Surface-emitting laser module, optical scanner device, and image forming apparatus

摘要

A disclosed surface-emitting laser module includes a surface-emitting laser (40,340) formed on a substrate to emit light perpendicular to its surface, a package (21,321,521) including a recess portion in which the substrate having the surface-emitting laser is arranged, and a transparent substrate (22,322,522) arranged to cover the recess portion of the package and the substrate having the surface-emitting laser such that the transparent substrate and the package are connected on a light emitting side of the surface-emitting laser. In the surface-emitting laser module, a high reflectance region and a low reflectance region (111) are formed within a region enclosed by an electrode on an upper part of a mesa of the surface-emitting laser, and the transparent substrate is slanted to the surface of the substrate having the surface-emitting laser in a polarization direction of the light emitted from the surface-emitting laser determined by the high reflectance region and the low reflectance region.