Navigation Links
World record in ultra-rapid data transmission
Date:5/23/2011

This release is available in German.

Scientists of Karlsruhe Institute of Technology (KIT) have suc-ceeded in encoding data at a rate of 26 terabits per second on a single laser beam, transmitting them over a distance of 50 km, and decoding them successfully. This is the largest data volume ever transported on a laser beam. The process developed by KIT allows to transmit the contents of 700 DVDs in one second only. The renowned journal "Nature Photonics" reports about this success in its latest issue (DOI: 10.1038/NPHOTON.2011.74).

With this experiment, the KIT scientists in the team of Professor Jrg Leuthold beat their own record in high-speed data transmission of 2010, when they exceeded the magic limit of 10 terabits per sec-ond, i.e. a data rate of 10,000 billion bits per second. This success of the group is due to a new data decoding process. The opto-electric decoding method is based on initially purely optical calculation at highest data rates in order to break down the high data rate to smaller bit rates that can then be processed electrically. The initially optical reduction of the bit rates is required, as no electronic processing methods are available for a data rate of 26 terabits per second.

The team of Leuthold applies the so-called orthogonal frequency division multiplexing (OFDM) for record data encoding. For many years, this process has been used successfully in mobile communi-cations. It is based on mathematical routines (Fast Fourier Trans-formation). "The challenge was to increase the process speed not only by a factor of 1000, but by a factor of nearly a million for data processing at 26 terabits per second," explains Leuthold who is heading the Institutes of Photonics and Quantum Electronics and Microstructure Technology at KIT. "The decisive innovative idea was optical implementation of the mathematical routine." Calculation in the optical range turned out to be not only extremely fast, but also highly energy-efficient, because energy is required for the laser and a few process steps only.

"Our result shows that physical limits are not yet exceeded even at extremely high data rates", Leuthold says while having in mind the constantly growing data volume on the internet. In the opinion of Leuthold, transmission of 26 terabits per second confirms that even high data rates can be handled today, while energy consumption is minimized.

"A few years ago, data rates of 26 terabits per second were deemed utopian even for systems with many lasers." Leuthold adds, "and there would not have been any applications. With 26 terabits per second, it would have been possible to transmit up to 400 million telephone calls at the same time. Nobody needed this at that time. Today, the situation is different." Video transmissions predominate on the internet and require extremely high bit rates. The need is growing constantly. In communication networks, first lines with channel data rates of 100 gigabits per second (corresponding to 0.1 terabit per second) have already been taken into operation. Re-search now concentrates on developing systems for transmission lines in the range of 400 Gigabits/s to 1 Tbit/s. Hence, the Karlsruhe invention is ahead of the ongoing development. Companies and scientists from all over Europe were involved in the experimental implementation of ultra-rapid data transmission at KIT. Among them were members of the staff of Agilent and Micram Deutschland, Time-Bandwidth Switzerland, Finisar Israel, and the University of Southampton in Great Britain.


'/>"/>

Contact: Monika Landgraf
presse@kit.edu
49-721-608-47414
Helmholtz Association of German Research Centres
Source:Eurekalert  

Related medicine news :

1. Setting up cervical cancer screening programmes in the developing world
2. Model developed to improve combination vaccine accessibility worldwide
3. Online Gaming With Real-World Friends Is Healthier: Study
4. Success of First World Congress of Pediatric Urology underscores increasing importance of specialty
5. Changing trends in hip fracture incidence around the world
6. What the world needs now? More wisdom
7. Alfred B. Knight, M.D., Scott & White Healthcare, presents at 8th Annual World Health Care Congress
8. EMMA milestone beams its way to a world first
9. The BCG World Atlas: a world first in the fight against tuberculosis
10. Diabetes Surgery 2nd World Congress
11. BMC doctor recognized by World Health Organization for pulse oximetry training video
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
World record in ultra-rapid data transmission 
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is World ... with chronic pain and the benefits of holistic treatments, Serenity Recovery Center ... with Sickle Cell Disease. , Sickle Cell Disease (SCD) is a disorder of the ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... Global law ... magazine’s 2016 Legal Elite. The attorneys chosen by their peers for this recognition are ... , Seven Greenberg Traurig Shareholders received special honors as members of this year’s Legal ...
(Date:6/24/2016)... ... , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway Pain Relief Products, join The ‘Business ... to $12 an hour by 2020 and then adjusting it yearly to increase at the ... minimum wage, assure the wage floor does not erode again, and make future increases more ...
(Date:6/24/2016)... ... June 24, 2016 , ... The Haute Beauty ... Barry M. Weintraub as a prominent plastic surgeon and the network’s newest partner. ... and the most handsome men, look naturally attractive. Plastic surgery should be invisible.” ...
(Date:6/24/2016)... ... June 24, 2016 , ... National recruitment firm Slone Partners ... with extensive sequencing and genomics experience, as Vice President of North American Capital Sales ... be responsible for leading the sales team in the commercialization of the HTG EdgeSeq ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016 The Academy of Managed Care ... that would allow biopharmaceutical companies to more easily ... make formulary and coverage decisions, a move that addresses ... medicines. The recommendations address restrictions in the ... the drug label, a prohibition that hinders decision makers ...
(Date:6/24/2016)... Mass. , June 24, 2016   Pulmatrix, ... pharmaceutical company developing innovative inhaled drugs, announced today that ... Russell Investments reconstituted its comprehensive set of ... "This is an important milestone for Pulmatrix," ... will increase shareholder awareness of our progress in developing ...
(Date:6/23/2016)... 2016 Any dentist who has made an implant ... process. Many of them do not even offer this as ... high laboratory costs involved. And those who ARE able to ... a high cost that the majority of today,s patients would ... Parsa Zadeh , founder of Dental Evolutions Inc. and inventor ...
Breaking Medicine Technology: