Wideband silicon photonic polarization beamsplitter based on point-symmetric cascaded broadband couplers

被引：62

作者：

Lu, Zeqin ^{[1
]}

Wang, Yun ^{[1
]}

Zhang, Fan ^{[1
]}

Jaeger, Nicolas A. F. ^{[1
]}

Chrostowski, Lukas ^{[1
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 23期

基金：

加拿大自然科学与工程研究理事会;

关键词：

MACH-ZEHNDER INTERFEROMETERS; BEAM SPLITTER; DESIGN;

D O I：

10.1364/OE.23.029413

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We design and demonstrate a wideband silicon photonic polarization beamsplitter on a silicon-on-insulator platform. The device consists of two 3 dB broadband couplers cascaded in a point-symmetric network. The transverse electric (TE) and transverse magnetic (TM) modes are coupled to different output ports due to a large difference between their coupling strengths. The device exhibits large isolation at both the two output ports, of more than 20 dB over a large bandwidth of 125 nm, and a small excess loss, of less than 0.5 dB for the entire C-band. (C) 2015 Optical Society of America

引用

页码：29413 / 29422

页数：10

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