Nonlinear Inverse Synthesis and Eigenvalue Division Multiplexing in Optical Fiber Channels

Jaroslaw E. Prilepsky, Stanislav A. Derevyanko, Keith J. Blow, Ildar Gabitov, Sergei K. Turitsyn
2014 Physical Review Letters  
We scrutinize the concept of integrable nonlinear communication channels, resurrecting and extending the idea of eigenvalue communications in a novel context of nonsoliton coherent optical communications. Using the integrable nonlinear Schrödinger equation as a channel model, we introduce a new approachthe nonlinear inverse synthesis method-for digital signal processing based on encoding the information directly onto the nonlinear signal spectrum. The latter evolves trivially and linearly along
more » ... and linearly along the transmission line, thus, providing an effective eigenvalue division multiplexing with no nonlinear channel cross talk. The general approach is illustrated with a coherent optical orthogonal frequency division multiplexing transmission format. We show how the strategy based upon the inverse scattering transform method can be geared for the creation of new efficient coding and modulation standards for the nonlinear channel.
doi:10.1103/physrevlett.113.013901 pmid:25032926 fatcat:qc2uk76lw5cdpa2uiv6mko65y4