Title :
Nonlinear Penalties in Dynamic Optical Networks Employing Autonomous Transponders
Author :
Rafique, Danish ; Ellis, Andrew D.
Author_Institution :
Photonic Syst. Group, Univ. Coll. Cork, Cork, Ireland
Abstract :
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.
Keywords :
nonlinear optics; optical Kerr effect; optical fibre networks; optical fibre polarisation; quadrature amplitude modulation; telecommunication traffic; wavelength division multiplexing; autonomous transponders; dynamic optical networks; network traffic; nine-channel dynamic optical mesh network; nonlinear penalties; polarization-multiplexed quadrature amplitude modulation channels; Forward error correction; Modulation; Optical fiber networks; Optical noise; Signal to noise ratio; Transponders; Kerr nonlinearity; network design; optical network; wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2158603
