Capacity Region Bounds for Optical WDM Channels Based on First-Order Regular Perturbation

Ramachandran, Viswanathan; Liga, Gabriele; Barreiro, Astrid; Alvarado, Alex

doi:10.1109/jlt.2022.3210890

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…We believe that taking an MUI perspective on nonlinear WDM channels is a promising new research avenue. This is the approach recently taken in [217], where MUI techniques are used for a realistic perturbative model for the nonlinear fiber-optics channel. In MUI, the notion of channel capacity is replaced by a capacity region, and lower and upper bounds by inner and outer bounds, respectively.…”

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

Roadmap on optical communications

Agrell,

Karlsson,

Poletti

et al. 2024

J. Opt.

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The Covid-19 pandemic showed forcefully the fundamental importance broadband data communication and the internet has in our society. Optical communications forms the undisputable backbone of this critical infrastructure, and it is supported by an interdisciplinary research community striving to improve and develop it further. Since the first ‘Roadmap of optical communications’ was published in 2016, the field has seen significant progress in all areas, and time is ripe for an update of the research status. The optical communications area has become increasingly diverse, covering research in fundamental physics and materials science, high-speed electronics and photonics, signal processing and coding, and communication systems and networks. This roadmap describes state-of-the-art and future outlooks in the optical communications field. The article is divided into 20 sections on selected areas, each written by a leading expert in that area. The sections are thematically grouped into four parts with 4–6 sections each, covering, respectively, hardware, algorithms, networks and systems. Each section describes the current status, the future challenges, and development needed to meet said challenges in their area. As a whole, this roadmap provides a comprehensive and unprecedented overview of the contemporary optical communications research, and should be essential reading for researchers at any level active in this field.

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Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

Roadmap on optical communications

Agrell,

Karlsson,

Poletti

et al. 2024

J. Opt.

View full text Add to dashboard Cite

show abstract

A Modified Regular Perturbation Model for the Single-Span Fiber Transmission Using Learnable Methods

He,

Li,

Xing

et al. 2024

Photonics

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In fiber optic communication systems, the dispersion and nonlinear interaction of optical signals are critical to modeling fiber optic communication, and the regular perturbation (RP) model is a simplified modeling method composed of parallel branches, which has obvious advantages in deep learning backpropagation. In this paper, we propose a simplified single-mode fiber signal transmission model based on the RP model, which significantly improves the fitting accuracy of the model for dispersion and nonlinear interactions at the same complexity by adding trainable parameters to the standard RP model. We explain in the paper that this improvement is applicable to dual-polarization systems and still effective under the conditions of large launch power, without dispersion management, and containing amplified spontaneous emission (ASE) noise. The model uses the standard split-step Fourier method (SSFM) to generate labels and updates parameters through gradient descent method. When transmitting a dual-polarization signal with a launch power of 13 dBm, the modified regular perturbation (MRP) model proposed in the paper can reduce the fitting errors by more than 75% compared to the standard RP model after transmitting through a 120 km standard single-mode fiber.

show abstract

Capacity Region Bounds for Optical WDM Channels Based on First-Order Regular Perturbation

Cited by 2 publications

References 31 publications

Roadmap on optical communications

Roadmap on optical communications

A Modified Regular Perturbation Model for the Single-Span Fiber Transmission Using Learnable Methods

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