Abstract
We experimentally demonstrate an ultrafast terahertz (THz) photonic wireless communication link in the 350 GHz band with up to 100 Gbit/s data rate, with an emphasis on extending its wireless reach. By combining the techniques of using a cutting-edge narrow-band uni-traveling-carrier photodiode (UTC-PD) as the THz photo-mixing emitter, spectrally efficient modulation formats and advanced digital signal processing (DSP) algorithms, we successfully transmit 25 GBaud/s 16-quadrature amplitude modulation (16-QAM) signals (overall 100 Gbit/s data rate) over a 350 GHz wireless link with an extended distance of 2 m. This achievement pushes the accessibility of ultrafast 100 Gbit/s wireless communication beyond the state-of-the-art, and makes 100 Gbit/s ultrafast THz wireless communication systems promising for future smart high speed wireless access services.
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