Title :
Coherent THz communication at 200 GHz using a frequency comb, UTC-PD and electronic detection
Author :
Ducournau, Guillaume ; Yoshimizu, Y. ; Hisatake, Shintaro ; Pavanello, Fabio ; Peytavit, Emilien ; Zaknoune, Mohammed ; Nagatsuma, Tadao ; Lampin, Jean-Francois
Author_Institution :
Inst. d´Electron., Univ. Lille 1, Villeneuve-d´Ascq, France
Abstract :
A coherent terahertz (THz) link at 200 GHz , with a variable data rate up to 11 Gbit/s, featuring a very high sensitivity at the receiver, is investigated. The system uses a quasi-optic unitravelling carrier photodiode (UTC-PD) emitter and an electronic receiver. The coherent link relies on an optical frequency comb generator at the emission to produce an optical beat note with 200 GHz separation, phase-locked with the receiver. Bit error ratio testing has been carried out using an indoor link configuration, and error-free operation is obtained up to 10 Gbit/s with a received power <;2 μW.
Keywords :
optical communication; photodiodes; BER testing; UTC-PD emitter; bit rate 11 Gbit/s; coherent THz communication; coherent terahertz link; electronic detection; electronic receiver; error-free operation; frequency 200 GHz; indoor link configuration; optical beat note; optical frequency comb generator; quasioptic unitravelling carrier photodiode emitter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0056
