Invention Grant
US08594146B2 Surface emitting laser element, surface emitting laser array, optical scanning device, and image forming apparatus
有权
表面发射激光元件,表面发射激光器阵列,光学扫描装置和成像装置
- Patent Title: Surface emitting laser element, surface emitting laser array, optical scanning device, and image forming apparatus
- Patent Title (中): 表面发射激光元件,表面发射激光器阵列,光学扫描装置和成像装置
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Application No.: US12865951Application Date: 2009-02-09
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Publication No.: US08594146B2Publication Date: 2013-11-26
- Inventor: Naoto Jikutani , Satoru Sugawara , Shunichi Sato
- Applicant: Naoto Jikutani , Satoru Sugawara , Shunichi Sato
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2008-029877 20080212; JP2008-112494 20080423; JP2008-138419 20080527; JP2008-287101 20081107; JP2008-287123 20081107
- International Application: PCT/JP2009/052457 WO 20090209
- International Announcement: WO2009/102048 WO 20090820
- Main IPC: H01S5/00
- IPC: H01S5/00

Abstract:
A surface emitting laser element is disclosed. The surface emitting laser element includes a resonator structural body including an active layer, first and second semiconductor distributed Bragg reflectors which sandwich the resonator structural body, and a confinement structure which can confine an injection current and a lateral mode of oscillation light at the same time by being formed with selective oxidation of a layer to be selectively oxidized containing aluminum in the first semiconductor distributed Bragg reflector. A thickness of the layer to be selectively oxidized is 28 nm, and a temperature when an oscillation threshold current becomes a minimum value is approximately 17° C.
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