Novel surface-emitting GaAs/AlGaAs laser diode beam steering device based on surface mode emission

Anton Koeck; Matthias Rosenberger; Claire F. Gmachl; Erich Gornik; C. Thanner; Lutz Korte

doi:10.1117/12.162805

19 November 1993 Novel surface-emitting GaAs/AlGaAs laser diode beam steering device based on surface mode emission

Anton Koeck, Matthias Rosenberger, Claire F. Gmachl, Erich Gornik, C. Thanner, Lutz Korte

Proceedings Volume 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II; (1993) https://doi.org/10.1117/12.162805
Event: Physical Concepts of Materials for Novel Optoelectronic Device Applications II, 1993, Trieste, Italy

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).

Citation Download Citation

Anton Koeck, Matthias Rosenberger, Claire F. Gmachl, Erich Gornik, C. Thanner, and Lutz Korte "Novel surface-emitting GaAs/AlGaAs laser diode beam steering device based on surface mode emission", Proc. SPIE 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II, (19 November 1993); https://doi.org/10.1117/12.162805

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