title: Widely tunable telecom MEMS-VCSEL for terahertz photomixing.
abstract: We report frequency-tunable terahertz (THz) generation with a photomixer driven by an ultra-broadband tunable micro-electro-mechanical system vertical-cavity surface-emitting laser (MEMS-VCSEL) and a fixed-wavelength VCSEL, as well as a tunable MEMS-VCSEL mixed with a distributed feedback (DFB) diode. A total frequency span of 3.4 THz is covered in direct detection mode and 3.23 THz in the homodyne mode. The tuning range is solely limited by the dynamic range of the photomixers and the Schottky diode/photoconductor used in the experiment.
authors.forename: Mohammad Tanvir
authors.initials: MT
authors.lastname: Haidar
authors.forename: Sascha
authors.initials: S
authors.lastname: Preu
authors.forename: Sujoy
authors.initials: S
authors.lastname: Paul
authors.forename: Christian
authors.initials: C
authors.lastname: Gierl
authors.forename: Julijan
authors.initials: J
authors.lastname: Cesar
authors.forename: Ali
authors.initials: A
authors.lastname: Emsia
authors.forename: Franko
authors.initials: F
authors.lastname: Küppers