First demonstration of digital coherent transmission in a deployed ROADM network with a 120 Gbit/s polarization-multiplexed 64 QAM signal
T Hirooka, K Kasai, Y Wang, M Nakazawa… - IEICE Electronics …, 2015 - jstage.jst.go.jp
T Hirooka, K Kasai, Y Wang, M Nakazawa, M Shiraiwa, Y Awaji, N Wada
IEICE Electronics Express, 2015•jstage.jst.go.jpWe demonstrate the add/drop operation and transmission of 120 Gbit/s (10 Gsymbol/s)
polarization-multiplexed (PDM) 64 QAM digital coherent signals in a deployed ROADM
network. By equalizing waveform distortions at the ROADM node with an FIR filter, the QAM
signal was successfully add/drop-multiplexed, and transmitted over a 50km ring network
testbed with neighboring 9× 10 Gbit/s OOK WDM data. This indicates the applicability of
digital coherent systems to the deployed ROADM network based on 10 Gbit/s OOK, and its …
polarization-multiplexed (PDM) 64 QAM digital coherent signals in a deployed ROADM
network. By equalizing waveform distortions at the ROADM node with an FIR filter, the QAM
signal was successfully add/drop-multiplexed, and transmitted over a 50km ring network
testbed with neighboring 9× 10 Gbit/s OOK WDM data. This indicates the applicability of
digital coherent systems to the deployed ROADM network based on 10 Gbit/s OOK, and its …
Abstract
We demonstrate the add/drop operation and transmission of 120 Gbit/s (10 Gsymbol/s) polarization-multiplexed (PDM) 64 QAM digital coherent signals in a deployed ROADM network. By equalizing waveform distortions at the ROADM node with an FIR filter, the QAM signal was successfully add/drop-multiplexed, and transmitted over a 50km ring network testbed with neighboring 9× 10 Gbit/s OOK WDM data. This indicates the applicability of digital coherent systems to the deployed ROADM network based on 10 Gbit/s OOK, and its upgradability to 120 Gbit/s PDM-64 QAM.
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