THz transceiver characterization : LDRD project 139363 final report.

Nordquist, Christopher Daniel ; Wanke, Michael Clement ; Cich, Michael Joseph ; Reno, John Louis ; Fuller, Charles T. ; Wendt, Joel Robert ; Lee, Mark ; Grine, Albert D.

关键词: SCHOTTKY BARRIER DIODES;    LASERS;    PERFORMANCE;    THZ RANGE;    DESIGN;    HETERODYNE RECEIVERS;    OSCILLATORS;    RECTIFIERS;    STABILITY;    WAVEGUIDES;   

DOI  :  10.2172/993890
RP-ID  :  SAND2009-5858
PID  :  OSTI ID: 993890
Others  :  TRN: US201101%%110

学科分类：工程和技术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

LDRD Project 139363 supported experiments to quantify the performance characteristics of monolithically integrated Schottky diode + quantum cascade laser (QCL) heterodyne mixers at terahertz (THz) frequencies. These integrated mixers are the first all-semiconductor THz devices to successfully incorporate a rectifying diode directly into the optical waveguide of a QCL, obviating the conventional optical coupling between a THz local oscillator and rectifier in a heterodyne mixer system. This integrated mixer was shown to function as a true heterodyne receiver of an externally received THz signal, a breakthrough which may lead to more widespread acceptance of this new THz technology paradigm. In addition, questions about QCL mode shifting in response to temperature, bias, and external feedback, and to what extent internal frequency locking can improve stability have been answered under this project.