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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 28779–28785

Analytical results on back propagation nonlinear compensator with coherent detection

Takahito Tanimura, Markus Nölle, Johannes Karl Fischer, and Colja Schubert  »View Author Affiliations


Optics Express, Vol. 20, Issue 27, pp. 28779-28785 (2012)
http://dx.doi.org/10.1364/OE.20.028779


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Abstract

We derive analytic formulas for the improvement in effective optical signal-to-noise ratio brought by a digital nonlinear compensator for dispersion uncompensated links. By assuming Gaussian distributed nonlinear noise, we are able to take both nonlinear signal-to-signal and nonlinear signal-to-noise interactions into account. In the limit of weak nonlinear signal-to-noise interactions, we derive an upper boundary of the OSNR improvement. This upper boundary only depends on fiber parameters as well as on the total bandwidth of the considered wavelength-division multiplexing (WDM) signal and the bandwidth available for back propagation. We discuss the dependency of the upper boundary on different fiber types and also the OSNR improvement in practical system conditions. Furthermore, the analytical formulas are validated by numerical simulations.

© 2012 OSA

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

ToC Category:
Subsystems for Optical Networks

History
Original Manuscript: October 2, 2012
Revised Manuscript: November 15, 2012
Manuscript Accepted: November 16, 2012
Published: December 12, 2012

Virtual Issues
European Conference on Optical Communication 2012 (2012) Optics Express

Citation
Takahito Tanimura, Markus Nölle, Johannes Karl Fischer, and Colja Schubert, "Analytical results on back propagation nonlinear compensator with coherent detection," Opt. Express 20, 28779-28785 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-27-28779


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References

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