Title :
Homodyne detection up to 2 THz using continuous wave laser diodes
Author :
Spencer, L. ; Pepper, M. ; Ritchie, D.A. ; Jones, G.A. ; Beere, H.E. ; Gregory, I.S. ; Tribe, W.R. ; Evans, M.J.
Author_Institution :
Cavendish Lab., Cambridge Univ., UK
Abstract :
We present a terahertz photomixing system based on free-running diode lasers and a resonant photoconductive receiver. Extensive modelling work has led to a detailed understanding of photomixer and antenna design, which coupled with the use of optical isolators, has allowed homodyne detection to be achieved at frequencies up to 2 THz.
Keywords :
optical isolators; photoconducting devices; semiconductor lasers; submillimetre wave detectors; antenna design; continuous wave laser diodes; free-running diode lasers; homodyne detection; optical isolators; resonant photoconductive receiver; terahertz photomixing system; Biomedical optical imaging; Charge carrier lifetime; Diode lasers; Frequency; Optical modulation; Optical receivers; Optical sensors; Photoconducting devices; Photoconductivity; Ultrafast optics;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572502
