Patent ID: 8098703
Filing Date: 2012-01-17
Classification: B82Y,H01S

Abstract:
1. A laser diode comprising a laminate configuration including a lower multilayer reflecting mirror, an active layer and an upper multilayer reflecting mirror in order from a substrate side, wherein the laminate configuration includes a columnar mesa section including an upper part of the lower multilayer reflecting mirror, the active layer and the upper multilayer reflecting mirror, and the lower multilayer reflecting mirror includes a first lower multilayer mirror section and a second lower multilayer mirror section with each having a plurality of pairs of a low refractive index layer and a high refractive index layer, and a third lower multilayer mirror section disposed between the first and second multilayer mirror sections and having a plurality of pairs of the low refractive index layer and the high refractive index layer and a plurality of oxidation layers nonuniformly distributed in a direction rotating around a central axis of the mesa section in a region except for a central region of one or more of the low refractive index layers of the third multilayer mirror section.