The quantum cascade laser (QCL) is currently the only solid-state source of coherent THz radiation capable of delivering more than 1 mW of average power at frequencies above ~ 2 THz. This power level combined with very good intrinsic frequency definition characteristics make QCLs an extremely appealing solid-state solution as compact sources for THz applications. I will present results on integrating QCLs with passive rectangular waveguides for guiding and controlling the radiation emitted by the QCLs and on the performance of a THz integrated circuit combining a THz QCL with a Schottky diode mixer to form a heterodyne receiver/transceiver.

Date Published: 13 May 2011
PDF: 10 pages
Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 80310E (13 May 2011); doi: 10.1117/12.883612

Published in SPIE Proceedings Vol. 8031:
Micro- and Nanotechnology Sensors, Systems, and Applications III
Thomas George; M. Saif Islam; Achyut K. Dutta, Editor(s)