Two-dimensional grating coupler with a low polarization dependent loss of 0.25 dB covering the C-band

被引：48

作者：

Zou, Jinghui

Yu, Yu

Zhang, Xinliang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

来源：

OPTICS LETTERS | 2016年 / 41卷 / 18期

基金：

中国国家自然科学基金;

关键词：

SILICON-ON-INSULATOR; BACKSIDE METAL MIRROR; WAVE-GUIDES; EFFICIENCY; PHOTONICS; CIRCUIT; FIBERS;

D O I：

10.1364/OL.41.004206

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We design and demonstrate a two-dimensional grating coupler (2D GC) with a low polarization dependent loss (PDL) based on the silicon-on-insulator (SOI) platform. Using a grating cell consisting of five cylinders and carefully optimizing the distances between the cylinders, a maximum PDL of 0.25 dB covering the C-band is realized, which is 1.25 dB better than a conventional 2D GC with a single cylinder etching pattern fabricated on the same SOI wafer. (C) 2016 Optical Society of America

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页码：4206 / 4209

页数：4

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