SURFACE EMITTING SEMICONDUCTOR LASER ELEMENT

摘要

A surface emitting laser (100) is provided with an upper reflecting mirror (16) having a photonic crystal structure with a point defect at the center, and emits a laser beam from the side of a lower reflecting mirror (12). An upper electrode (20) is formed on the point defect at the center, and element resistance is reduced. A material transparent to the laser beam having an oscillation wavelength is used for a substrate (10). Emission efficiency is improved by reducing the element resistance of the photonic crystal surface emitting laser.