Coherent THz communication at 200 GHz using a frequency comb, UTC-PD and electronic detection

Guillaume Ducournau (1) , Y. Yoshimizu (2, 3) , S. Hisatake (3) , F. Pavanello (4) , Emilien Peytavit (1) , Mohammed Zaknoune (5) , T. Nagatsuma (3) , Jean-Francois Lampin (1)

1 PHOTONIQUE THZ - IEMN - Photonique THz - IEMN
2 Osaka University [Osaka]
3 Graduate School of Engineering Science [Toyonaka, Osaka]
4 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
5 ANODE - IEMN - Advanced NanOmeter DEvices - IEMN

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.

Mots clés: ptical beat note, frequency 200 GHz, coherent terahertz link, coherent THz communication, error-free operation, optical frequency comb generator, electronic receiver, electronic detection, indoor link configuration, quasioptic unitravelling carrier photodiode emitter, UTC-PD emitter, bit rate 11 Gbit/s, BER testing

Domaines: Electronique

Guillaume Ducournau, Y. Yoshimizu, S. Hisatake, F. Pavanello, Emilien Peytavit, et al.. Coherent THz communication at 200 GHz using a frequency comb, UTC-PD and electronic detection. Electronics Letters, 2014, 50 (5), pp.386-388. ⟨10.1049/el.2014.0056⟩. ⟨hal-03286173⟩