Study of new modulation data-transmission formats for dispersion-controlled high-bit-rate fibreoptic communication lines
- Institute of Computational Techologies, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)
- Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)
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. (optical communication)
- OSTI ID:
- 21466721
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Vol. 37, Issue 9; Other Information: DOI: 10.1070/QE2007v037n09ABEH013470; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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