Single-Carrier 400G 64QAM and 128QAM DWDM Field Trial Transmission Over Metro Legacy Links

We report on the results of a field trial carried out on a Telecom Italia metro link, targeting short data center interconnect applications. The test-bed presented realistic transmission conditions, such as an average ~0.3-dB/km attenuation and usage of legacy erbium-doped fiber amplifier (EDFA) onl...

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Bibliographic Details
Published in:IEEE photonics technology letters 2017-01, Vol.29 (2), p.189-192
Main Authors: Khanna, Ginni, Rahman, Talha, De Man, Erik, Riccardi, Emilio, Pagano, Annachiara, Piat, Anna Chiado, Calabro, Stefano, Spinnler, Bernhard, Rafique, Danish, Feiste, Uwe, De Waardt, Huug, Sommerkorn-Krombholz, Bernd, Hanik, Norbert, Drenski, Tomislav, Bohn, Marc, Napoli, Antonio
Format: Article
Language:English
Subjects:
Bandwidth
data center interconnects
digital pre-distortion
Digital signal processing
Forward error correction
high-order modulation formats
Quadrature amplitude modulation
Receivers
Transmitters
Wavelength division multiplexing
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Summary:We report on the results of a field trial carried out on a Telecom Italia metro link, targeting short data center interconnect applications. The test-bed presented realistic transmission conditions, such as an average ~0.3-dB/km attenuation and usage of legacy erbium-doped fiber amplifier (EDFA) only. We transmitted a net bit rate of 400 Gb/s on a single carrier with 64 quadrature amplitude modulation (QAM) and 128QAM over 156 km. Error-free transmission over 80 km for single carrier dense wavelength-division multiplexing (DWDM) 30 × 400G 64QAM and 30 × 400G 128QAM (one half of the C-band) is reported. The net spectral efficiency, for both schemes, is 7.11 b/s/Hz.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2016.2632165