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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 22 — Oct. 24, 2011
  • pp: 21898–21903

PDM-16QAM transmission performance over uncompensated fiber links

Pierpaolo Boffi, Paolo Martelli, Matteo Cirigliano, Maurizio Magarini, Mario Martinelli, Marco Bertolini, Marianna Pepe, Domenico Di Mola, and Giancarlo Gavioli  »View Author Affiliations

Optics Express, Vol. 19, Issue 22, pp. 21898-21903 (2011)

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The dependence of propagation performance on the signal baud-rate is investigated by simulations for WDM PDM-16QAM systems operating at a spectral efficiency of 4 b/s/Hz. We take into account the case of transmission over uncompensated links, both for standard single-mode fiber and non-zero dispersion-shifted fiber. Three baud-rates are tested: 16.25, 32.5 and 65 Gbaud, including overhead for soft-decision FEC. Hence, we compare the performance limited by the nonlinear impairments in case of 100, 200 and 400 Gb/s data rate transmission, respectively. We demonstrate that the trade-off between higher OSNR margin and nonlinear transmission penalty favors transmission at lower baud-rate (16.25 Gbaud) and narrower channel spacing (25 GHz), among the three different simulated baud-rates.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: May 26, 2011
Revised Manuscript: June 30, 2011
Manuscript Accepted: July 2, 2011
Published: October 21, 2011

Pierpaolo Boffi, Paolo Martelli, Matteo Cirigliano, Maurizio Magarini, Mario Martinelli, Marco Bertolini, Marianna Pepe, Domenico Di Mola, and Giancarlo Gavioli, "PDM-16QAM transmission performance over uncompensated fiber links," Opt. Express 19, 21898-21903 (2011)

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