Patent ID: 8526480

Claim:
A semiconductor laser device comprising: an optically pumped surface emitting vertical emitter having at least one active radiation-generating vertical emitter layer which is spaced apart from a pump radiation layer in a vertical main radiation direction, the optically pumped surface emitting vertical emitter emitting in the vertical main radiation direction; and at least monolithically integrated pump radiation source, comprising the pump radiation layer, for optically pumping the vertical emitter, the pump radiation source emitting pump radiation in a pump main radiation direction extending transversely with respect to the vertical main radiation direction; wherein at least one vertical section of the pump radiation source is configured in an index-guiding manner for the pump radiation in a lateral direction transversely with respect to the pump main radiation direction and transversely with respect to the vertical main radiation direction; wherein the vertical section of the pump radiation source comprises a waveguide extending in the pump main radiation direction, said waveguide having a cross section which is limited in the lateral direction and in the vertical main radiation direction, and wherein a width of the waveguide in the lateral direction is smaller than 10 vacuum wavelengths of the pump radiation; wherein the semiconductor laser device is partly removed in a region of the at least one monolithically integrated pump radiation source and the waveguide is formed by an uncovered semiconductor strip.