Abstract
We report PMD measurements, performed on an amplified network with Reconfigurable Optical Add Drop Multiplexers (ROADMs) and a total fiber length exceeding 1000km, using a commercially available setup based on the Fixed Analyzer Fourier Transform (FA-FT) technique. We have implemented straightforward numerical filtering that removes the inter-channel spectral data as well as dropped channels and demonstrated the improvement brought to the SNR. We show that this enhancement would allow one to maintain reliable PMD readings in Agile Optical Networks with transmission pass-bands affected by ROADMs.
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