Surface-emitting laser and surface-emitting laser array

Abstract

A surface-emitting laser according to one embodiment of the present disclosure includes a first DBR layer, a second DBR layer, an active layer, a first spacer layer, a second spacer layer, and a tunnel junction layer. The active layer is disposed between the first DBR layer and the second DBR layer. The first spacer layer is disposed between the active layer and the first DBR layer. The second spacer layer is disposed between the active layer and the second DBR layer. The tunnel junction layer is disposed between the active layer and the second DBR layer, and is surrounded by the second spacer layer. The second spacer layer and a portion of a side surface of the tunnel junction layer have an air gap therebetween.

Dependencies are inferred from the claim text.