SEMICONDUCTOR LASER ELEMENT AND SEMICONDUCTOR LASER ARRAY

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor laser array beam source capable of providing a high power with high light condensing. SOLUTION: The semiconductor laser element 1 has a first conductivity clad layer 13, a second conductivity clad layer 17, and a quantum well active layer 15 sandwitched by the layer 13 and the layer 17. A plurality of second conductivity semiconductor regions 21 having a refractive index smaller than that of the layer 17 for laser light and a depth which does not reach the layer 15 are arranged in the layer 17 at predetermined intervals. COPYRIGHT: (C)2004,JPO&NCIPI