elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Frequency stabilization of a terahertz quantum-cascade laser to the Lamb dip of a molecular absorption line

Voigt, Robert and Wienold, Martin and Divya, Jayasankar and Drakinskiy, V. and Stake, Jan and Sobis, Peter and Schrottke, Lutz and Lü, Xiang and Grahn, Holger T. and Hübers, Heinz-Wilhelm (2023) Frequency stabilization of a terahertz quantum-cascade laser to the Lamb dip of a molecular absorption line. Optics Express, 31 (9), pp. 13888-13894. Optical Society of America. doi: 10.1364/OE.483883. ISSN 1094-4087.

[img] PDF - Published version
2MB

Official URL: https://opg.optica.org/oe/fulltext.cfm?uri=oe-31-9-13888&id=529040

Abstract

We demonstrate the frequency stabilization of a terahertz quantum-cascade laser (QCL) to the Lamb dip of the absorption line of a D2O rotational transition at 3.3809309 THz. To assess the quality of the frequency stabilization, a Schottky diode harmonic mixer is used to generate a downconverted QCL signal by mixing the laser emission with a multiplied microwave reference signal. This downconverted signal is directly measured by a spectrum analyzer showing a full width at half maximum of 350 kHz, which is eventually limited by high-frequency noise beyond the bandwidth of the stabilization loop.

Item URL in elib:https://elib.dlr.de/201730/
Document Type:Article
Title:Frequency stabilization of a terahertz quantum-cascade laser to the Lamb dip of a molecular absorption line
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Voigt, RobertUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wienold, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Divya, JayasankarChalmers University of Technology, SwedenUNSPECIFIEDUNSPECIFIED
Drakinskiy, V.Chalmers University of Technology, Goeteborg, SwedenUNSPECIFIEDUNSPECIFIED
Stake, JanChalmers University of TechnologyUNSPECIFIEDUNSPECIFIED
Sobis, PeterChalmers University of Technology, Goeteborg, SwedenUNSPECIFIEDUNSPECIFIED
Schrottke, LutzPaul-Drude-Institut für Festkörperelektronik, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Lü, XiangPaul-Drude-Institut für Festkörperelektronik, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Grahn, Holger T.Paul-Drude-Institut für Festkörperelektronik, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Hübers, Heinz-WilhelmUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:12 April 2023
Journal or Publication Title:Optics Express
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:31
DOI:10.1364/OE.483883
Page Range:pp. 13888-13894
Publisher:Optical Society of America
ISSN:1094-4087
Status:Published
Keywords:Spectroscopy, Stabilization, Lamb-dip, QCL, THz
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: Voigt, Robert
Deposited On:08 Jan 2024 11:06
Last Modified:08 Jan 2024 11:06

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.