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

作者:Arlunno Valeria*; Zhang Xu; Larsen Knud J; Zibar Darko; Monroy Idelfonso Tafur
来源:Optics Express, 2011, 19(26): 270-276.
DOI:10.1364/oe.19.00b270

摘要

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.

  • 出版日期2011-12-12