High-efficiency Broadband Grating Coupler for Light Guides

被引：0

作者：

Bai, Benfeng ^{[1
]}

Laukkanen, Janne ^{[1
]}

Kuittinen, Markku ^{[1
]}

Siitonen, Samuli

机构：

[1] Univ Joensuu, Dept Math & Phys, FI-80101 Joensuu, Finland

来源：

EURODISPLAY 2009 | 2009年

关键词：

DISPLAYS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The slanted overhanging sinusoidal and trapezoidal gratings are proposed to be used as broadband couplers for light guides. The optimized couplers exhibit a high coupling efficiency of over 50% for unpolarized illumination over the full band of white LED. The fabrication of the overhanging gratings is also investigated.

引用

页码：604 / 607

页数：4