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Performance of the 4.7-THz Local Oscillator with Quantum Cascade Laser on Board of SOFIA

Richter, Heiko and Greiner-Bär, Michael and Rösner, Kerstin and Hübers, H.-W. and Wienold, Martin and Schrottke, Lutz and Biermann, K. and Grahn, H. T. (2015) Performance of the 4.7-THz Local Oscillator with Quantum Cascade Laser on Board of SOFIA. IRMMW 2015, Hongkong.

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Abstract

— The design and the performance of a 4.7-THz local oscillator (LO) for the GREAT (German REceiver for Astronomy at Terahertz frequencies) heterodyne spectrometer on SOFIA, the Stratospheric Observatory for Infrared Astronomy, are presented. The LO is based on a quantum-cascade laser, which is mounted in a compact mechanical cryocooler. It delivers up to 150 µW output power into a nearly Gaussian shaped beam around the frequency of the fine structure line of neutral atomic oxygen, OI, at 4.7448 THz.

Item URL in elib:https://elib.dlr.de/101835/
Document Type:Conference or Workshop Item (Speech)
Title:Performance of the 4.7-THz Local Oscillator with Quantum Cascade Laser on Board of SOFIA
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Richter, HeikoHeiko.Richter (at) dlr.deUNSPECIFIED
Greiner-Bär, Michaelmichael.greiner-baer (at) dlr.deUNSPECIFIED
Rösner, Kerstinkerstin.roesner (at) dlr.deUNSPECIFIED
Hübers, H.-W.UNSPECIFIEDUNSPECIFIED
Wienold, MartinPDIUNSPECIFIED
Schrottke, LutzPDIUNSPECIFIED
Biermann, K.PDIUNSPECIFIED
Grahn, H. T.PDIUNSPECIFIED
Date:26 August 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:SOFIA, QCL, heterodyne reciever, THz
Event Title:IRMMW 2015
Event Location:Hongkong
Event Type:international Conference
Organizer:Chinese University of Hongkong
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems
Deposited By: Richter, Dr.rer.nat. Heiko
Deposited On:11 Jan 2016 06:42
Last Modified:11 Jan 2016 06:42

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