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Phase Locking of 3.5-THz and 4.7-THz Quantum-Cascade Lasers Using a Schottky Diode Harmonic Mixer

Richter, Heiko and Rothbart, Nick and Wienold, Martin and Lü, Xiang and Schrottke, Lutz and Grahn, Holger T. and Jayasankar, Divya and Drakinskiy, Vladimir and Stake, Jan and Sobis, Peter and Hübers, Heinz-Wilhelm (2021) Phase Locking of 3.5-THz and 4.7-THz Quantum-Cascade Lasers Using a Schottky Diode Harmonic Mixer. In: 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021. IRMMW 2021, 2021-08-29 - 2021-09-03, Chengdu, China. doi: 10.1109/IRMMW-THz50926.2021.9566876. ISBN 978-172819424-0. ISSN 2162-2027.

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Abstract

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.

Item URL in elib:https://elib.dlr.de/143729/
Document Type:Conference or Workshop Item (Speech)
Title:Phase Locking of 3.5-THz and 4.7-THz Quantum-Cascade Lasers Using a Schottky Diode Harmonic Mixer
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Richter, HeikoUNSPECIFIEDhttps://orcid.org/0000-0002-3639-6997UNSPECIFIED
Rothbart, NickUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wienold, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lü, XiangPaul-Drude-Institut für Festkörperelektronik, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Schrottke, LutzPaul-Drude-Institut für Festkörperelektronik, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Grahn, Holger T.Paul-Drude-Institut für Festkörperelektronik, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Jayasankar, DivyaChalmers University of Technology, SwedenUNSPECIFIEDUNSPECIFIED
Drakinskiy, VladimirChalmers University of Technology, SwedenUNSPECIFIEDUNSPECIFIED
Stake, JanChalmers University of TechnologyUNSPECIFIEDUNSPECIFIED
Sobis, PeterOmnisys Instruments ABUNSPECIFIEDUNSPECIFIED
Hübers, Heinz-WilhelmUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:30 August 2021
Journal or Publication Title:46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1109/IRMMW-THz50926.2021.9566876
ISSN:2162-2027
ISBN:978-172819424-0
Status:Published
Keywords:THz, QCL, PLL, heterodyne, spectroscopy, stabilization
Event Title:IRMMW 2021
Event Location:Chengdu, China
Event Type:international Conference
Event Start Date:29 August 2021
Event End Date:3 September 2021
Organizer:University of Electronic Science and Technology of China
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Terahertz spectrometer for atomic oxygen in the mesosphere/thermosphere
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Richter, Dr.rer.nat. Heiko
Deposited On:01 Sep 2021 10:42
Last Modified:24 Apr 2024 20:43

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