| 摘要 |
The present invention aims at providing a light source for a semiconductor laser beam scanner having high resolution in scanning and a high degree of mounting freedom, and suitable for emitting a laser beam from the surface. Therefore, a surface emission type semiconductor laser includes at least a first mirror 102, an active layer 103, a current constriction layer 113, a contact layer 106, and a second mirror 111, which are formed on a semiconductor substrate 101; wherein the current constriction layer 113 is made of a stripe AlAs layer 105, and an Al oxide layer 108 formed to surround the AlAs layer 105; the region of the contact layer 106, which overlaps the Al oxide layer, is formed in a comb shape 109, and independent contact electrodes 110 are respectively formed on the upper surfaces of the teeth of the comb shape 109 of the contact layer. <IMAGE> |
