Chaotic phase noise-like encryption based on geometric shaping for coherent data center interconnections
W Zeng, C Zhang, X Liang, Y Luo, X Wang, K Qiu - Optics Express, 2024 - opg.optica.org
The network traffic of data centers (DCs) has increased unprecedentedly with the rapid
development of digital economy. However, the data transmission faces security threats in the …
development of digital economy. However, the data transmission faces security threats in the …
Introducing 4D geometric shell shaping for mitigating nonlinear interference noise
S Goossens, YC Gültekin, O Vassilieva… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Four dimensional geometric shell shaping (4D-GSS) is introduced as an approach for
closing the nonlinearity-caused shaping gap. This format is designed at the spectral …
closing the nonlinearity-caused shaping gap. This format is designed at the spectral …
Analytical model of nonlinear fiber propagation for general dual-polarization four-dimensional modulation formats
Coherent dual-polarization (DP) optical transmission systems encode information on the
four available degrees of freedom of an optical field: the two polarization states, each with …
four available degrees of freedom of an optical field: the two polarization states, each with …
Power-efficient Voronoi constellations for fiber-optic communication systems
Voronoi constellations (VCs) are considered as an effective geometric shaping method due
to their high power efficiencies and low complexity. In this paper, the performance of 16-and …
to their high power efficiencies and low complexity. In this paper, the performance of 16-and …
Optimization of the non-linearity tolerant 4D geometric shaped constellations for optical fiber communication systems using neural networks
A Soleimanzade, M Ardakani… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
We propose a novel 4D geometric shaping (GS) method based on multilevel coding (MLC)
for optical fiber communication systems that mitigates fiber non-linearity. To design non …
for optical fiber communication systems that mitigates fiber non-linearity. To design non …
Physical realizations of multidimensional Voronoi constellations in optical communication systems
Multidimensional geometric shaping has been shown to outperform uniform quadrature
amplitude modulation (QAM) in optical communication systems but the complexity of symbol …
amplitude modulation (QAM) in optical communication systems but the complexity of symbol …
Orthant-symmetric four-dimensional geometric shaping for fiber-optic channels via a nonlinear interference model
Maximizing the data throughput for optical fiber communication via signal shaping has
usually been regarded as challenging due to the nonlinear interference and implementation …
usually been regarded as challenging due to the nonlinear interference and implementation …
Model-aided 4D geometric shaping for fiber nonlinearity mitigation in single-span system
A nonlinearity-tolerant geometrically-shaped four-dimensional (4D) modulation format, NL-
4D-1024, with spectral efficiency (SE) of 10 bit/4D-sym is designed. Numerical simulations …
4D-1024, with spectral efficiency (SE) of 10 bit/4D-sym is designed. Numerical simulations …
A simplified method for optimising geometrically shaped constellations of higher dimensionality
We introduce a simplified method for calculating the loss function for use in geometric
shaping, allowing for the optimisation of high dimensional constellations. We design …
shaping, allowing for the optimisation of high dimensional constellations. We design …
Probabilistic Shaping Four-dimensional Modulation with Soft Decision for Self-Homodyne Coherent Detection Systems
T Wu, F Tian, Y Li, Q Zhang, R Gao… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
We demonstrate a probabilistic shaping (PS) four-dimensional (4D) modulation in self-
homodyne coherent transmission system. The 4D modulation is based on inter-symbol …
homodyne coherent transmission system. The 4D modulation is based on inter-symbol …