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Characterization of new components for a miniaturized heterodyne infrared spectrometer

: Krause, P.; Sonnabend, G.; Labadie, L.; Sornig, M.; Thomson, R.; Arriola, A.; Rodenas, A.; Hewagama, T.; Rutz, F.


Ramsay, S.K. (Ed.) ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Ground-based and Airborne Instrumentation for Astronomy V : 22–26 June 2014, Montréal, Canada
Bellingham, WA: SPIE, 2014 (Proceedings of SPIE 9147)
ISBN: 978-0-8194-9615-7
Paper 91475H, 11 S.
Conference "Ground-Based and Airborne Instrumentation for Astronomy"<5, 2014, Montréal>
Fraunhofer IAF ()
heterodyne spectroscopy; waveguides; infrared

We report on the development and testing of the building blocks of a possible compact heterodyne setup in the midinfrared, which becomes particularly relevant for flight instrumentation. The local oscillator is a Quantum Cascade Laser (QCL) source at 8.6 µm operable at room temperature. The beam combination of the source signal and the local oscillator will occur by means of integrated optics for the 10 µm range, which was characterized in the lab. In addition we investigate the use of superlattice detectors in a heterodyne instrument. This work shows that these different new components can become valuable tools for a compact heterodyne setup.