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29 April 1999 High-frequency beam steering induced by transverse mode switching in VCSELs: optical gain effects
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Abstract
Static and dynamic characteristics of weakly index guided VCSELs in a multi-transverse mode regime are analyzed by using a model that takes into account all the transverse modes supported by the waveguide and a consistent spectral gain including many-body effects. Selection of a particular high order transverse mode by using azimuthal dependent current profiling can be obtained over a wide current range. The alternate current modulation of two orthogonal high order transverse modes is studied taking into account thermal effects. This current induced spatial switching leads to high frequency beam steering in the laser azimuthal direction.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Angel Valle, Paul C. T. Rees, Luis Pesquera, and Keith Alan Shore "High-frequency beam steering induced by transverse mode switching in VCSELs: optical gain effects", Proc. SPIE 3627, Vertical-Cavity Surface-Emitting Lasers III, (29 April 1999); https://doi.org/10.1117/12.347090
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