Ultra-high-density spatial division multiplexing with a few-mode multicore fibre

R.G.H. Uden, van, Rodrigo Amezcua-Correa, E. (Enrique) Antonio-Lopez, F.M. Huijskens, Cen Xia, G. Li, A. Schülzgen, H. Waardt, de, A.M.J. Koonen, C.M. Okonkwo

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Single-mode fibres with low loss and a large transmission bandwidth are a key enabler for long-haul high-speed optical communication and form the backbone of our information-driven society. However, we are on the verge of reaching the fundamental limit of single-mode fibre transmission capacity. Therefore, a new means to increase the transmission capacity of optical fibre is essential to avoid a capacity crunch. Here, by employing few-mode multicore fibre, compact three-dimensional waveguide multiplexers and energy-efficient frequency-domain multiple-input multiple-output equalization, we demonstrate the viability of spatial multiplexing to reach a data rate of 5.1 Tbit s-1 carrier-1 (net 4 Tbit s-1 carrier-1) on a single wavelength over a single fibre. Furthermore, by combining this approach with wavelength division multiplexing with 50 wavelength carriers on a dense 50 GHz grid, a gross transmission throughput of 255 Tbit s-1 (net 200 Tbit s-1) over a 1 km fibre link is achieved.
Original languageEnglish
Pages (from-to)865-870
JournalNature Photonics
Issue number11
Publication statusPublished - 2014


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