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A path towards attojoule cryogenic communication
(2022)OSA Technical Digest ~ European Conference on Optical Communication (ECOC) 2022Photonic integration technologies are key to scale-up superconducting quantum computers. Here, we identify suitable classical optical links to control and read out the qubits in cryostats and resolve the power dissipation issue of superconducting computing platforms. Recent results and future solutions are shown.Conference Paper -
Plasmonic PICs — Terabit Modulation on the Micrometer Scale
(2022)OSA Technical Digest ~ European Conference on Optical Communication (ECOC) 2022Plasmonic PICs offer compact high-speed photonic and plasmonic components, enabling a new generation of scalable photonic system solutions. We explain the underlying technology, highlight key applications, review technology demonstrations, and discuss future opportunities.Conference Paper -
Fourier surface grating couplers for integrated photonics
(2022)OSA Technical Digest ~ Optica Advanced Photonics Congress 2022We incorporate Fourier surfaces into silicon waveguides with vertical tapers for next generation photonic grating couplers. By combining thermal scanning-probe lithography and reactive-ion etching, we generate gratings with smoothly apodized depth profiles and multi wavelength coupling functionality.Conference Paper -
Electro-Optic Coefficient of Thin-Film Lithium Niobate up to 270 GHz
(2022)Technical Digest Series ~ Frontiers in Optics + Laser Science 2022 (FIO, LS)The linear electro-optic coefficient of lithium niobate on insulator (LNOI) thin films has been characterized over a broad range of modulation frequencies from 50 MHz to 270 GHz. A coefficient of 25-30 pm/V was found.Conference Paper -
Efficient Polarization-Insensitive O-Band Grating Couplers for Silicon Nitride
(2022)OSA Technical Digest ~ Optica Advanced Photonics Congress 2022We introduce efficient polarization-insensitive SiN O-band grating coupler relying on a simple fabrication procedure. It’s an essential but missing building block in photonics and needed, for example, to realize detectors for light with unknown polarization.Conference Paper -
Electrically Tunable Graphene Organic Hybrid Ring Resonators
(2021)2021 IEEE Photonics Conference (IPC)Conference Paper -
Plasmonic Racetrack Modulator Transmitting 220 Gbit/s OOK and 408 Gbit/s 8PAM
(2021)2021 European Conference on Optical Communication (ECOC)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.Conference Paper -
The H2020 VERTIGO project towards tbit/s optical feeder links
(2021)Proceedings of SPIE ~ International Conference on Space Optics — ICSO 2020Conference Paper -
Transparent Optical-THz-Optical Link Transmission over 5/115 m at 240/190 Gbit/s Enabled by Plasmonics
(2021)OSA Technical Digest ~ Optical Fiber Communication Conference (OFC) 2021The first transparent Optical-THz-Optical link providing record-high line-rates up to 240 and 190 Gbit/s over distances from 5 to 115m is demonstrated. The link is based on direct data-conversion from optical to sub-THz and vice-versa.Conference Paper -
Butt-Coupled III-V Photodetector Monolithically Integrated on SOI with data reception at 50 Gbps OOK
(2021)OSA Technical Digest ~ Optical Fiber Communication Conference (OFC) 2021We demonstrate the first in-plane waveguide butt-coupled high-speed III-V p-i-n photodetector monolithically integrated on standard SOI and demonstrate data reception at 50 GBd using OOK and a 3 dB cut-off frequency approaching 70 GHz.Conference Paper