand him over there either.
foolspoo
1 / 5 (2) Oct 28, 2014
free market my butt

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