Efficiency of nonlinear compensation for WDM-PON based OFDM using optical back propagation

Abstract

The Kerr nonlinearity is the main obstacle that limits the performance of the orthogonal frequency division multiplexing wavelength division multiplexing (OFDM-WDM) system. Moreover, the nonlinear compensation method that is feasible and adds no more complexity to the receiver is very necessary for the long-range passive optical network (LR-PON) applications. In this paper, we Investigate the nonlinear and dispersion compensation efficiency in OFDM-WDM system using an advanced optical back propagation (OBP) approach based on spill-step Fourier method.