Phase Locking of 3.5-THz and 4.7-THz Quantum-Cascade Lasers Using a Schottky Diode Harmonic Mixer
Paper in proceeding, 2021
High frequency accuracy and stability are important requirements for local oscillators in terahertz heterodyne spectrometers. We report on a phase-locked loop for quantum-cascade lasers (QCLs) operating at 3.5 and 4.7 THz, two very important frequencies in atmospheric science and astronomy. The QCLs are locked to the multiplied output of a frequency synthesizer using a Schottky diode harmonic mixer.
Mixers
Space Instrumentation
Schottky diode
Heterodyne receivers
Terahertz
Author
Heiko Richter
German Aerospace Center (DLR)
Nick Rothbart
German Aerospace Center (DLR)
Martin Wienold
German Aerospace Center (DLR)
Xiang Lü
Paul Drude Institut fur Festkorperelektronik
Lutz Schrottke
Paul Drude Institut fur Festkorperelektronik
Holger T. Grahn
Paul Drude Institut fur Festkorperelektronik
Divya Jayasankar
GigaHertz Centre
RISE Research Institutes of Sweden
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
Vladimir Drakinskiy
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
Jan Stake
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
Peter Sobis
Omnisys Instruments
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
Heinz-Wilhelm Hübers
German Aerospace Center (DLR)
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
21622027 (ISSN) 21622035 (eISSN)
Vol. 2021-August978-1-7281-9424-0 (ISBN)
46th International conference on Infrared, Millimeter, and Terahertz waves
Chengdu, China,
Chengdu, China,
THz Schottky diode mixers for high resolution FIR spectroscopy
Swedish National Space Board (170/17), 2018-01-01 -- 2019-12-31.
Areas of Advance
Information and Communication Technology
Infrastructure
Kollberg Laboratory
Nanofabrication Laboratory
Subject Categories
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/IRMMW-THz50926.2021.9566876