@inproceedings{b3892bf0422f49b19843b47c2cc2d453,
title = "THz Schottky diode harmonic mixers for QCL phase-locking",
abstract = "A fundamental 1.9-2.8 THz Schottky diode mixer has been modified to enable high harmonic mixing, thus allowing use of the mixer for phase locking of a quantum cascade laser (QCL) to an stable external microwave source. Phase locking to a reference will transfer the spectral line profile of the reference to the THz source; this will control the phase precisely. Stabilizing a QCL for a single frequency operation will help to reduce the drift due to temperature and other external biases. The mixer can be used for several applications, such as, heterodyne interferometer in far-infrared range and high-resolution heterodyne spectroscopy. The design and characterization of the harmonic mixer will be presented. A conversion loss of 63 dB for harmonic mixing at N=9 and 45 dB for N=3 were measured with a 2 THz input signal.",
keywords = "Conversation Loss, Harmonic Mixer, Phase locking, Video Response",
author = "Bulcha, {Berhanu T.} and Kurtz, {David S.} and Christopher Groppi and Hesler, {Jeffrey L.} and Barker, {N. Scott}",
year = "2013",
month = dec,
day = "1",
doi = "10.1109/IRMMW-THz.2013.6665858",
language = "English (US)",
isbn = "9781467347174",
series = "International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz",
booktitle = "2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013",
note = "2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013 ; Conference date: 01-09-2013 Through 06-09-2013",
}