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100 Gbit/s terahertz-wireless real-time transmission using a broadband digital-coherent modem

: Castro, Carlos; Elschner, Robert; Merkle, Thomas; Schubert, Colja


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE 2nd 5G World Forum, 5GWF 2019. Conference Proceedings : 30 September - 2 October 2019, Dresden, Germany
Piscataway, NJ: IEEE, 2019
ISBN: 978-1-7281-3627-1
ISBN: 978-1-7281-3628-8
5G World Forum (5GWF) <2, 2019, Dresden>
Fraunhofer IAF ()
Fraunhofer HHI ()
real-time transmission; THz communications; wireless communiation

In this paper, we demonstrate for the first time 100Gbit/s real-time THz-wireless data transmission at a carrier frequency of 300 GHz using a single broadband real-time modem originally designed for 2x2 Polarization-MIMO digital-coherent fiber-optical transmission. As a reference, the performance of the 50-cm long, LoS, spatially multiplexed (x2) wireless link is also evaluated using offline DSP algorithms optimized for the THz setup. During the real-time operation of the system, we have recorded the pre-FEC BER over 100 hours of continous operation to demonstrate the stability of the systems.