发明授权
- 专利标题: Semiconductor laser element
- 专利标题(中): 半导体激光元件
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申请号: US14096782申请日: 2013-12-04
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公开(公告)号: US09065252B2公开(公告)日: 2015-06-23
- 发明人: Takashi Miyoshi
- 申请人: NICHIA CORPORATION
- 申请人地址: JP Anan-shi
- 专利权人: NICHIA CORPORATION
- 当前专利权人: NICHIA CORPORATION
- 当前专利权人地址: JP Anan-shi
- 代理机构: Foley & Lardner LLP
- 优先权: JPP2012-267105 20121206
- 主分类号: H01S5/30
- IPC分类号: H01S5/30 ; H01S5/343 ; H01S5/22 ; B82Y20/00 ; H01S5/042 ; H01S5/20 ; H01S5/32
摘要:
A semiconductor laser element includes: a light emitting layer of a nitride semiconductor that is placed above a substrate of GaN and has a refractive index higher than the substrate, wherein the semiconductor laser element further includes the following layers between the substrate and the light emitting layer in an order from the substrate: a first nitride semiconductor layer of AlGaN; a second nitride semiconductor layer of AlGaN having an Al ratio higher than the first nitride semiconductor layer; a third nitride semiconductor layer of an InGaN; and a fourth nitride semiconductor layer of AlGaN having an Al ratio higher than the first nitride semiconductor layer and having a thickness greater than the second nitride semiconductor layer.
公开/授权文献
- US20140161145A1 SEMICONDUCTOR LASER ELEMENT 公开/授权日:2014-06-12
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