Patent ID: 8736652

Claim:
A surface-emitting laser device, comprising: a lower multilayer film reflecting mirror; a resonator structure having an active layer; an upper multilayer film reflecting mirror; a contact layer on which an electrode is provided; a substrate on which the lower multilayer film reflecting mirror, the resonator structure, the upper multilayer film reflecting mirror, and the contact layer are laminated; and a transparent dielectric layer provided in an emitting region surrounded by the electrode and configured to cause a reflectance at a peripheral part to be different from a reflectance at a central part in the emitting region; wherein a thickness of the contact layer is different between a region having a relatively high reflectance and a region having a relatively low reflectance in the emitting region, and a difference in an optical thickness of the contact layer between the region having the relatively high reflectance and the region having the relatively low reflectance in the emitting region is less than a one quarter oscillation wavelength of laser light emitted from the emitting region, wherein the contact layer is provided on a high refractive index layer of the upper multilayer film reflecting mirror, wherein a total optical thickness of the high refractive index layer and the contact layer in the region having the relatively low reflectance is deviated from an odd number multiple of a one quarter oscillation wavelength of laser light emitted from the emitting region, and a reflectance difference between the region having the relatively high reflectance and the region having the relatively low reflectance is greater than a case in which the total optical thickness of the high refractive index layer and the contact layer is the odd number multiple of the one quarter oscillation wavelength.