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A transparent Optical-subTHz-Optical link providing record-high single line rates of 240 Gbit/s and 192 Gbit/s on a single optical carrier over distances from 5 to 115 m is demonstrated. Besides a direct mapping of the optical to a 230 GHz subTHz-carrier frequency by means of a uni-traveling carrier (UTC) photodiode, we demonstrate direct conversion of data from the subTHz domain back to the optical domain by a plasmonic modulator. It is shown that the subTHz-to-optical upconversion can even be performed at good quality without any electrical amplifiers. Finally, at the receiver, the local oscillator is employed to directly map the optical signal back to the electrical baseband within a coherent receiver., Journal of Lightwave Technology, 40 (6), ISSN:0733-8724, ISSN:1558-2213

OOK line rates of 220 Gbit/s and 408 Gbit/s 8PAM and transmission over 100 m are demonstrated with a resonant plasmonic racetrack modulator. The device requires low 0.6 Vp driver voltages, offers a bandwidth >110 GHz and on-chip losses of 1.0 dB., 2021 European Conference on Optical Communication (ECOC), ISBN:978-1-6654-3868-1, ISBN:978-1-6654-1150-9

Low power broadband plasmonic silicon-photonic racetrack modulators are introduced. 100 Gbit/s NRZ-OOK and 100 Gbit/s 4-PAM direct detection is demonstrated. The devices feature a bandwidth of 50 GHz, operate with 1.3 V p and are of interest because of the low on-chip loss characteristics., 2020 European Conference on Optical Communications (ECOC), ISBN:978-1-7281-7361-0, ISBN:978-1-7281-7362-7