Compact, broadband, and low-loss silicon photonic arbitrary ratio power splitter using adiabatic taper

被引：25

作者：

Zhu, Junbo ^{[1
,2
]}

Chao, Qiu ^{[1
]}

Huang, Haiyang ^{[1
]}

Zhao, Yingxuan ^{[1
]}

Li, Yang ^{[1
,2
]}

Tao, Lue ^{[1
,2
]}

She, Xiaojuan ^{[1
,2
]}

Liao, Han ^{[1
,2
]}

Huang, Rui ^{[1
,2
]}

Zhu, Zijian ^{[1
,2
]}

Liu, Xiang ^{[1
,2
]}

Sheng, Zhen ^{[1
]}

Gan, Fuwan ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China

来源：

APPLIED OPTICS | 2021年 / 60卷 / 02期

基金：

中国国家自然科学基金;

关键词：

COUPLER;

D O I：

10.1364/AO.413949

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The arbitrary ratio power splitter is widely used in photonic integrated circuits (PICs), for signal monitoring, power equalization, signal feedback, and so on. Here we designed a fabrication-tolerant, compact, broadband, and low-loss arbitrary ratio power splitter. The proposed arbitrary ratio power splitter was realized with an adiabatically tapered silicon rib waveguide with 70 nm shallow etches and an Si3N4 waveguide. The fabrication analysis confirmed that both of them are robust to fabrication errors. 3D finite-difference time-domain simulations show a very low excess loss (less than 0.02 dB for Si3N4 waveguide and 0.05 dB for Si rib waveguide), and a broadband operating wavelength range (100 nm). Good fabrication tolerance and standard critical dimensions make the arbitrary ratio power splitter compatible with the standard fabrication process of commercial silicon photonic foundries. (C) 2021 Optical Society of America

引用

页码：413 / 416

页数：4

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