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Information traffic demands have increased dramatically in recent years, leading to the so called “Capacity Crunch” in optical fiber. There are two possible ways to solve this problem. The first is using Space Division Multiplexing to increase the capacity. This requires setting up a completely new infrastructure with multimode fibers. The second is to improve the capacity of the current infrastructure...
The systems employing nonlinear Fourier transform (NFT) as a method of nonlinearity mitigation have recently become the subject of intensive study (see e.g. [1-4] and references therein). In particular the so-called nonlinear inverse synthesis (NIS) method was proposed in [2]. Within this method the data is modulated using the continuous part of the NFT spectrum. Then the time domain waveform is generated...
Due to the so-called capacity crunch, an increasing number of research have been focused on the subject of efficient signalling on nonlinear optical fibres and particularly methods based on nonlinear Fourier transform (NFT) [1-6]. This field of research includes the design of optical transmission using discrete spectrum, continuous spectrum (CS) [1], and combination of all degrees of freedom [2]....
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