发明授权
- 专利标题： Surface emitting laser, light source, and optical module
- 专利标题（中）： 表面发射激光，光源和光学模块
-
申请号： US13187838申请日： 2011-07-21
-
公开(公告)号： US08755422B2公开(公告)日： 2014-06-17
- 发明人: Hitoshi Shimizu , Yasumasa Kawakita
- 申请人： Hitoshi Shimizu , Yasumasa Kawakita
- 申请人地址： JP Tokyo
- 专利权人： Furukawa Electric Co., Ltd.
- 当前专利权人： Furukawa Electric Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Lowe Hauptman & Ham, LLP
- 优先权： JP2010-165302 20100722
- 主分类号： H01S5/183
- IPC分类号： H01S5/183
摘要：
A surface emitting laser includes lower and upper multilayer mirrors, first-conductivity-type and second-conductivity-type contact layers formed between the lower and the upper multilayer mirrors, an active layer formed between the first-conductivity-type and the second-conductivity-type contact layers, a current confinement layer formed between the second-conductivity-type contact layer and the active layer, and first and second composition gradient layers formed facing each other across the current confinement layer. The first composition gradient layer and the second composition gradient layer are formed such that bandgap energy of each of the layers is monotonically decreased from the current confinement layer to an adjacent layer and approach bandgap energy of the adjacent layer in a growth direction.
公开/授权文献
- US20120020383A1 SURFACE EMITTING LASER, LIGHT SOURCE, AND OPTICAL MODULE 公开/授权日：2012-01-26
信息查询
