Flexible optical cross-connects for high bit rate elastic photonic transport networks [invited]

M. Song, E. Pincemin, A. Josten, B. Baeuerle, D. Hillerkuss, J. Leuthold, R. Rudnick, D. M. Marom, S. Ben Ezra, J. F. Ferran, G. Thouenon, P. S. Khodashenas, J. M. Rivas-Moscoso, C. Betoule, D. Klonidis, I. Tomkos

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We present here the work performed in the EU-funded flexible optical cross-connect (FOX-C) project, which investigates and develops new flexible optical switching solutions with ultra-fine spectral granularity. Thanks to high spectral resolution filtering elements, the sub-channel content can be dropped from or added to a super-channel, offering high flexibility to optical transport networks through the fine adaptability of the network resources to the traffic demands. For the first time, the FOX-C solutions developed in the project are investigated here and evaluated experimentally. Their efficiency is demonstrated over two high spectral efficiency modulation schemes, namely multi-band orthogonal frequency division multiplexing (MB-OFDM) and Nyquist WDM (N-WDM) formats. Finally, in order to demonstrate the relevance of the FOX-C node concepts, a networking study comparing the economic advantages of the FOX-C optical aggregation solution versus the electronic one is performed.

Original languageAmerican English
Pages (from-to)A126-A140
JournalJournal of Optical Communications and Networking
Issue number7
StatePublished - Jul 2016

Bibliographical note

Publisher Copyright:
© 2016 Optical Society of America.


  • Elastic optical networking
  • Flexible optical cross-connect
  • N-WDM
  • Optical versus electronic aggregation


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