A General Nonlinear Model for Arbitrary Modulation Formats in the Presence of Inter-Channel Simulated Raman Scattering

2025/09/12 by Zhiwei Liang, Liang, Zhiwei, Bin Chen +11
Biochemistry, Genetics and Molecular Biology · Engineering · #FOS: Electrical engineering #Optical Network Technologies #Signal Processing (eess.SP) #Spectroscopy Techniques in Biomedical and Chemical Research #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2509.10009

openalex publication_date 2025/09/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The four-dimensional nonlinear model is extended to include the inter-channel stimulated Raman scattering, enabling accurate prediction of dual-polarization four-dimensional modulation formats and probabilistically shaped constellations in high-dispersion regimes. The proposed model is validated via comparisons with the split-step Fourier method and enhanced Gaussian noise model.

Citations

• Predicting Nonlinear Interference for Short-Blocklength 4D Probabilistic Shaping
• On Shaping Gain of Multidimensional Constellation in Linear and Nonlinear Optical Fiber Channel
• Analytical Model of Nonlinear Fiber Propagation for General Dual-Polarization Four-Dimensional Modulation Format
• Closed Form Expressions of the Nonlinear Interference for UWB Systems
• A Real-Time Closed-Form Model for Nonlinearity Modeling in Ultra-Wide-Band Optical Fiber Links Accounting for Inter-channel Stimulated Raman Scattering and Co-Propagating Raman Amplification
• A generalized GN-model closed-form formula

Related

• Modeling of Nonlinear Interference Power for Dual-Polarization 4D Formats
• A Modulation-Format Dependent Closed-form Expression for the Gaussian Noise Model in the Presence of Raman Amplification
• An Improved Model of Nonlinear Fiber Propagation in the Presence of Kerr Nonlinearity and Stimulated Raman Scattering
• Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel
• A Real-Time Closed-Form Model for Nonlinearity Modeling in Ultra-Wide-Band Optical Fiber Links Accounting for Inter-channel Stimulated Raman Scattering and Co-Propagating Raman Amplification