Patent ID: 7693205

Claim:
A surface emitting laser comprising: a first reflective mirror constituting a lower mirror; a second reflective mirror constituting an upper mirror; an active layer formed between the first and the second reflective mirrors; and a substrate, on which the first and the second reflective mirrors and the active layer are formed, wherein the second reflective mirror has a periodic refractive index structure, in which a first medium having conductivity and second medium having a refractive index lower than that of the first medium is periodically provided in a plane parallel to a surface of the substrate, wherein a layer structure made of a third medium having a refractive index lower than that of the first medium is embedded in the first medium on a lower side of the periodic refractive index structure, and wherein the third medium is made of a material having the refractive index lower than that of the first medium by 10% or more and being transparent to a light emitted from the active layer.