Patent ID: 8780950
Filing Date: 2014-07-15
Classification: H01S

Abstract:
1. A surface emitting semiconductor laser comprising: a substrate; a first semiconductor multi-layer reflector formed on the substrate and including a pair of a high refractive index layer having a relatively high refractive index and a low refractive index layer having a relatively low refractive index which are laminated; a semi-insulating i type AlGaAs layer formed on the first semiconductor multi-layer reflector and having an optical film thickness larger than an oscillation wavelength; an n type semiconductor layer formed on the AlGaAs layer, not having a deep level due to an impurity, or the deep level being higher than a Γ level, and capable of having a lattice matching with the substrate; an active region formed on the semiconductor layer; a p type second semiconductor multi-layer reflector formed on the active region and including a pair of a high refractive index layer having a relatively high refractive index and a low refractive index layer having a relatively low refractive index which are laminated; an n side first electrode electrically connected to the semiconductor layer; and a p side second electrode electrically connected to the second semiconductor multi-layer reflector; wherein