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Proceedings Paper

Novel surface-emitting GaAs/AlGaAs laser diode beam steering device based on surface mode emission
Author(s): Anton Koeck; Matthias Rosenberger; Claire F. Gmachl; Erich Gornik; C. Thanner; Lutz Korte
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Paper Abstract

A novel surface emitting laser diode beam steering device based on the excitation and emission of surface modes is presented. This new device is a longitudinally segmented wavelength tunable GaAs/AlGaAs double heterostructure laser diode, which is modified to allow a coupling of the laser mode to a transverse electric polarized surface mode. This results in surface emission with very narrow beam divergence. A steering of the surface emitted farfield pattern is achieved by a variation of the emission wavelength: By electrically changing the emission wavelength from 877.54 nm to 879.13 nm the dominant surface emitted peak is steered by 0.4 degree(s).

Paper Details

Date Published: 19 November 1993
PDF: 8 pages
Proc. SPIE 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II, (19 November 1993); doi: 10.1117/12.162805
Show Author Affiliations
Anton Koeck, Wr. Neustaedter Bildungs-und Forschungsg.m.b.H (Austria)
Matthias Rosenberger, Technische Univ. Muenchen (Germany)
Claire F. Gmachl, Technische Univ. Muenchen (Germany)
Erich Gornik, Technische Univ. Muenchen (Germany)
C. Thanner, Siemens AG (Germany)
Lutz Korte, Siemens AG (Germany)


Published in SPIE Proceedings Vol. 1985:
Physical Concepts and Materials for Novel Optoelectronic Device Applications II
Fabio Beltram; Erich Gornik, Editor(s)

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