作者
Yun Wang, Wei Shi, Xu Wang, Zeqin Lu, Michael Caverley, Richard Bojko, Lukas Chrostowski, Nicolas AF Jaeger
发表日期
2015/10/15
期刊
Optics letters
卷号
40
期号
20
页码范围
4647-4650
出版商
Optica Publishing Group
简介
We present a methodology to design broadband grating couplers using one-dimensional subwavelength gratings. Using the presented method, we design subwavelength grating couplers (SWGCs) with 1-dB bandwidths ranging from 50 to 90 nm. Our designed SWGCs have competitive coupling efficiency, as high as −3.8 dB for the fundamental TE mode, and state-of-the-art back reflections, as low as −23 dB.
学术搜索中的文章
Y Wang, W Shi, X Wang, Z Lu, M Caverley, R Bojko… - Optics letters, 2015