Compact slanted grating couplers

被引：68

作者：

Wang, B ^{[1
]}

Jiang, JH ^{[1
]}

Nordin, GP ^{[1
]}

机构：

[1] Univ Alabama, Nano & Micro Devices Ctr, Huntsville, AL 35899 USA

来源：

OPTICS EXPRESS | 2004年 / 12卷 / 15期

关键词：

D O I：

10.1364/OPEX.12.003313

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a compact and efficient design for slanted grating couplers (SLGC's) to vertically connect fibers and planar waveguides without intermediate optics. The proposed SLGC employs a strong index modulated slanted grating. With the help of a genetic algorithm-based rigorous design tool, a 20 mum-long SLGC with 80.1% input coupling efficiency has been optimized. A rigorous mode analysis reveals that the phase-matching condition and Bragg condition are satisfied simultaneously with respect to the fundamental leaky mode supported by the optimized SLGC. (C) 2004 Optical Society of America.

引用

页码：3313 / 3326

页数：14

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