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Plasmonic Ferroelectric Modulators

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posted on 2023-11-30, 19:09 authored by Andreas Messner, Felix Eltes, Ping Ma, Stefan Abel, Benedikt Baeuerle, Arne Josten, Wolfgang Heni, Daniele Caimi, Jean Fompeyrine, Juerg Leuthold
Integrated ferroelectric plasmonic modulators featuring large bandwidths, broad optical operation range, resilience to high temperature and ultracompact footprint are introduced. Measurements show a modulation bandwidth of 70 GHz and a temperature stability up to 250{\deg}C. Mach-Zehnder interferometer modulators with 10-$\mu$m-long phase shifters were operated at 116 Gbit/s PAM-4 and 72 Gbit/s NRZ. Wide and open eye diagrams with extinction ratios beyond 15 dB were found. The fast and robust devices are apt to an employment in industrial environments.

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