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  4. Widely tunable micro-mechanical external-cavity diode laser emitting around 2.1 µm
 
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2008
Journal Article
Title

Widely tunable micro-mechanical external-cavity diode laser emitting around 2.1 µm

Other Title
Weit durchstimmbarer 2.1µm Diodenlaser mit micromechanischem externen Resonator
Abstract
A widely tunable (Delta lambda/lambda = 7%) micro-mechanical external cavity GaSb-based diode laser (mu ECL) emitting around 2.1 mu m is presented. A micro-machined grating with a rectangular grating profile, which can be tilted electrostatically, is employed as wavelength selective element within the external cavity using a Littrow configuration. An optimized grating profile leads to a high diffraction efficiency in the -1st diffraction order and therefore to a broad tuning range of 152 nm. The maximum output power of the fiber coupled mu ECL system varied only moderately between 22 and 10 mW across the tuning range.
Author(s)
Geerlings, E.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Rattunde, M.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Schmitz, J.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Kaufel, G.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Wagner, J.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Bläsi, B.
Kallweit, D.
Zappe, H.
Journal
IEEE Journal of Quantum Electronics  
DOI
10.1109/JQE.2008.2001927
Language
English
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Fraunhofer-Institut für Photonische Mikrosysteme IPMS  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Keyword(s)
  • external cavity

  • externer Resonator

  • GaSb

  • infrared diode laser

  • Infrarot-Diodenlaser

  • tuning range

  • Durchstimmbereich

  • micro-machine grating

  • Mikrosystemtechnik

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