A surface emitting laser device can further improve the light emission
efficiency thereof to enlarge the degree of freedom of the device. The
surface emitting laser device includes an active layer 103, a photonic
crystal layer disposed to be adjacent to the active layer, an electrode
108 disposed on the photonic crystal layer, and a plurality of light
emitting regions regulated by the electrode. The photonic crystal layer
is configured to include a first photonic crystal region 104 disposed
just under the electrode, and having a periodic refractive index
structure for resonance of light within a plane, and a second photonic
crystal region 105 disposed just under the light emitting region, and
having a periodic refractive index structure for emitting light in a
direction perpendicular to the plane.