Universal Virtual Lab: A Fast and Accurate Simulation Tool for Wideband Nonlinear DWDM Systems

Dahan, David; Zarubinsky, Michael; Liang, Yunhua; Golani, Ori; Shtaif, Mark

doi:10.1109/jlt.2022.3141447

Cited by 6 publications

(3 citation statements)

References 41 publications

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“…The nonlinear interference (NLI) noise can be considered as an additive Gaussian noise and resolved by the EGN assumption model. NLI noise is governed by two contributions, SPM and XPM, as shown in Equation (5). The SPM and XPM contributions are given by [29] 𝜂 𝑆𝑃𝑀 (𝑓 𝑖 ) ≈ The Kurtosis parameter (i.e., the modulation factor Φ) is defined as in [40] Φ = (𝐸{|𝑥| 4 }/𝐸 2 {|𝑥| 2 }) − 2, where x denotes the data symbol and E is the expectation operator.…”

Section: Appendix B Summary Of the Enhanced Gaussian Noise (Egn) Modelmentioning

confidence: 99%

“…Novel approaches have been suggested to use ultra-wideband (UWB) WDM technique beyond the conventional C band as listed in Table (A) of Appendix A. A WDM system of C+L band with more than 10 THz bandwidth has been widely proposed in the literature because L and C bands have almost the same fiber parameters values [5]. In addition, both bands may share the same photonic devices such as optical amplifiers [6].…”

Section: Introductionmentioning

confidence: 99%

“…Figure(5) shows a simplified schematic diagram of the T2U UWB-WDM fiber communication system. The main parameters of each band used in the calculations are listed in Table(2).…”

mentioning

confidence: 99%

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Toward Seven-Band Coherent WDM System Covering T to U Bands: Predictions of Transmission and BER Performance

Moosa,

Fyath

2024

NJES

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This paper discusses the development of a seven-band coherent wavelength-division multiplexing (WDM) system covering the T to U systems, aiming to enhance the capacity and system efficiency. Seven multiband systems (C+L, S+C+L, S+C+L+U, E+S+C+L, E+S+C+L+U, O+E+S+C+L+U, and T+O+E+S+C+L+U) are designed with 40 GBaud symbol rate, 50 GHz channel spacing, and dual-polarization (DP)-16QAM signaling. The analysis adopted the enhanced Gaussian noise model, considering the amplified spontaneous emission of inline optical amplifiers and nonlinear interference (NLI) from fiber nonlinear optics, including Kerr effect and stimulated Raman scattering (SRS) which it implemented using Matlab (Ver. 2020b) program. The results show that the optimal powers are -4, -5, -5, -4.5, -3.5, -6, and -4.5 dBm for the seven WDM systems, respectively. Further, with a fiber span length of 100 km, the C+L system has the longest transmission reach of 20 span. However, using S+C+L+U system gives the highest bit rate-distance product of 1619 Tbps.km. The O+E+S+C+L+U and T+O+E+S+C+L+U systems are designed with 50 km-span length to reduce the effect of NLI caused by the large numbers of channels (1060 and 1200, respectively).

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Section: Appendix B Summary Of the Enhanced Gaussian Noise (Egn) Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Toward Seven-Band Coherent WDM System Covering T to U Bands: Predictions of Transmission and BER Performance

Moosa,

Fyath

2024

NJES

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The Digital Twin Framework for the Physical Wideband and Long‐Haul Optical Fiber Communication Systems

Yang,

Niu,

Fan

et al. 2024

Laser & Photonics Reviews

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Digital twin (DT) modeling is essential to optical fiber communication systems, particularly for enhancing system performance, controlling the system in real time, and understanding signal nonlinearity. Conventional split‐step Fourier method ‐based simulations, however, struggle with wide‐band transmissions, plagued by increasing complexity and inherent biases due to inconsistent link parameter availability. Addressing these challenges, a hybrid data‐driven and model‐driven DT approach for the wide‐band and long‐haul physical systems with various system effects is developed. The approach utilizes a neural network (NN) to capture fiber nonlinear features as well as biased perturbations as “lumped” stochastic noises while offloading the linear effects to modules described by physical models of link elements. The model, tested in a 30.5‐Tbps 1200 km fiber transmission link with 40 channels, achieves a mean Q factor error of less than 0.1 dB and a maximum runtime of 1.3 s for NN processing under various launch powers, transmission lengths, and optical signal‐to‐noise ratios. Furthermore, the study has implemented a nonlinear compensation algorithm on the DT model, yielding a consistent enhancement in experimental data. The accuracy and adaptability of the DT model underline its suitability for planning, design, and optimization within the physical optical fiber communication systems.

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Fast and Accurate Waveform Modeling of Long-Haul Multi-Channel Optical Fiber Transmission Using a Hybrid Model-Data Driven Scheme

Yang

Niu

Zhao

et al. 2022

J. Lightwave Technol.

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Universal Virtual Lab: A Fast and Accurate Simulation Tool for Wideband Nonlinear DWDM Systems

Cited by 6 publications

References 41 publications

Toward Seven-Band Coherent WDM System Covering T to U Bands: Predictions of Transmission and BER Performance

Toward Seven-Band Coherent WDM System Covering T to U Bands: Predictions of Transmission and BER Performance

The Digital Twin Framework for the Physical Wideband and Long‐Haul Optical Fiber Communication Systems

Fast and Accurate Waveform Modeling of Long-Haul Multi-Channel Optical Fiber Transmission Using a Hybrid Model-Data Driven Scheme

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