Patent ID: 6664571
Filing Date: 2003-12-16
Classification: H01L

Abstract:
Surface-emitting emission source with an active layer used to create optical radiation that is positioned between a confinement layer consisting of semi-conductor material of conductivity type (n; p) and a confinement layer consisting of semi-conductor material of the opposite conductivity type (p; n) to the above (n; p), whereby the created emission contains emission components in the emission source spreading essentially in adirection perpendicular to a layer plane of the active layer and an emission component spreading in a direction essentially parallel to this layer plane whereby the emission source includes a surface essentially parallel to the layer plane of the active layer from which the emission components spreading in the direction essentially perpendicular to this layer plane exit, and whereby an attenuation device is present to suppress the emission components spreading in direction parallel to the layer plane of the active layer.