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[Whitepaper] VIAVI: Measurement of Optical Signal to Noise Ratio in Coherent Systems using Polarization Multiplexed Transmission

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Download the Whitepaper by VIAVI: Measurement of Optical to Noise Ration in Coherent Systems using Polarization Multiplexed Transmissions

Measuring Optical Signal-to-Noise-Ratio (OSNR) in live Dense Wavelength Division Multiplexing (DWDM) systems using polarization multiplexed transmission (Pol-Mux) is an unsolved challenge. In this paper a novel method to calculate OSNR from the correlation between spectral components in the optical spectrum of a transmission signal is proposed.