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In this paper, we review emerging technologies to build up Tb/s per channel transmission capacity. The different approaches, mainly based on various implementations of orthogonal frequency division multiplexing, Nyquist wavelength division multiplexing and optical time division multiplexing, are introduced and compared with respect to complexity, spectral efficiency and transmission reach. In addition...
We investigate the impact of ultra-narrow carrier spacing on the transmission of a 1Tb/s superchannel comprising 10 ?? 100 Gb/s PM-QPSK carriers. We demonstrate 2200 km over installed SMF fibre with a carrier spacing of 1.1 the Baud rate.
The use of standard 1-mm core-diameter step-index plastic optical fiber (SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates in the order of 100 Mbit/s. By use of digital signal processing, transmission performance of such optical links can be improved. Among the different technical solutions proposed, a promising one is based on the use of discrete multitone (DMT) modulation,...
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