Title :
Fundamental limitations of digital back-propagation in coherent transmission systems
Author :
Rafique, Danish ; Zhao, Jian ; Ellis, Andrew D.
Author_Institution :
Dept. of Electr. Eng./Phys., Univ. Coll. Cork, Cork, Ireland
Abstract :
Nonlinear compensation techniques using digital back-propagation have been recently proposed. Although a significant effort has been directed towards minimization of the computational load of this method, little work has been reported in terms of the ultimate benefits that can be derived from this approach. Here, we discuss the nonlinear performance bounds imposed by intra-/inter-channel nonlinearities and non-deterministic signal-noise interactions, and investigate their impact on the performance of coherent-detection based optical transmission systems employing high-level modulation formats and digital back-propagation.
Keywords :
light propagation; nonlinear optics; optical communication equipment; optical fibre communication; optical fibres; coherent detection; coherent transmission system; computational load; digital back propagation; digital backpropagation; fundamental limitation; high level modulation formats; interchannel nonlinearity; nondeterministic signal-noise interactions; nonlinear compensation techniques; optical transmission systems; Dispersion; Modulation; Nonlinear optics; Optical fibers; Optical noise; Signal to noise ratio; Wavelength division multiplexing; Coherent communications; Kerr nonlinearity; advanced modulation formats; digital signal processing; four-wave mixing; nonlinear optics;
Conference_Titel :
Transparent Optical Networks (ICTON), 2011 13th International Conference on
Conference_Location :
Stockholm
Print_ISBN :
978-1-4577-0881-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2011.5971101
