| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor laser capable of reducing working voltage.SOLUTION: The semiconductor laser includes: a semiconductor layer which is formed over a substrate including an active layer; a carrier injection layer which is formed on the semiconductor layer including a transparent conductive film for injecting a charge carrier into the active layer; an optical field adjustment layer which is disposed in a selectively area on the carrier injection layer for adjusting an optical field of a laser beam, and which has an insulation property; a first electrode electrically connected to a substrate; and a second electrode electrically connected to the carrier injection layer.SELECTED DRAWING: Figure 1 |
