Patent ID: 8059689

Claim:
A vertical cavity surface emitting laser comprising: a substrate; a first semiconductor multilayer reflector that is a first conductive type and formed on the substrate; an active region formed on the first semiconductor multilayer reflector; a second semiconductor multilayer reflector that is a second conductive type and formed on the active region; a current narrowing layer that is located between the first and second semiconductor multilayer reflectors, and in that a conductive region which has anisotropy in a long side direction and a short side direction within the surface which is parallel to a principal surface of the substrate is formed; and a convex lens member that is formed in a beam window which emits a light on the second multilayer reflector, and that has anisotropy in a long side direction and a short side direction within a surface which is parallel to the principal surface of the substrate; the long side direction and the short side direction of the conductive region corresponding to the long side direction and the short side direction of the convex lens member respectively, and the curvature in the short side direction of the convex lens member being larger than the curvature in the long side direction.