This article is cited in 8 papers

Optical communication

Study of new modulation data-transmission formats for dispersion-controlled high-bit-rate fibreoptic communication lines

O. V. Shtyrina^a, M. P. Fedoruk^a, S. K. Turitsyn<sup>b

a</sup> Institute of Computational Technologies, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
^b Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: The results of simulation of the propagation of optical signals in a multichannel high-bit-rate fibreoptic communication line with a combined scheme for amplifying optical signals based on new modulation data-transmission formats are presented. A comparative characteristic of formats with the amplitude and phase modulations of the electromagnetic-wave carrier is presented. The results of numerical simulation show that phase-modulation formats have a considerable advantage over amplitude formats. The use of phase-modulation formats leads to an increase in the maximum range of high-quality communications by a factor of three on average compared to amplitude-modulation formats. It is shown that optimal propagation regimes both in the case of amplitude-modulation and phase-modulation formats are realised for the normal (negative) group-velocity dispersion. However, the dispersion value for amplitude-modulation formats proves to be considerably greater than for phase-modulation formats.

PACS: 42.79.Sz, 42.81.Dp

Received: 23.10.2006
Revised: 20.03.2007

 English version: Quantum Electronics, 2007, 37:9, 885–890

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