Articles with "coherent optical" as a keyword



Adaptive weighted 61‐QAM based on geometric shaping in coherent optical communication utilizing K‐Means algorithm

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Published in 2021 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32842

Abstract: A novel adaptive weighted geometric‐shaped (GS) 61 quadrature amplitude modulation (QAM) constellation is proposed in order to mitigate the nonlinear damage and increase the transmission distance. By introducing an adaptive weighting factor related to Kerr… read more here.

Keywords: system; optical communication; communication; utilizing means ... See more keywords

Independent component analysis based digital signal processing in coherent optical fiber communication systems

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Published in 2018 at "Optics Communications"

DOI: 10.1016/j.optcom.2017.09.018

Abstract: Abstract In this paper, channel equalization techniques for coherent optical fiber transmission systems based on independent component analysis (ICA) are reviewed. The principle of ICA for blind source separation is introduced. The ICA based channel… read more here.

Keywords: independent component; optical fiber; fiber; coherent optical ... See more keywords

Investigation of a coherent optical wireless system for high speed indoor interconnection

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Published in 2019 at "Optics Communications"

DOI: 10.1016/j.optcom.2018.11.084

Abstract: Abstract In this paper, we investigate a coherent optical wireless communication system, which is able to support tens of gigabits per second data transmission and suit for high speed indoor interconnection. The modulated optical signal… read more here.

Keywords: optical wireless; coherent optical; wireless system;

A numerical assessment of an effective envelope-tracking semiconductor optical amplifier design for coherent-optical OFDM transmission

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Published in 2020 at "Optics Communications"

DOI: 10.1016/j.optcom.2019.124474

Abstract: Abstract The inherent nonlinear effects associated to Semiconductor Optical Amplifiers (SOAs) may translate into a transmission performance loss for non-constant envelope modulation formats. However, a variety of linearization schemes may be adopted for coping with… read more here.

Keywords: envelope; semiconductor optical; envelope tracking; ofdm ... See more keywords

Joint channel/frequency offset estimation and correction for coherent optical FBMC/OQAM system

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Published in 2017 at "Optical Fiber Technology"

DOI: 10.1016/j.yofte.2017.09.009

Abstract: Abstract In this paper, we focus on analysis of the preamble-based joint estimation for channel and laser-frequency offset (LFO) in coherent optical filter bank multicarrier systems with offset quadrature amplitude modulation (CO-FBMC/OQAM). In order to… read more here.

Keywords: estimation; fbmc oqam; method; coherent optical ... See more keywords

Slow Dephasing of Coherent Optical Phonons in Two-Dimensional Lead Organic Chalcogenides.

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Published in 2024 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.4c12643

Abstract: Hybrid organic-inorganic semiconductors with strong electron-phonon interactions provide a programmable platform for developing a variety of electronic, optoelectronic, and quantum materials by controlling these interactions. However, in current hybrid semiconductors such as halide perovskites, anharmonic… read more here.

Keywords: slow dephasing; lead organic; two dimensional; coherent optical ... See more keywords

Ultra-high strained diamond spin register with coherent optical control

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Published in 2024 at "npj Quantum Information"

DOI: 10.1038/s41534-025-01049-2

Abstract: Solid-state spin defects, such as color centers in diamond, are among the most promising candidates for scalable and integrated quantum technologies. In particular, the good optical properties of silicon-vacancy centers in diamond, combined with naturally… read more here.

Keywords: register; high strained; coherent optical; ultra high ... See more keywords

Multi-Objective Optimization of Machine Learning-Based Nonlinear Equalizers for Digital Coherent Optical Interconnects

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Published in 2025 at "IEEE Access"

DOI: 10.1109/access.2025.3588443

Abstract: The growing demand for high-capacity optical networks has driven the advancement of digital coherent optical communication systems, which rely on sophisticated signal processing to mitigate transmission impairments, including nonlinear fiber distortions. Traditional nonlinear compensation techniques,… read more here.

Keywords: multi objective; objective optimization; machine learning; coherent optical ... See more keywords

Enhancing the Vertical Resolution of Coherent Optical Receivers

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Published in 2025 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2024.3521296

Abstract: The constantly increasing capacity demand in optical fiber transmission systems has driven the development of higher-order modulation to share the cost and power-consumption of optoelectronic components across many bits. However, higher-order modulation imposes challenging requirements… read more here.

Keywords: vertical resolution; resolution coherent; enhancing vertical; resolution ... See more keywords

Factorized Fourier Operator Based Neural Network for Fiber Nonlinearity Compensation in Coherent Optical Communication Systems

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Published in 2025 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2025.3530420

Abstract: In long-haul and high-capacity coherent optical communications systems, it is essential to reduce the complexity of the underlying algorithms in the practical implementation of digital signal processing techniques for compensation of transmission impairments. Here, we… read more here.

Keywords: fourier operator; factorized fourier; coherent optical; compensation ... See more keywords

Fiber Channel Modeling for Coherent Optical Fiber Communication Systems Using Koopman Neural Operator

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Published in 2025 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2025.3606506

Abstract: Optical fiber channel modeling plays a vital role in the simulation, design, and performance assessment of optical fiber communication systems. Here, a new deep learning architecture, the Koopman neural operator (KNO) based network is investigated… read more here.

Keywords: channel modeling; communication systems; coherent optical; optical fiber ... See more keywords