Patent ID: 6658040
Filing Date: 2003-12-02
Classification: H01S

Abstract:
A vertical cavity surface emitting laser (VCSEL) comprising:a top mirror structure having a surface; a light generation region; a bottom mirror structure for reflecting light toward said top mirror structure; a semiconductor portion having a surface that is disposed substantially planar with respect to the surface of the top mirror structure; a layer of isolatable material disposed in at least one of the bottom mirror structure and the top mirror structure, the layer of isolatable material having a conducting region; an insulating region having an aperture-defining surface for defining the conducting region, an inner portion, and an outer portion; and a single trench adjacent to the insulating region for use in generating the insulating region and for isolating the inner portion of the insulating region from the outer portion of the insulating region; wherein the trench has a continuous geometry for reducing the parasitic capacitance of the VCSEL.