Title :
Generation of CW THz radiation by optical heterodyne with diode lasers and LTG-GaAs photoconductors
Author :
Matsuura, S. ; Tani, M. ; Sakai, K.
Author_Institution :
Commun. Res. Lab., Kansai Adv. Res. Center, Iwaoka, Japan
Abstract :
The absolute power and the spectral profile of the CW THz radiation generated by optical heterodyne with diode lasers and LTG-GaAs photoconductors is discussed. An output radiation of l-nW order and a linewidth of 30 MHz were obtained. These values can be easily improved by employing current techniques for stabilizing diode lasers and by the fabrication of high-photoconductivity devices.
Keywords :
III-V semiconductors; dipole antennas; gallium arsenide; infrared sources; optical modulation; photoconducting devices; semiconductor lasers; 1.4 THz; CW THz radiation generation; GaAs; LTG photoconductors; absolute power; diode lasers; high-photoconductivity devices; linewidth; optical heterodyne; output radiation; spectral profile; Antenna measurements; Diode lasers; Dipole antennas; Extraterrestrial measurements; Frequency; Gallium arsenide; Optical mixing; Optical sensors; Photoconductivity; Tunable circuits and devices;
Conference_Titel :
Microwave Photonics, 1996. MWP '96. Technical Digest., 1996 Internatonal Topical Meeting on
Conference_Location :
Kyoto, Japan
Print_ISBN :
0-7803-3129-X
DOI :
10.1109/MWP.1996.662055
