Patent ID: 8035114
Filing Date: 2011-10-11
Classification: H01S

Abstract:
1. An optical device comprising: a surface-emitting type semiconductor laser section; at least one isolation section formed above the surface-emitting type semiconductor laser section; and a photodetector section formed above the isolation section, wherein the surface-emitting type semiconductor laser section includes a first mirror, an active layer formed above the first mirror and a second mirror, which has a top most layer composed of p-type Al the photodetector section includes a first contact layer, which is composed of a n-type GaAs or n-type Al the isolation section includes a first isolation layer composed of n-type GaAs, and a second isolation layer formed above the first isolation layer and composed of p-type Al the energy at an upper end of the valence band of the first isolation layer is higher than the energy at an upper end of the valence band of the second isolation layer.