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Transverse and Polarization Mode Selection in VCSELs

AutorMulet, Josep; Mirasso, Claudio R. ; Balle, Salvador ; San Miguel, Maxi
Palabras claveVCSEL
Transverse Modes
Laser Switch-on
Polarization E
Fecha de publicación2001
EditorSociety of Photo-Optical Instrumentation Engineers
CitaciónProceedings of SPIE 4283: 139-149 (2001)
ResumenWe develop a mesoscopic model of semiconductor dynamics for vertical-cavity surface-emitting lasers which allows us to describe polarization and transverse mode dynamics simultaneously. Within this model, we study the selection processes and the turn-on delay for the switch-on of di erent transverse modes in gain-guided VCSELs. We consider di erent active-region diameters, excitation conditions and current shapes. Following the application of the current pulse, transverse modes become excited in a quite de nite sequence. After the turn-on, the VCSEL initially switcheson in the fundamental transverse mode, but higher-order transverse modes become excited later. In general, the results obtained are in qualitative agreement with experiments reported recently. Finally, we discuss the current shape dependence on the transverse mode selection at threshold.
Versión del editorhttp://dx.doi.org/10.1117/12.432559
URIhttp://hdl.handle.net/10261/48071
DOI10.1117/12.432559
ISSN0277-786X
Aparece en las colecciones: (IMEDEA) Comunicaciones congresos
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