Research on PMD mitigation by using distributed fast polarization scrambling and FEC

Polarization mode dispersion (PMD) is one of the major obstacles in high-speed (above 100Gbits rate) and long-haul optical communication system. The principle and performance of scrambling is introduced in this paper and the fundamental idea of improving PMD mitigation by using distributed fast polarization scrambling (D-FPS) combined with FEC is proposed, which would be a promising approach for performance improvement in ultra-high-speed optical communication system.