Nanotaper for compact mode conversion

被引：693

作者：

Almeida, VR ^{[1
]}

Panepucci, RR ^{[1
]}

Lipson, M ^{[1
]}

机构：

[1] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14853 USA

来源：

OPTICS LETTERS | 2003年 / 28卷 / 15期

关键词：

D O I：

10.1364/OL.28.001302

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate an efficient coupler for compact mode conversion between a fiber and a submicrometer waveguide. The coupler is composed of high-index-contrast materials and is based on a short taper with a nanometer-sized tip. We show that the micrometer-long silicon-on-insulator-based nanotaper coupler is able to efficiently convert both the mode field profile and the effective index, with a total length as short as 40 mum. We measure an enhancement of the coupling efficiency between an optical fiber and a waveguide by 1 order of magnitude due to the coupler. (C) 2003 Optical Society of America.

引用

页码：1302 / 1304

页数：3

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