330 GHz and 600 GHz Schottky Heterodyne Systems for QPSK Terahertz Telecommunication

Jeanne Treuttel (1) , Alain Maestrini (1) , Julien Sarrazin (2) , François Joint (1)

1 LERMA (UMR_8112) - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique
2 L2E - Laboratoire d'Electronique et Electromagnétisme

Above 300 GHz, Schottky-based room-temperature heterodyne systems allow to detect THz radiation to the order of <;0.1 K of physical temperature variations in optical blackbodies with unequaled spectral resolution. In this paper we examine some of the parameters of these low-noise and high-resolution detection systems in order to enhance their future use in the generation/detection of free space THz-carrier modulated signals. We propose and demonstrate a novel way to generate QPSK modulated signals through the bias voltage of the last multiplier element of the emitter chain that yet could reach > mW of emitted power and a signal bandwidth of several tenth of gigahertz.

Mots clés: Solid-state electronics; Terahertz; Heterodyne systems; Schottky; Terahertz Telecommunication; QPSK

Domaines: Electromagnétisme

Jeanne Treuttel, Alain Maestrini, Julien Sarrazin, François Joint. 330 GHz and 600 GHz Schottky Heterodyne Systems for QPSK Terahertz Telecommunication. Conference ICT 2018, Jun 2018, Saint Malo, France. ⟨10.1109/ICT.2018.8464903⟩. ⟨hal-02879035⟩