Patent ID: 6912237

Claim:
A semiconductor pumping laser component comprising: a semiconductor pumping laser device having a layered structure formed on a surface of a Gallium-Arsenide substrate and a resonator cavity including at least a portion of said layered structure and having its propagation axis oriented parallel to the surface of the Gallium-Arsenide substrate, said layered structure having an active layer with a quantum well structure with at least a portion thereof disposed within said resonator cavity, said active layer formed of one or more semiconductor materials, each such material including at least Gallium and Arsenide, said quantum well structure comprising at least one well layer having a thickness of 10 nm or more and at least one barrier layer, said resonator cavity and layered structure providing a spacing interval (Δλ FP ) of longitudinal modes for light propagating along the resonator's propagation axis; and a light feedback element optically coupled to the light generated by said semiconductor pumping laser device, said light feedback element having a reflectivity bandwidth that is greater than or equal to twice the spacing interval of longitudinal modes; and wherein said semiconductor pumping laser component generates light having a plurality of the longitudinal modes; and wherein the at least one well layer of said quantum well structure provides stable oscillation of said plurality of longitudinal modes.