Xi'an Institute of Optics and Precision Mechanics,CAS
Two-dimensional photonic crystal surface emitting laser | |
其他题名 | Two-dimensional photonic crystal surface emitting laser |
NAGATOMO, YASUHIRO; KAWASHIMA, SHOICHI | |
2014-10-07 | |
专利权人 | CANON KABUSHIKI KAISHA |
公开日期 | 2014-10-07 |
授权国家 | 美国 |
专利类型 | 授权发明 |
摘要 | Provided is a two-dimensional photonic crystal surface emitting laser that enables easy laser oscillation with two-dimensionally symmetric intensity distribution, using a photonic crystal of a lattice structure having different lengths of primitive translation vectors in plane, realized in a two-dimensional photonic crystal surface emitting laser including an active layer, and a two-dimensional photonic crystal having a two-dimensionally periodic refractive index profile disposed in a vicinity of the active layer. The two-dimensional photonic crystal has a lattice structure where two primitive translation vectors in plane have different lengths, a shape of a member forming lattice points included in a unit cell of the lattice structure has anisotropy with respect to directions of the two primitive translation vectors, and the anisotropy of the shape of the member permits a difference of a coupling coefficient to be smaller than a case where the shape of the member is isotropic. |
其他摘要 | 本发明提供一种二维光子晶体表面发射激光器,其使用具有在平面中具有不同长度的基本平移向量的晶格结构的光子晶体,能够在二维光子晶体中实现具有二维对称强度分布的容易激光振荡。表面发射激光器包括有源层和二维光子晶体,二维光子晶体具有设置在有源层附近的二维周期性折射率分布。二维光子晶体具有晶格结构,其中平面中的两个基元平移矢量具有不同的长度,形成格子结构的单位晶胞中的晶格点的构件的形状相对于两个基元平移矢量的方向具有各向异性。并且,构件形状的各向异性允许耦合系数的差异小于构件的形状是各向同性的情况。 |
授权日期 | 2014-10-07 |
申请日期 | 2011-09-14 |
专利号 | US8855158 |
专利状态 | 授权 |
申请号 | US13/820436 |
公开(公告)号 | US8855158 |
IPC 分类号 | H01S5/00 | B82Y20/00 | H01S5/10 | H01S5/18 | H01S5/20 | H01S5/34 | H01S5/343 |
专利代理人 | - |
代理机构 | FITZPATRICK, CELLA, HARPER & SCINTO |
文献类型 | 专利 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/35619 |
专题 | 半导体激光器专利数据库 |
作者单位 | CANON KABUSHIKI KAISHA |
推荐引用方式 GB/T 7714 | NAGATOMO, YASUHIRO,KAWASHIMA, SHOICHI. Two-dimensional photonic crystal surface emitting laser. US8855158[P]. 2014-10-07. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
US8855158.PDF(811KB) | 专利 | 开放获取 | CC BY-NC-SA | 请求全文 |
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