Laser emmission component with injection zone of limited width

摘要

The 1.3-1.55 mu m vertical cavity surface emitting laser (VCSEL) component has an active layer (3) with an injection zone width (d) less than the component width, a radiation intensifying medium and two mirrors which are reflective at the emission wavelength and which are located respectively above and below the intensifying medium. The intensifying medium includes a circular barrier (8) facing the active material (3), the barrier preventing current passage and delimiting, at its centre facing the injection zone, a current passage channel of width (c) less than the injection zone width (d). Also claimed are six processes for the production of the above VCSEL.