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Combining external cavity quantum cascade lasers and MOEMS technology: An approach for miniaturization and fast wavelength scanning

 
: Ambacher, O.; Ostendorf, R.; Bleh, D.; Merten, A.; Grahmann, J.; Schmidt, R.; Kunzer, M.; Hugger, S.; Wagner, J.

:

IEEE Photonics Society; Institute of Electrical and Electronics Engineers -IEEE-:
International Conference on Optical MEMS and Nanophotonics, OMN 2014 : 17-21 August 2014, Glasgow, Scotland; Proceedings
Piscataway, NJ: IEEE, 2014
ISBN: 978-0-9928-4140-9 (Print)
ISBN: 978-0-9928-4141-6
ISBN: 978-0-9928-4142-3
ISBN: 978-1-4799-3737-0
pp.91-92
International Conference on Optical MEMS and Nanophotonics (OMN) <2014, Glasgow>
English
Conference Paper
Fraunhofer IAF ()
Fraunhofer IPMS ()

Abstract
In order to realize a spectrally broad band and rapid tunable spectrometer in the MIR (3-12 m wavelength range), we aim for the combination of a quantum cascade laser with a micro-opto-electro-mechanical scanning grating. The scanning grating consists of a very small diffraction grating oscillating at its resonance frequency. It serves as wavelength selective feedback to rapidly tune the quantum cascade laser. Composed together, both parts build an external cavity laser in Littrow-configuration. Thanks to the compactness of the micro-opto-electro-mechanical system, portable and cost effective spectrometers can be realized.

: http://publica.fraunhofer.de/documents/N-351258.html