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Why Coherent Detection Systems May Fail at Compensating for Polarization Mode Dispersion

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Why Coherent Detection Systems May Fail at Compensating for Polarization Mode Dispersion

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  • Author: Jean-Sébastien Tassé, Wajih Daab
Given that 40G/100G coherent detection systems are now extensively deployed, the telecommunications industry has a solid grasp of their performance. Along with many other features, coherent systems are reputed to compensate for polarization mode dispersion (PMD) in real time thanks to advanced algorithms that have made it possible to compensate for such impairments in the electrical domain, and advanced modulation formats that have made it possible to encode more bits per symbol (keeping the same baud rate).

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