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Coherent Systems: 112 Gb/s PM QPSK. QPSK signals with orthogonal states-of-polarization (X and Y) are combined. This is referred to as polarization multiplexing (PM).
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Coherent Systems: 112 Gb/s PM QPSK QPSK signals with orthogonal states-of-polarization (X and Y) are combined. This is referred to as polarization multiplexing (PM).