Wideband subwavelength gratings for coupling between silicon-on-insulator waveguides and optical fibers

被引：89
|
作者：
Chen, Xia [1 ]
Xu, Ke [1 ]
Cheng, Zhenzhou [1 ]
Fung, Christy K. Y. [1 ]
Tsang, Hon K. [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
OPTICS LETTERS | 2012年 / 37卷 / 17期
关键词：
BROAD-BAND; COUPLERS; EFFICIENT;
D O I：
10.1364/OL.37.003483
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and experimentally demonstrate a novel subwavelength grating coupler on silicon-on-insulator, for coupling to optical fibers with a wide optical bandwidth. Theoretical analysis and design optimization of the coupler are described. About 73 nm 1 dB bandwidth was experimentally demonstrated with -5.6 dB coupling efficiency. Better than -3.4 dB efficiency with 86 nm 1 dB bandwidth is predicted for these structures with optimized buried oxide thickness. (c) 2012 Optical Society of America
引用
收藏
页码：3483 / 3485
页数：3
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