Conference paper Open Access

A 56 Gbaud Reconfigurable FPGA Feed-Forward Equalizer for Optical Datacenter Networks with flexible Baudrate- and Modulation-Format

Christos Spatharakis; Giannis Kanakis; Nikolaos Iliadis; Paraskevas Bakopoulos; Konstantinos Maragos; George Lentaris; Dimitrios Soudris; Hercules Avramopoulos


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    <subfield code="a">&lt;p&gt;The staggering growth of datacenter traffic has spurred the rapid uptake of advanced modulation-formats to increase throughput. Commodity optoelectronic components are used for cost-efficiency, assisted with digital equalizers to mitigate their bandwidth limitations. With optically-switched datacenter architectures gaining momentum, reconfigurable equalizers are sought allowing the receiver to adapt to different fiber lengths, bitrates and modulation-formats associated to different optical paths. An FPGA-based feed-forward equalizer (FFE) reconfigurable in baudrate and modulation-format is demonstrated. We verify its performance with NRZ and PAM-4 experimental data up to 56 GBaud, investigate its accuracy and extract the optimum FFE implementation for different transmission scenarios.&lt;/p&gt;</subfield>
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    <subfield code="u">Photonics Communications Research Laboratory, National Technical University of Athens,</subfield>
    <subfield code="a">Giannis Kanakis</subfield>
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    <subfield code="u">Photonics Communications Research Laboratory, National Technical University of Athens,</subfield>
    <subfield code="a">Nikolaos Iliadis</subfield>
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    <subfield code="u">Photonics Communications Research Laboratory, National Technical University of Athens,</subfield>
    <subfield code="a">Paraskevas Bakopoulos</subfield>
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    <subfield code="u">Microprocessors and Digital Systems Laboratory, National Technical University of Athens</subfield>
    <subfield code="a">Konstantinos Maragos</subfield>
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    <subfield code="u">Microprocessors and Digital Systems Laboratory, National Technical University of Athens</subfield>
    <subfield code="a">George Lentaris</subfield>
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    <subfield code="u">Microprocessors and Digital Systems Laboratory, National Technical University of Athens</subfield>
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    <subfield code="a">eNd to End scalable and dynamically reconfigurable oPtical arcHitecture for application-awarE SDN cLoud datacentErs</subfield>
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