Patent ID: 7197203
Filing Date: 2007-03-27
Classification: H01L,H01S

Abstract:
1. An optical element comprising: a substrate; a surface-emitting type semiconductor laser that is provided above the substrate and includes a first mirror, an active layer and a second mirror formed in this order from the substrate; a first optical detection section that is formed above the substrate; a second optical detection section that is formed above the substrate and has a second photoabsorption layer; and an isolation layer formed between the surface-emitting type semiconductor laser and at least one of the first optical detection section and the second optical detection section, wherein the first optical detection section includes a first photoabsorption layer formed above the substrate and a photonic crystal section formed above or below the first photoabsorption layer, the photonic crystal section has one of a one-dimensional and a two-dimensional photonic crystal structure having a periodic refractive index distribution in a plane that intersects a direction of light incident upon the first optical detection section, wherein at least a part of the light incident upon the first optical detection section is distributed in a plane of the first photoabsorption layer and propagates therein.