Narrow linewidth terahertz signal generation using a dual-mode semiconductor Fabry-Pérot laser and a uni-travelling carrier photodiode
Résumé
A narrowband terahertz signal generated by a uni-travelling carrier photodiode (UTC-PD) interfaced with a
dual-mode Fabry-Pérot laser diode is demonstrated. A beat tone corresponding to the free spectral range is generated on the UTC-PD, and radiated by a transverse-electromagnetic-horn antenna. All components involved in this experiment operate at room temperature. The terahertz signal at a frequency of 372 GHz is recorded, and the linewidth is 17 MHz. The linewidth and the tunability of the emitted terahertz wave are analyzed, as a function of the laser bias.
Domaines
Sciences de l'ingénieur [physics]| Origine | Fichiers produits par l'(les) auteur(s) |
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