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

Valeria Arlunno, Xu Zhang, Knud J. Larsen, Darko Zibar, Idelfonso Tafur Monroy

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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 Optical Society of America.
Original languageEnglish
JournalOptics Express
Volume19
Issue number26
Pages (from-to)B270-B276
ISSN1094-4087
DOIs
Publication statusPublished - 2011

Bibliographical note

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=oe-19-26-B270. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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