THz transceiver characterization : LDRD project 139363 final report.

Technical Report · Tue Sep 01 00:00:00 EDT 2009

DOI:https://doi.org/10.2172/993890· OSTI ID:993890

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

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.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 993890
• Report Number(s): SAND2009-5858
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DESIGN
HETERODYNE RECEIVERS
LASERS
OSCILLATORS
PERFORMANCE
RECTIFIERS
SCHOTTKY BARRIER DIODES
STABILITY
THZ RANGE
WAVEGUIDES