Title :
Terahertz free space communications demonstration with quantum cascade laser and quantum well photodetector
Author :
Grant, P.D. ; Laframboise, S.R. ; Dudek, Rainer ; Graf, M. ; Bezinger, A. ; Liu, H.C.
Author_Institution :
Inst. for Microstruct. Sci., Nat. Res. Council of Canada, Ottawa, ON, Canada
Abstract :
An all photonic terahertz communication link operating at 3.8 THz using a quantum cascade laser and quantum well photodetector has been demonstrated. The link consists of a quantum cascade laser transmitter and a quantum well photodetector receiver. The link was used to transmit audio through 2 m of room air. Carrier strength at the photodetector was 100 times greater than the noise level measured.
Keywords :
optical communication; optical links; optical receivers; optical transmitters; photodetectors; quantum cascade lasers; photonic terahertz communication link; quantum cascade laser transmitter; quantum well photodetector receiver; terahertz free space communications demonstration;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1586
