发明名称 |
Surface emitting laser element, surface emitting laser array, optical scanning device, and image forming apparatus |
摘要 |
<p>In a surface emitting laser element (100), on an inclined substrate (101), a resonator structural body including an active layer (105), and a lower semiconductor DBR (103) and an upper semiconductor DBR (107) sandwiching the resonator structural body are stacked. A shape of a current passing-through region (108b) in an oxide confinement structure of the upper semiconductor DBR (107) is symmetrical to an axis passing through a center of the current passing-through region (108b) parallel to an X axis and symmetrical to an axis passing through the center of the current passing-through region (108b) parallel to a Y axis, and a thickness of an oxidized layer (108a) surrounding the current passing-through region (108b) is greater in the +Y direction than in the +X and -X directions. An opening width of a light outputting section (115) in the X axis direction is smaller than another opening width of the light outputting section (115) in the Y axis direction.
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申请公布号 |
EP2133965(A3) |
申请公布日期 |
2011.02.09 |
申请号 |
EP20090251536 |
申请日期 |
2009.06.11 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
SUGAWARA, SATORU;ISHII, TOSHIHIRO;HARASAKA, KAZUHIRO;SATO, SHUNICHI |
分类号 |
H01S5/183;H01S5/042 |
主分类号 |
H01S5/183 |
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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