发明授权
US07978739B2 Surface emitting laser element, surface emitting laser array, optical scanning device, and image forming apparatus 有权
表面发射激光元件,表面发射激光器阵列,光学扫描装置和成像装置

Surface emitting laser element, surface emitting laser array, optical scanning device, and image forming apparatus
摘要:
In a surface emitting laser element, on an inclined substrate, a resonator structural body including an active layer, and a lower semiconductor DBR and an upper semiconductor DBR sandwiching the resonator structural body are stacked. A shape of a current passing-through region in an oxide confinement structure of the upper semiconductor DBR is symmetrical to an axis passing through a center of the current passing-through region parallel to an X axis and symmetrical to an axis passing through the center of the current passing-through region parallel to a Y axis, and a thickness of an oxidized layer surrounding the current passing-through region is greater in the +Y direction than in the +X and −X directions. An opening width of a light outputting section in the X axis direction is smaller than another opening width of the light outputting section in the Y axis direction.
信息查询
0/0