High efficiency vertical optical coupler using sub-wavelength high contrast grating

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	High efficiency vertical optical coupler using sub-wavelength high contrast grating
其他题名	High efficiency vertical optical coupler using sub-wavelength high contrast grating
	CHANG-HASNAIN, CONNIE; ZHU, LI; KARAGODSKY, VADIM; YANG, WEIJIAN
	2013-01-17
专利权人	THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
公开日期	2013-01-17
授权国家	世界知识产权组织
专利类型	发明申请
摘要	A vertical optical coupler which redirects light transmission in response to the interaction between a sub-wavelength high contrast grating (HCG) having a plurality of spaced apart segments of grating material which is optically coupled to a waveguide. For a selected set of material, grating geometry, gaps and spacing, the light directed at a normal incidence into the optical coupler is angularly displaced in traveling in the optical waveguide, while light directed along the optical waveguide is angularly displaced in being output at normal incidence from the optical coupler. The coupler is integrated into a number of device embodiments, including: a coupler between angularly displaced waveguides, lasers, light emitting diodes (LEDs) and solar cells.
其他摘要	一种垂直光学耦合器，其响应于亚波长高对比度光栅（HCG）之间的相互作用而重定向光传输，所述亚波长高对比度光栅具有光学耦合到波导的多个间隔开的光栅材料段。对于选定的一组材料，光栅几何形状，间隙和间隔，以垂直入射进入光耦合器的光在光波导中行进时成角度地移位，而沿光波导引导的光在正常输出时被角度地移位。来自光耦合器的入射。耦合器集成到许多装置实施例中，包括：角位移波导，激光器，发光二极管（LED）和太阳能电池之间的耦合器。
主权项	1 . An apparatus for optical coupling, comprising: a sub-wavelength high contrast grating (HCG) having a plurality of separate spaced apart segments of material with a gap between adjacent segments; and an optical waveguide proximally coupled through a selected gap to said sub- wavelength high contrast grating (HCG); wherein light is coupled between normal incidence on said sub-wavelength high contrast grating (HCG) and transmission through said optical waveguide.
申请日期	2012-04-27
专利号	WO2012149441A3
专利状态	未确认
申请号	PCT/US2012/035615
公开（公告）号	WO2012149441A3
IPC 分类号	G02B6/293
专利代理人	O'BANION, JOHN
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/54320
专题	半导体激光器专利数据库
作者单位	THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
推荐引用方式 GB/T 7714	CHANG-HASNAIN, CONNIE,ZHU, LI,KARAGODSKY, VADIM,et al. High efficiency vertical optical coupler using sub-wavelength high contrast grating. WO2012149441A3[P]. 2013-01-17.

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