Laser device, laser device array, and method of producing a laser device

Abstract

[Object] To provide a laser device that has a concave mirror structure and exhibits excellent optical characteristics, a laser device array, and a method of producing the laser device. [Solving Means] A laser device according to the present technology includes: a first light-reflecting layer; a second light-reflecting layer; and a stacked body. The stacked body includes an active layer, a lens being provided on a first surface on a side of the first light-reflecting layer. The lens has a lens shape protruding toward a side of the first light-reflecting layer with a first direction as a longitudinal direction and a second direction as a lateral direction, a central portion of the lens in the first direction having a first width that is the shortest width along the second direction, a non-central portion of the lens in the first direction having a second width that is the largest width along the second direction, the lens having a shape in which a height thereof is uniform or the central portion is higher than an end portion, a radius of curvature of an apex of the lens in the second direction being uniform. The first light-reflecting layer is stacked on the first surface to form a concave mirror having a concave surface shape on the lens.