Coherent light generators – Particular beam control device – Scanning
Reexamination Certificate
2011-07-12
2011-07-12
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular beam control device
Scanning
C372S050124, C372S050110, C372S045011, C372S045010
Reexamination Certificate
active
07978739
ABSTRACT:
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.
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Harasaka Kazuhiro
Ishii Toshihiro
Sato Shun'ichi
Sugawara Satoru
Cooper & Dunham LLP
Harvey Minsun
Ricoh & Company, Ltd.
Stafford Patrick
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