This article is cited in 3 papers

Fibreoptic communication. Waveguides

Suppression of nonlinear distortion in a high-speed multichannel communication line with variable quadratic dispersion compensation

E. G. Shapiro, D. A. Shapiro

Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: We report a numerical simulation of the propagation of short (25 ps) 8QAM pulses for two polarisations in a nine-channel communication line with a frequency band of 80 GHz. It is shown that the use of large-chirp pulses and different dispersion compensators leads to effective suppression of nonlinear distortions and significantly improves the signal quality in a multichannel communication line due to the rapid pulse broadening.

Keywords: fibre-optic communication lines, mathematical modelling, nonlinear Schrödinger equation, wavelength division multiplexing, chirp.

Received: 20.04.2021
Revised: 09.05.2021

 English version: Quantum Electronics, 2021, 51:7, 635–638

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