Presentation Information

[BCS-1-01]Photonically Enabled Terahertz Wireless Communications

〇Martyn Fice1, Iñigo Belio-Apaolaza1, Yozo Shoji2, James Seddon1, Feng Liu1, Cyril Renaud1, Alwyn Seeds1 (1. University College London, 2. National Institute of Information and Communications Technology)

Keywords:

THz communications,Photonics,Wireless communications

The huge bandwidth available at terahertz frequencies (0.1 – 10 THz) makes this frequency band attractive for high-data-rate wireless communications. Particularly at the lower end of the THz band, typically in the range 140 – 330 GHz (sometimes referred to as “sub-THz”), signals can conveniently be generated by photomixing two lasers on a high-speed photodiode. This enables high-data-rate wireless signals using complex modulation formats to be readily generated using optical modulation techniques developed for fibre-optic systems. Signal generation in the optical domain provides great flexibility (of carrier frequency, THz power, etc.), simplifies signal distribution, and allows seamless fibre-wireless convergence.
This presentation will review the performance of key components and describe experimental demonstrations conducted at UCL of photonically enabled THz wireless communications targeting a range of applications from in-room communications to wireless front/backhaul and fibre-wireless-fibre bridges. Critical challenges that need to be addressed to enable exploitation of the technology will be discussed.