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

A. Köck, M. Rosenberger, C. Gmachl, E. Gornik, C. Thanner, L. Korte

Research output: Contribution to journalConference article

1 Scopus citations

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°.

Original languageEnglish (US)
Pages (from-to)460-467
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume1985
DOIs
StatePublished - Jan 1 1993
Externally publishedYes
EventPhysical Concepts and Materials for Novel Optoelectronic Device Applications II 1993 - Trieste, Italy
Duration: May 23 1993May 28 1993

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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