Friday, 31 October 2014

Petabit per second transmission achieved in NEC lab over single Corning fibre

NEC, Corning claim petabit transmission over a single optical fibre
January 17, 2013

NEC Corporation of America and optical fiber provider Corning Inc. (NYSE:GLW) claim to have achieved a new record for the transmission capacity over optical fibre.

Researchers from NEC Labs in Princeton, NJ, and from Corning's Sullivan Park Research Center in Corning, NY, have successfully demonstrated ultra-high speed transmission with a capacity of 1.05 Pbps (1015 Terabits per second) over novel multi-core fiber (MCF) that contains 12 single-mode and two few-mode cores. The transmission employed a space-division multiplexing (SDM) scheme and an optical multiple-input multiple-output (MIMO) signal processing technique.

Designed by Corning researchers, the fibre has cores arranged in a triangular lattice, which enables transmission over a large number of spatial modes. By combining spectral multiplexing with polarization and spatial mode multiplexing and employing multilevel modulation formats, NEC researchers achieved a total spectral efficiency of 109 bits/sec/Hz.
The aggregate transmission capacity of 1.050 Pbps is the highest capacity over a single optical fiber reported so far, the researchers claim. This achievement is a continuation of NEC's leadership in ultra-high optical transmission systems.

"We recently demonstrated the highest capacity over singlemode optical fibres, and now we have opened new frontiers with the highest transmission capacity over any type of optical fibres" said Dr. Ting Wang, head of optical networking research at NEC Laboratories America.

"We are proud to lead industry efforts with Corning and to provide solutions that will be the foundation of the next generation of networking." "As the foundation of telecommunications networks, optical fibre innovation enables carriers to cost-effectively keep up with ever-growing traffic demands," said Cynthia B. Giroux, division vice president and research director, Corning.

This new advance in optical fibres with 14 transmission cores is a continuation of Corning's longstanding leadership in optical fibre innovation."

The research was originally reported at the 2012 Frontiers in Optics/Laser Science XXVIII (FiO/LS) meeting in Rochester, NY, in October 2012.

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