Patent ID: 8675271
Filing Date: 2014-03-18
Classification: B41J,B82Y,H01S

Abstract:
1. A surface-emitting laser element comprising: an emission region configured to emit a laser beam to an outside of the surface-emitting laser element, the emission region having a shape which, in its entirety, corresponds to an inside of a p-side electrode; and a high reflectance region including a first dielectric film having a first refractive index and a second dielectric film having a second refractive index differing from the first refractive index, the first dielectric film and the second dielectric film being stacked within the emission region to provide a high reflectance, wherein the high reflectance region is formed in a region including a central portion of the emission region and is configured to include shape anisotropy in two orthogonal directions in a plane in parallel with the emission region, and the dimensions of the emission region are greater than those of the high reflectance region.