Oberflächenemittierender Laser mit seitlicher Strominjektion

摘要

The invention relates to a surface-emitting laser (VCSEL) having lateral current injection. According to the invention, the pumping current (4) is guided from the decoupling side contact surface (2) in a first area (12) outside of the resonator volume in a manner that is predominantly parallel to the resonator axis and is conducted in a second area (13) in a manner that is predominantly perpendicular to the active volume (9). The invention also relates to a contact geometry, which effects an automatic regulation of the size of the active volume (9) according to the pumping current (4).