Purely photonic wireless link at 120 GHz carrier frequency enabled by heterodyne detection with a photoconductive antenna

Milan Deumer; Oliver Stiewe; Simon Nellen; Robert B. Kohlhaas; Robert Elschner; Colja Schubert; Ronald Freund; Martin Schell

doi:10.1117/12.2649256

13 March 2023 Purely photonic wireless link at 120 GHz carrier frequency enabled by heterodyne detection with a photoconductive antenna

Milan Deumer, Oliver Stiewe, Simon Nellen, Robert B. Kohlhaas, Robert Elschner, Colja Schubert, Ronald Freund, Martin Schell

Author Affiliations +

Proceedings Volume 12420, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVI; 1242005 (2023) https://doi.org/10.1117/12.2649256
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We demonstrate a fully photonic sub-THz communication link using a PIN photodiode (PD) emitter and an optimized photoconductive antenna (PCA) as a heterodyne receiver. The novel receiver comprises an iron-doped indium gallium (InGaAs) PCA on a silicon lens and passive radio frequency (RF) circuitry, all packaged into a fiber-coupled module. A 3-dB-bandwidth of 11 GHz for the intermediate frequency was measured. We analyzed the capabilities of the receiver in a wireless communication link over a distance of 1 m with a PIN photodiode as the emitter. At a carrier frequency of 120 GHz, we demonstrate error free transmission for net data rates up to 10 Gbit/s with quaternary quadrature amplitude modulation (4-QAM) modulation.

Conference Presentation

Citation Download Citation

Milan Deumer, Oliver Stiewe, Simon Nellen, Robert B. Kohlhaas, Robert Elschner, Colja Schubert, Ronald Freund, and Martin Schell "Purely photonic wireless link at 120 GHz carrier frequency enabled by heterodyne detection with a photoconductive antenna", Proc. SPIE 12420, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVI, 1242005 (13 March 2023); https://doi.org/10.1117/12.2649256

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