Nonlinear penalties in dynamic optical networks employing autonomous transponders

Danish Rafique, Andrew D. Ellis

Research output: Contribution to journalArticle


We report for the first time on the limitations in the operational power range of network traffic in the presence of heterogeneous 28-Gbaud polarization-multiplexed quadrature amplitude modulation (PM-mQAM) channels in a nine-channel dynamic optical mesh network. In particular, we demonstrate that transponders which autonomously select a modulation order and launch power to optimize their own performance will have a severe impact on copropagating network traffic. Our results also suggest that altruistic transponder operation may offer even lower penalties than fixed launch power operation.
Original languageEnglish
Article number5783504
Pages (from-to)1213-1215
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number17
Publication statusPublished - 2 Jun 2011

Bibliographical note

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  • Kerr nonlinearity
  • wavelength-division multiplexing
  • optical network
  • network design

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