Patent ID: 7817696

Claim:
A surface emitting laser comprising: a single current injection opening area used for the laser, which is provided in a mesa, wherein the single current injection opening area used for the laser is electrically and optically isolated from a current injection opening area used for other lasers, which are formed on a same substrate; the surface emitting laser comprising: an active layer for emitting light resulted from current injection; a first reflector and a second reflector provided so as to sandwich the active layer therebetween; an n electrode and a p electrode for injecting current into the active layer; an ion-implanted nonconductive high-resistance area provided so as to surround the current injection opening area; and a nonconductive oxidized layer extending from a side wall of the mesa to an interior of the mesa, and a half cross section in which the nonconductive oxidized layer does not appear is present among radial half cross sections extending from a substantial center of the current injection opening area to an outer periphery of the surface emitting laser, which cross sections are interrupted within a region where a laser emitting light is present.