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Coherent Detection of Polarization Multiplexed Amplitude and Phase Modulated Optical Signals

Polarization multiplexing allows you to increase the spectral efficiency by a factor of two with minimal effort on the transmitter side. It is widely discussed especially for the realization of 100G transmission links. Coherent detection opens a path to demultiplex the signals on the receiver side just using digital signal processing. In this presentation we will discuss the basic optical hardware of a polarization diversity coherent receiver and the principles that can be used to demultiplex signals that take advantage of polarization multiplexing.
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