Phase-coherent THz-wave demodulation with a photomixer
Laboratoire PhLAM, CNRS UMR 8523, 59655 Villeneuve d’Ascq, France
* Corresponding author: FL.Constantin@univ-lille1.f
Published online: 20 August 2020
The nonlinear electrical response from a low temperature grown GaAs photomixer driven with the optical beat of two continuous-wave lasers allows frequency mixing between radiofrequency and THz-waves. Phase-sensitive demodulation of the signal from a modulated THz-wave is theoretically and experimentally demonstrated using a photomixer electrically driven with an alternative voltage at the modulation frequency.
© The Authors, published by EDP Sciences, 2020
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