Forward Error Correction Codes for Polarization Multiplexed Optical Transmissions with Polarization Dependent Loss

We study long-haul coherent optical transmissions suffering from polarization dependent loss (PDL). Using simulation results, the channel is modeled as parallel channels with randomly distributed noises. By characterizing the noise, we show how to minimize the PDL penalties by using spatially coupled LDPC codes and interleaving data between two orthogonal polarization modes.