Proceedings PaperEffect of polarization-mode dispersion on coherent optical distribution systems with shared local oscillator
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We investigate the effect of polarization mode dispersion (PMD) on a coherent optical distribution system with shared local oscillator (LO). The PMD causes mismatch in the states of polarization (SOP's) of the message and LO signals. Because coherent reception relies on the signal SOP, the intermediate frequency signal is degraded by the PMD. Simple expression is derived to estimate the performance degradation.