Patent ID: 6320893
Filing Date: 2001-11-20
Classification: H01S

Abstract:
A surface emitting semiconductor laser having a structure that top and bottom spacer layers are formed on both sides of an active layer and top and bottom reflection layers are formed on the top side of the top spacer layer and the bottom side of the bottom spacer layer respectively,wherein said surface emitting semiconductor laser has optical confinement layers provided on one or both contact surfaces between said top and bottom spacer layers and said top and bottom reflection films, andsaid optical confinement layers comprise a semiconductor layer having a thickness of 100 nm or less formed on the entire surface excepting the light emission area, said semiconductor layer consists of a material having a lattice constant similar to the one of the material of said top and bottom spacer layers and the one of the material of said top and bottom reflection films and having the refractive index smaller than the effective refractive index of the material of said top and bottom spacer layers and the material of said top and bottom reflection films.