Patent ID: 6614824
Filing Date: 2003-09-02
Classification: B82Y,H01S

Abstract:
A nitride semiconductor laser device, comprising:n-type and p-type layers made of nitride semiconductor and formed on a substrate, and a light emitting layer provided between said n-type and p-type layers, said light emitting layer being formed of a well layer or a combination of well and barrier layers, at least the well layer among constituent layers of said light emitting layer being made of nitride semiconductor containing element X, N and Ga, wherein element X is at least one selected from the group consisting of As, P and Sb, in said nitride semiconductor containing said element X, N and Ga, element X having an atomic fraction smaller than that of said N, a maximum width through which current is to be injected into said light emitting layer via said p-type layer being from 1.0 &mgr;m to 4.0 &mgr;m, said nitride semiconductor laser device has a ridge structure, and a distance from a boundary between said light emitting layer and said p-type layer to a bottom of a ridge stripe is approximately 0 &mgr;m to 0.3 &mgr;m.