Design of a high-efficiency grating coupler with flat-top-like output

被引：0

作者：

Wang, C. ^{[1
]}

Zhang, S. ^{[1
]}

机构：

[1] China Elect Power Res Inst Co Ltd, Inst Artificial Intelligence, Beijing, Peoples R China

来源：

JOURNAL OF OPTICAL TECHNOLOGY | 2021年 / 88卷 / 11期

关键词：

STRUCTURED ILLUMINATION MICROSCOPY; POLARIZATION BEAM SPLITTER; WAVE-GUIDES;

D O I：

10.1364/JOT.88.000661

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

What we believe to be a novel high-efficiency grating coupler that can couple out a flat-top-like beam profile is proposed. Theory analyses and simulation results are shown in the design with optimized parameters. The power-up from the optimized grating coupler is over 83.9% (-0.76 dB) at the center wavelength of 1550 nm with the 3 dB bandwidth of about 140 nm. The flat-top area of the output light at a height of 1 mu m above the waveguide surface is about 14 x 14 mu m(2), which is applicable in the illumination field for many optical sensors. (C) 2021 Optica Publishing Group

引用

页码：661 / 665

页数：5

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