发明申请
- 专利标题: Surface-emitting laser light source using two-dimensional photonic crystal
- 专利标题(中): 表面发射激光光源采用二维光子晶体
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申请号: US13137693申请日: 2011-09-02
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公开(公告)号: US20120002692A1公开(公告)日: 2012-01-05
- 发明人: Susumu Noda , Eiji Miyai , Dai Ohnishi
- 申请人: Susumu Noda , Eiji Miyai , Dai Ohnishi
- 申请人地址: JP Kyoto-shi JP Kyoto-shi
- 专利权人: ROHM Co., Ltd.,Kyoto University
- 当前专利权人: ROHM Co., Ltd.,Kyoto University
- 当前专利权人地址: JP Kyoto-shi JP Kyoto-shi
- 优先权: JP2005-255878 20050905; JP2005-374208 20051227
- 主分类号: H01S5/02
- IPC分类号: H01S5/02 ; H01L21/3065
摘要:
The present invention intends to provide a surface-emitting laser light source using a two-dimensional photonic crystal in which the efficiency of extracting light in a direction perpendicular to the surface is high. In a laser light source provided with a two-dimensional photonic crystal layer created from a plate-shaped matrix body in which a large number of holes are periodically arranged and an active layer arranged on one side of the two-dimensional photonic crystal layer, the holes are created to be columnar with a predetermined cross-sectional shape such as a circular shape, and the main axis of each of the columnar holes is tilted to a surface of the matrix body. When provided with this two-dimensional photonic crystal layer, the surface-emitting laser source using a two-dimensional photonic crystal has a Q⊥ value (i.e. a Q value in a direction perpendicular to the surface) of several thousands, which is suitable for an oscillation of laser light, and the efficiency of extracting light is high in the direction perpendicular to the surface.