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We experimentally investigate transmission of 16×112 Gb/s PM-QPSK signals over an optical fiber with effective area of 134 μm2 and attenuation of 0.162 dB/km. We demonstrate transmission over 7200 km with 100 km span lengths.
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.
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