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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 26 — Dec. 12, 2011
  • pp: B270–B276

Digital non-linear equalization for flexible capacity ultradense WDM channels for metro core networking

Valeria Arlunno, Xu Zhang, Knud J. Larsen, Darko Zibar, and Idelfonso Tafur Monroy  »View Author Affiliations


Optics Express, Vol. 19, Issue 26, pp. B270-B276 (2011)
http://dx.doi.org/10.1364/OE.19.00B270


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Abstract

An experimental demonstration of Ultradense WDM with advanced digital signal processing is presented. The scheme proposed allows the use of independent tunable DFB lasers spaced at 12.5 GHz for ultradense WDM PM-QPSK flexible capacity channels for metro core networking. To allocate extremely closed carriers, we demonstrate that a digital non-linear equalization allow to mitigate inter-channel interference and improve overall system performance in terms of OSNR. Evaluation of the algorithm and comparison with an ultradense WDM system with coherent carriers generated from a single laser are also reported.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Backbone and Core Networks

History
Original Manuscript: September 30, 2011
Manuscript Accepted: November 1, 2011
Published: November 18, 2011

Virtual Issues
European Conference on Optical Communication 2011 (2011) Optics Express

Citation
Valeria Arlunno, Xu Zhang, Knud J. Larsen, Darko Zibar, and Idelfonso Tafur Monroy, "Digital non-linear equalization for flexible capacity ultradense WDM channels for metro core networking," Opt. Express 19, B270-B276 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-26-B270


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References

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