Title :
Continuous-wave terahertz system with electro-optical terahertz phase control
Author :
Gobel, T. ; Schoenherr, D. ; Sydlo, C. ; Feiginov, M. ; Meissner, P. ; Hartnagel, H.L.
Author_Institution :
Tech. Univ. Darmstadt, Darmstadt
Abstract :
A method of electro-optical control of the terahertz (THz) phase in continuous-wave photomixing THz systems is suggested and demonstrated. The method enables phase-sensitive detection without any moving mechanical components in the system. Additionally, the method allows lock-in detection without a mechanical chopper, which increases the signal-to-noise ratio of the system.
Keywords :
electro-optical modulation; laser beam applications; microwave photonics; phase control; phase modulation; submillimetre wave devices; continuous-wave photomixing; continuous-wave terahertz system; distributed feedback diode lasers; electro-optic phase modulator; electro-optical terahertz phase control; lock-in detection; phase-sensitive detection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081360
