Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2011-06-07
2011-06-07
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S046013
Reexamination Certificate
active
07957444
ABSTRACT:
A surface-emission laser diode of a vertical-cavity surface-emission laser structure includes a substrate and a mesa structure formed on the substrate, the mesa structure including therein a current confinement structure, wherein the current confinement structure includes a conductive current confinement region and an insulation region surrounding the conductive current confinement region, the insulation region being an oxide of a semiconductor material forming the conductive current confinement region, and wherein a center of the current confinement region is offset from a center of the mesa structure in a plane perpendicular to a laser oscillation direction.
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Itoh Akihiro
Sato Shun'ichi
Cooper & Dunham LLP
Harvey Minsun
Nguyen Phillip
Ricoh & Company, Ltd.
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