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A 16×112 Gb/s field trial with EDFA only was performed over legacy fiber infrastructure partially with high PMD. Based on 43 Gb/s components we demonstrate by use of 112 Gb/s NRZ-DQPSK modulation format Metro DWDM transmission with carrier-grade margins of more than 4 dB over ultimate Metro distances.
We experimentally demonstrate a chromatic dispersion monitoring technique utilizing a delay-line interferometer and a <;10-GHz photodetector for 40-Gb/s OOK/DPSK. Spectral shift of RF dip changing with up to 560-ps/nm-CD is measured insensitive to 23-ps-DGD and <;15-dB-OSNR.
Optical high speed transmission is limited by the effects of PMD. Electrical equalization principles are entering more and more the field of PMD-mitigation techniques. Within these mitigators there is the group of adaptive electrical filters, with the drawback of a time-consuming adaption process. Several efficient step-size control algorithms are are implemented, which accelerate the adaption-process...
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