发明名称 |
SURFACE-EMITTING LASER DEVICE, OPTICAL SCANNER DEVICE, AND IMAGE FORMING APPARATUS |
摘要 |
A surface-emitting laser device includes a lower reflector, a resonator structure having an active layer and an upper reflector on an inclined substrate, and an emission region emitting laser light enclosed by an electrode. The upper reflector includes a confinement structure having a current passing region enclosed by an oxide containing at least an oxide generated as a result of partial oxidation of a layer containing aluminum subject to selective oxidation, and a dielectric film formed within the emission region, the dielectric film at least enclosing a partial region including a center of the emission region. In viewing from a direction orthogonal to the emission region, a center of a region enclosed by the dielectric film is located at a position distant from the center of the emission region based on a size of the confinement structure relative to a direction orthogonal to an inclined axis of the inclined substrate.
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申请公布号 |
US2013033559(A1) |
申请公布日期 |
2013.02.07 |
申请号 |
US201213562896 |
申请日期 |
2012.07.31 |
申请人 |
RICOH COMPANY, LTD.,;SASAKI TOSHIHIDE;HARASAKA KAZUHIRO |
发明人 |
SASAKI TOSHIHIDE;HARASAKA KAZUHIRO |
分类号 |
B41J2/435;G02B26/08;H01S5/00 |
主分类号 |
B41J2/435 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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