This article is cited in 10 papers

Fibre-optic communication lines

Soliton communication lines based on spectrally efficient modulation formats

O. V. Yushko^ab, A. A. Redyuk<sup>ab

a</sup> Institute of Computing Technologies, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
^b Novosibirsk State University

Abstract: We report the results of mathematical modelling of optical-signal propagation in soliton fibre-optic communication lines (FOCLs) based on spectrally efficient signal modulation formats. We have studied the influence of spontaneous emission noise, nonlinear distortions and FOCL length on the data transmission quality. We have compared the characteristics of a received optical signal for soliton and conventional dispersion compensating FOCLs. It is shown that in the presence of strong nonlinearity long-haul soliton FOCLs provide a higher data transmission performance, as well as allow higher order modulation formats to be used as compared to conventional communication lines. In the context of a coherent data transmission, soliton FOCLs allow the use of phase modulation with many levels, thereby increasing the spectral efficiency of the communication line.

Keywords: soliton communication lines, coherent detection, multilevel modulation formats, mathematical modelling.

PACS: 42.79.Sz, 42.81.Dp

Received: 15.01.2014
Revised: 13.03.2014

 English version: Quantum Electronics, 2014, 44:6, 606–611

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