Patent ID: 8351472
Filing Date: 2013-01-08
Classification: H01L,H01S

Abstract:
1. A semiconductor light emitting element comprising: a semiconductor substrate; an active layer for emitting and propagating light, said active layer being formed in a stripe shape above said semiconductor substrate; buried layers formed on both lateral sides of said active layer; a cladding layer formed above said active layer and said buried layers; a first electrode formed above said cladding layer; and a second electrode formed below said semiconductor substrate; wherein said active layer opens on two end facets formed by cleavage, said active layer providing optical gain over the entire length between said two end facets, said active layer making a predetermined angle to a normal direction of one end facet among said two end facets, said light being emitted from said one end facet, said semiconductor light emitting element further comprising a partially heating means for heating a predetermined length portion of said active layer along a direction of light propagation, said partially heating means being formed on said first electrode at a position closer to the other end facet than to said one end facet, heat generated by said partially heating means being conducted to said semiconductor substrate in a direction of thickness of said semiconductor light emitting element.