A novel surface emitting GaAs/AIGaAs laser diode beam steering device based on surface mode emission

A novel surface emitting GaAs/AIGaAs laser diode beam steering device based on surface mode emission

We present a novel surface emitting laser diode beam steering device based on the excitation and emission of surface modes. This new device is a wavelength tunable GaAs/AlGaAs laser diode, which is modified to allow a coupling of the laser mode to a transverse electric polarized surface mode. A stee...

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Bibliographische Detailangaben
Hauptverfasser: Kock, A., Gmachl, C., Rosenberger, M., Gormik, E., Thanner, C., Korte, L.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Beam steering
Diode lasers
Gallium arsenide
Laser excitation
Laser modes
Optical coupling
Polarization
Surface emitting lasers
Surface waves
Tunable circuits and devices
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Zusammenfassung:We present a novel surface emitting laser diode beam steering device based on the excitation and emission of surface modes. This new device is a wavelength tunable GaAs/AlGaAs laser diode, which is modified to allow a coupling of the laser mode to a transverse electric polarized surface mode. A steering of the surface emitted farfield pattern is achieved by a variation of the emission wavelength. By electrically switching the emission wavelength from 877.54 run to 879.13 nm the dominant surface emitted peak is steered by 0.4°.