Patent ID: 6542526
Filing Date: 2003-04-01
Classification: B82Y,H01S

Abstract:
A semiconductor light emitting device composed of at least compound semiconductors, comprising:a first conduction type cladding layer; a second conduction type cladding layer; and a quantum-well active region which is interposed between said cladding layers and which has a well layer and barrier layers each having a forbidden band width larger than that of said well layer, said cladding layers and said quantum-well active region being formed by epitaxial growth on a first crystal having a hexagonal structure, wherein an n-type impurity is doped in said quantum-well active region, and the density of said n-type impurity is in a range of 1.5Ã—1019 cmâˆ’3 to 5.0Ã—1019 cmâˆ’3.