Sub-THz wireless transmission based on graphene-integrated optoelectronic mixer

Alberto Montanaro (), Giulia Piccinini, Vaidotas Mišeikis, Vito Sorianello, Marco A. Giambra, Stefano Soresi, Luca Giorgi, Antonio D’Errico, K. Watanabe, T. Taniguchi, Sergio Pezzini, Camilla Coletti and Marco Romagnoli
Additional contact information
Alberto Montanaro: Photonic Networks and Technologies Lab – CNIT
Giulia Piccinini: NEST, Scuola Normale Superiore
Vaidotas Mišeikis: Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia
Vito Sorianello: Photonic Networks and Technologies Lab – CNIT
Marco A. Giambra: Inphotec, CamGraPhIC srl
Stefano Soresi: Inphotec, CamGraPhIC srl
Luca Giorgi: Ericsson Research
Antonio D’Errico: Ericsson Research
K. Watanabe: National Institute for Materials Science
T. Taniguchi: National Institute for Materials Science
Sergio Pezzini: NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore
Camilla Coletti: Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia
Marco Romagnoli: Photonic Networks and Technologies Lab – CNIT

Nature Communications, 2023, vol. 14, issue 1, 1-14

Abstract: Abstract Optoelectronics is a valuable solution to scale up wireless links frequency to sub-THz in the next generation antenna systems and networks. Here, we propose a low-power consumption, small footprint building block for 6 G and 5 G new radio wireless transmission allowing broadband capacity (e.g., 10–100 Gb/s per link and beyond). We demonstrate a wireless datalink based on graphene, reaching setup limited sub-THz carrier frequency and multi-Gbit/s data rate. Our device consists of a graphene-based integrated optoelectronic mixer capable of mixing an optically generated reference oscillator approaching 100 GHz, with a baseband electrical signal. We report >96 GHz optoelectronic bandwidth and −44 dB upconversion efficiency with a footprint significantly smaller than those of state-of-the-art photonic transmitters (i.e.,

Date: 2023
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DOI: 10.1038/s41467-023-42194-6

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