Dual-polarization nonlinear Fourier transform-based optical communication system

Gaiarin, Simone; Perego, Auro M.; Silva, E. P. da; Ros, Francesco Da; Zibar, Darko

doi:10.1364/optica.5.000263

Cited by 129 publications

(88 citation statements)

References 46 publications

(58 reference statements)

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“…At the receiver, the NFT is applied to the received signal for transformation into the nonlinear spectral domain. The estimation of the differential informationφ d,k andθ k is done according to (25) and (26). For estimating the common informationφ c,k and∆t according to (27), we still use the MBR equalization.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Our precoding scheme is generally applicable to multi-solitons. Therefore we secondly adapt our simulation to the experimental second order soliton transmission scheme in [25], where only phases of b 1 (λ k ) and b 2 (λ k ) are independently QPSK modulated.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…(b) Variance of phase estimation error for detection ofφ 1,k andφ 2,k via MBR (15) andφ c,k andφ d,k via differential decoding (25), (27) fixed to |b i (λ 1 )| = 0.14 and |b i (λ 2 )| = 5. The resulting soliton's pulse duration is approximately…”

Section: B Phase Modulation For Second Order Solitonmentioning

confidence: 99%

“…Dual polarization continuous spectrum modulation was investigated in [22] and polarization-division multiplexed eigenvalue modulation was introduced in [23]. QPSK phase modulation of two eigenvalues has been experimentally demonstrated in [24], [25] for an EDFA fiber link up to 747km.…”

Section: Introductionmentioning

confidence: 99%

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Efficient Precoding Scheme for Dual-Polarization Multi-Soliton Spectral Amplitude Modulation

Span

Aref

Bülow

et al. 2019

IEEE Trans. Commun.

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Spectral amplitude modulation for dual-polarization multi-soliton transmission is considered. We show, that spectral amplitudes become highly correlated during propagation along a noisy fiber link.Thus, joint equalization is generally needed at the receiver.We propose a simple precoding scheme to almost remove these correlations. It significantly improves the detection performance even without any complex equalization. The spectral amplitudes are transformed into pairs of common and differential information part. We show, that the differential part is almost preserved along the link, even in the presence of noise. Thus, it can be detected directly from the received spectral amplitudes with high reliability. Using the precoding, disjoint detection of the common and the differential part causes only a small performance loss.We analyze our precoding and verify its performance gain in Split-Step-Fourier simulations by comparing it to the conventional independent modulation of spectral amplitudes for first and second order solitons. Index Terms Nonlinear Fourier Transform, Manakov System, Dual-Polarization Multi-Soliton Transmission, Nonlinear Fiber TransmissionA. Span and S. ten Brink are with the Institute

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Simulation Resultsmentioning

confidence: 99%

Section: B Phase Modulation For Second Order Solitonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficient Precoding Scheme for Dual-Polarization Multi-Soliton Spectral Amplitude Modulation

Span

Aref

Bülow

et al. 2019

IEEE Trans. Commun.

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“…(94) to (96) contain a nonzero constant contribution, while the constant contribution in the R i is zero. Let the subleading terms of the differentials be given by 5 :…”

Section: B Derivation Of An Analytical Expression For Finite Gap Solmentioning

confidence: 99%

Experimental Demonstration of Data Transmission Based on the Exact Inverse Periodic Nonlinear Fourier Transform

Goossens

Jaouën

Hafermann

2019

Optical Fiber Communication Conference (OFC) 2019

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The nonlinear Fourier transform (NFT) decomposes waveforms propagating through optical fiber into nonlinear degrees of freedom, which are preserved during transmission. By encoding information on the nonlinear spectrum, a transmission scheme inherently compatible with the nonlinear fiber is obtained. Despite potential advantages, the periodic NFT (PNFT) has been studied less compared to its counterpart based on vanishing boundary conditions, due to the mathematical complexity of the inverse transform. In this paper we extract the theory of the algebrogeometric integration method underlying the inverse PNFT from the literature, and tailor it to the communication problem. We provide a fully automatized algorithm to compute the inverse PNFT. As an application, we employ the algorithm to design a novel modulation scheme called nonlinear frequency amplitude modulation, where four different nonlinear frequencies are modulated independently. Finally we provide two further modulation schemes that may be considered in future research. The obtained algorithm is applied in Part II of this paper in the design of a PNFT-based communication experiment.

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2021

Fiber‐Optic Communication Systems

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Dual-polarization nonlinear Fourier transform-based optical communication system

Cited by 129 publications

References 46 publications

Efficient Precoding Scheme for Dual-Polarization Multi-Soliton Spectral Amplitude Modulation

Efficient Precoding Scheme for Dual-Polarization Multi-Soliton Spectral Amplitude Modulation

Experimental Demonstration of Data Transmission Based on the Exact Inverse Periodic Nonlinear Fourier Transform

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