A Novel Channel Estimation Method for PDM-OFDM Enabling Improved Tolerance to WDM Nonlinearity
22 March 2009
We propose a novel channel estimation method for polarization-division-multiplexed (PDM) OFDM that improves the signal tolerance to nonlinear cross-phase-modulation in WDM transmission. The improvement is quantified numerically in a 112-GB/s PDM-OFDM based WDM system.