| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser element by using nitride semiconductor for realizing laser oscillation by first forming an adequate optical resonance face as a reflective mirror. SOLUTION: A nitride semiconductor (InXAlYGa1-X-YN, 0<=X, 0<=Y, X+Y<=1) is laminated on a substrate in the laser element, and the edge face of the nitride semiconductor, which is etched almost vertically to the substrate, functions as an optical resonance face for the laser element. A dielectric multilayer film is formed on at least one of optical resonance faces, so that reflectivity of the optical resonance face is enhanced, while the laser oscillation is carried out.
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