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THz Quantum-Cascade Laser as Local Oscillator for SOFIA

Richter, Heiko and Greiner-Bär, Michael and Pavlov, Sergey and Semenov, A. D. and Wienold, Martin and Schrottke, L. and Giehler, M and Hey, R. and Grahn, H.-T. and Hübers, Heinz-Wilhelm (2011) THz Quantum-Cascade Laser as Local Oscillator for SOFIA. IRMMW 2011, 3 Oct - 7 Nov 2011, Houston, Texas, USA.

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Abstract

We report on the development of a compact local oscillator (LO) for operation on board of SOFIA, namely for GREAT, the German Receiver for Astronomy at Terahertz Frequencies. The LO combines a quantum-cascade laser (QCL) with a compact, low-input-power Stirling cooler. The output power is sufficient for pumping a hot-electron bolometer mixer. Frequency stabilization is achieved by locking to a molecular absorption line. Detectors operating at room temperature can be used for the stabilization as well. High-resolution molecular spectroscopic experiments demonstrate the usability as LO for SOFIA.

Document Type:Conference or Workshop Item (Speech)
Title:THz Quantum-Cascade Laser as Local Oscillator for SOFIA
Authors:
AuthorsInstitution or Email of Authors
Richter, HeikoHeiko.Richter@dlr.de
Greiner-Bär, Michaelmichael.greiner-baer@dlr.de
Pavlov, Sergeysergeij.pavlov@dlr.de
Semenov, A. D.alexeij.semenov@dlr.de
Wienold, MartinPDI
Schrottke, L.PDI
Giehler, MPDI
Hey, R.PDI
Grahn, H.-T.PDI
Hübers, Heinz-WilhelmTU, Heinz-Wilhelm.Huebers@dlr.de
Date:3 September 2011
Status:Published
Keywords:SOFIA, QCL, compact
Event Title:IRMMW 2011
Event Location:Houston, Texas, USA
Event Type:international Conference
Event Dates:3 Oct - 7 Nov 2011
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Sicherheitsrelevante Erdbeobachtung (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Terahertz and Infrared Sensors
Deposited By: Dr.rer.nat. Heiko Richter
Deposited On:14 Nov 2011 11:57
Last Modified:12 Dec 2013 21:24

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