Abstract

The impacts of polarization dependence loss (PDL) on the polarization mode dispersion (PMD) compensation in return-to-zero (RZ) and non-return-to-zero (NRZ) modulated systems are discussed in this paper. PDL affects the degree of polarization (DOP) feedback PMD compensation only in the presence of PMD. And in the presence of PMD and PDL, DOP relates not only to both the PMD and the PDL vectors, but also to the signal's polarization states. In the presence of PDL, DOP-feedback PMD compensation would be more effective in NRZ system than in RZ system.

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