[en] A large-aperture design for terahertz traveling-wave photomixers, continuously pumped free space by two detuned diode lasers, is proposed and experimentally verified for devices based on low-temperature-grown GaAs sLT-GaAsd. It combines the advantages of conventional interdigitated small-area structures and traveling-wave devices. An output power of 1 µW at the mixing frequency of 1 THz was measured in initial testing, which meets local oscillator power requirements for superconducting heterodyne mixer devices.
Disciplines :
Electrical & electronics engineering
Identifiers :
UNILU:UL-ARTICLE-2009-348
Author, co-author :
Michael, E. A.; Physics Institute, University of Cologne, Zülpicher Strasse 77, 50937 Köln, Germany
Vowinkel, B.; Physics Institute, University of Cologne, Zülpicher Strasse 77, 50937 Köln, Germany
Schieder, R.; Physics Institute, University of Cologne, Zülpicher Strasse 77, 50937 Köln, Germany
Mikulics, M.; Institute of Thin Films and Interfaces (ISG-1), Research Center Jülich, 52425 Jülich, Germany
Marso, Michel ; Institute of Thin Films and Interfaces (ISG-1), Research Center Jülich, 52425 Jülich, Germany
Kordoš, P.; Institute of Thin Films and Interfaces (ISG-1), Research Center Jülich
Language :
English
Title :
Large-area traveling-wave photonic mixers for increased continuous terahertz power
