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Proceedings Paper

Optimal launch power prediction of a 100G PM-DQPSK dispersion-managed link with the Gaussian noise model
Author(s): Telmo P. Almeida; Miguel V. Drummond; Natasa B. Pavlović; Paulo S. André; Rogério N. Nogueira
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Paper Abstract

Of all the non-linear fiber propagation models proposed over the years, the Gaussian Noise (GN) model is growing in popularity due to its simplicity and yet reliability when it comes to predict performance of uncompensated coherent transmission (UT) systems that rely on state-of-the art digital-signal processing (DSP) for dispersion compensation. However, many of the systems currently deployed rely on optical CD compensation. Overhauling or upgrading these systems with the most recent DSP is not always feasible. In this context, it is important to broad the range of the GNmodel to dispersion managed (DM) systems, so both scenarios can benefit from a low complexity, fast and reliable performance prediction tool. In this paper, we validate the first results comparing the performance in both accuracy and simulation time of the GN model simulating a realistic DM scenario that relies on periodical spans of non-dispersion shifted fiber (NDSF) to perform the dispersion compensation. The same realistic scenarios were modeled with commercial software and the GN model. The objective was to predict the optimal launch power for different link lengths, central wavelengths and channel spacing values. Preliminary results obtained with the GN model are in good agreement with the ones from the commercial software for several link distances tested up to 2400 Km.

Paper Details

Date Published: 22 August 2014
PDF: 5 pages
Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 92861X (22 August 2014); doi: 10.1117/12.2063736
Show Author Affiliations
Telmo P. Almeida, Instituto de Telecomunicações (Portugal)
Univ. de Aveiro (Portugal)
Miguel V. Drummond, Coriant GmbH (Portugal)
Natasa B. Pavlović, Coriant GmbG (Portugal)
Paulo S. André, Instituto Superior Técnico (Portugal)
Rogério N. Nogueira, Instituto de Telecomunicações (Portugal)

Published in SPIE Proceedings Vol. 9286:
Second International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. Martins Costa; Rogério Nunes Nogueira, Editor(s)

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