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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bulcha, B.T. Kurtz, D.S. Groppi, C. Hesler, J.L. Barker, N.S. |
| Copyright Year | 2013 |
| Description | Author affiliation: Univ. of Virginia, Charlottesville, VA, USA (Barker, N.S.) || Arizona State, Tempe, AZ, USA (Groppi, C.) || Virginia Diodes Inc., Charlottesville, VA, USA (Bulcha, B.T.; Kurtz, D.S.; Hesler, J.L.) |
| 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. |
| Starting Page | 1 |
| Ending Page | 2 |
| File Size | 750149 |
| Page Count | 2 |
| File Format | |
| ISBN | 9781467347174 |
| ISSN | 21622035 |
| DOI | 10.1109/IRMMW-THz.2013.6665858 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-09-01 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Mixers Harmonic analysis Quantum cascade lasers Loss measurement Couplings Current measurement Optical waveguides Phase locking Harmonic Mixer Video Response Conversation Loss |
| Content Type | Text |
| Resource Type | Article |
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