Abstract-Ultrawide-Bandwidth Single-Channel 0.4-THz Wireless Link Combining Broadband Quasi-Optic Photomixer and Coherent Detection

Ducournau, G. 
Institut d'Electronique, Micro électronique et de Nanotechnologies (IEMN), UMR CNRS 8520/Universit?? de Lille 1, Villeneuve d'Ascq cedex, France 
Szriftgiser, P. ; Beck, A. ; Bacquet, D. ; Pavanello, F. ; Peytavit, E. ; Zaknoune, M. ; Akalin, T. ;Lampin, J.-F.

http://ieeexplore.ieee.org/xpl/abstractAuthors.jsp?reload=true&arnumber=6774486&sortType%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A5741778%29

Free space communications with huge data capacity have become a key point for the development of mobile access, services, and network technologies convergence. Wireless links using emerging terahertz technologies, also referred to as T-ray communications, have become an intensive research field within last years since T-rays at the millimeter/submillimeter frontier remain more robust in terms of scintillation, dielectric obstacles, and fog compared with near-infrared signals. Using a passive THz hot-spot which can be fed by fiber optic networks, we investigate up bit rates up to 46 Gbps for a THz wireless transmission system at 400-GHz carrier frequency. Using a THz photomixer integrated with a specific broadband antenna and heterodyne electronic detection, we investigate the eye diagrams using 1-$mu$ W received power, highlighting the high sensitivity and ultra-wideband behavior of the whole THz system.

Published in:

Terahertz Science and Technology, IEEE Transactions on  (Volume:PP ,  Issue: 99 )