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Ultra-compact and fabrication-tolerant mode multiplexer and demultiplexer based on angled silicon waveguides

被引：19
|
作者：
Jiang, Weifeng [1 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Jiangsu, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2018年 / 425卷
基金：
中国国家自然科学基金;
关键词：
Silicon photonics; Mode division multiplexing; Mode multiplexer; ASYMMETRIC Y JUNCTIONS; ON-CHIP; DIRECTIONAL COUPLER; ADIABATIC COUPLERS; 2-MODE; PHOTONICS; CROSSTALK; SIDEWALLS; NETWORK;
D O I：
10.1016/j.optcom.2018.05.009
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An ultra-compact and fabrication-tolerant mode multiplexer (MUX) and demultiplexer (DeMUX) is proposed based on the angled silicon waveguides. The proposed mode (De)MUX is optimized by using the full-vectorial finite element method (FV-FEM) and three-dimensional full-vectorial finite difference time domain method (3D-FV-FDTD). The simulated results show that the optimal mode (De)MUX is with an ultra-compact length of 7.0 mu m, a high mode conversion efficiency of 98.5%, an ultra-low excess loss of 0.05 dB and a low mode crosstalk of -18.2 dB at the operating wavelength of 1550 nm. The fabrication tolerances are also studied for the proposed mode (De)MUX.
引用
收藏
页码：141 / 145
页数：5
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