发明名称 |
SURFACE EMITTING LASER ELEMENT, SURFACE EMITTING LASER ARRAY, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS |
摘要 |
In a surface emitting laser element, on a substrate whose normal direction of a principal surface is inclined, 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 length of the current passing through region is greater in the Y axis direction than in the X axis direction. 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.
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申请公布号 |
US2009285602(A1) |
申请公布日期 |
2009.11.19 |
申请号 |
US20090432872 |
申请日期 |
2009.04.30 |
申请人 |
RICOH COMPANY, LTD |
发明人 |
HARASAKA KAZUHIRO;SATO SHUNICHI;JIKUTANI NAOTO;ISHII TOSHIHIRO |
分类号 |
G03G15/04;H01S3/10;H01S5/00;H01S5/183;H01S5/187 |
主分类号 |
G03G15/04 |
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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