A surface-emitting laser diode device that oscillates in a direction perpendicular
to the substrate is provided. This surface-emitting laser diode device includes:
an active layer; a resonator structure including a first distributed Bragg reflector
and a second distributed Bragg reflector that face each other and sandwich the
active layer; a hole passage that extends from a first electrode to the active
layer; an electron passage that extends from a second electrode to the active layer;
a hole restricting structure that is located in the hole passage and defines a
region for confining holes to the active layer; and an optical mode control structure
that includes a non-oxide region provided in the resonator structure and an oxide
region surrounding the non-oxide region, each region containing Al as a constituent
element. In this surface-emitting laser diode, the area of the non-oxide region
is smaller than the area of the hole restricting structure.