Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-10-25
2005-10-25
Harvey, Min Sun (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S092000, C372S096000
Reexamination Certificate
active
06959025
ABSTRACT:
A surface-emitting laser diode device that oscillates in a direction perpendicular to the substrate is provided. This surface-emitting laser diode device includes: an active layer; a resonator structure including a first distributed Bragg reflector and a second distributed Bragg reflector that face each other and sandwich the active layer; a hole passage that extends from a first electrode to the active layer; an electron passage that extends from a second electrode to the active layer; a hole restricting structure that is located in the hole passage and defines a region for confining holes to the active layer; and an optical mode control structure that includes a non-oxide region provided in the resonator structure and an oxide region surrounding the non-oxide region, each region containing Al as a constituent element. In this surface-emitting laser diode, the area of the non-oxide region is smaller than the area of the hole restricting structure.
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Jikutani Naoto
Sato Shun'ichi
Takahashi Takashi
Dickstein , Shapiro, Morin & Oshinsky, LLP
Flores-Ruiz Delma R.
Harvey Min Sun
Ricoh & Company, Ltd.
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