Digital-domain chromatic dispersion compensation for different pulse shapes: Practical considerations

Rozental, Valery N.; Parahyba, Victor; Reis, Jacklyn D.; Mello, Darli A. A.

doi:10.1109/imoc.2015.7369135

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2021

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“…Time Domain Equalizers (TDE) are used only in short distances because of their higher power consumption and computational complexity. They are replaced by the Frequency Domain Equalizer (FDE) because of its long reach transmission with lower computational complexity [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Compensation of Chromatic Dispersion in Long-hauls Optical Coherent System

Hadjadji

Hamdi

2021

Period. Polytech. Elec. Eng. Comp. Sci.

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In this paper, we demonstrate the efficiency of Electronic Dispersion Compensation (EDC) for coherent optical systems based on Polarization Division Multiplexed Quadrature Phase Shift Keying (PDM-QPSK). The performance of the proposed system is tested using a pulse that has been recently used in the presence of nonlinear effects.The proposed system is compared to the 0.3RZ-PDM-QPSK system at the optimum launched power under different symbol-rates and lengths of transmission. The simulation results confirm that the proposed method enhances the system performance. In addition, it secures a low penalty that is below 0.6 dB. As a result, the feasible transmission distance is improved by 29 %, 20.15 %, and 26.7 %, at 14 GBaud, 28 Gbaud, and 56 Gbaud, respectively.

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