255 Terabits/s over fibre link 

Created December 16, 2014
News and Business

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

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 fibres at CREOL, demonstrate the potential of a new class of fibre to increase transmission capacity and mitigate the impending ‘capacity crunch’ in their article.

The new fibre has seven different cores through which the light can travel, instead of one in current state-of-the-art fibres. 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 fibre 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, supported by the European Union Framework 7, MODEGAP, definitely give the possibility to achieve Petabits/s transmission, 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 optical transmission systems.”

By Per Danielsen 

Per Danielsen

This article was written
by Per Danielsen

has 35 years of experience in optical communications and is now working freelance writing about optical communications and other telecom related topics. He also serves as chairman of the ECOC Market Focus program committee.