SEMICONDUCTOR LASER ELEMENT

摘要

A semiconductor laser element has a laminate structure that is formed by sequentially laminating a first conductive type semiconductor layer, an active layer and a second conductive type (different from the first conductive type) semiconductor layer. It has a waveguide area for guiding light in one direction and laser resonating resonator surfaces at the opposite ends. The laminate structure has at one end, a non-resonator surface separate from the resonator surfaces and formed so as to include an active layer sectional surface. The active layer section of the non-resonator surface is covered with a light shielding layer.