High-extinction-ratio silicon polarization beam splitter with tolerance to waveguide width and coupling length variations

被引：126

作者：

Zhang, Yong ^{[1
]}

He, Yu ^{[1
]}

Wu, Jiayang ^{[1
]}

Jiang, Xinhong ^{[1
]}

Liu, Ruili ^{[1
]}

Qiu, Ciyuan ^{[1
]}

Jiang, Xiaoqing ^{[2
]}

Yang, Jianyi ^{[2
]}

Tremblay, Christine ^{[3
]}

Su, Yikai ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

[2] Zhejiang Univ, Dept Informat Sci & Elect Engn, Hangzhou 310027, Peoples R China

[3] Ecole Technol Super, Lab Technol Reseaux, Montreal, PQ, Canada

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 06期

基金：

上海市自然科学基金; 中国国家自然科学基金;

关键词：

ROTATOR; EFFICIENT;

D O I：

10.1364/OE.24.006586

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a compact silicon polarization beam splitter (PBS) based on grating-assisted contradirectional couplers (GACCs). Over 30-dB extinction ratios and less than 1-dB insertion losses are achieved for both polarizations. The proposed PBS exhibits tolerance in width variation, and the polarization extinction ratios remain higher than 20 dB for both polarizations when the width variation is adjusted from + 10 to -10 nm. Benefiting from the enhanced coupling by the GACCs, the polarization extinction ratio can be kept higher than 15 dB and the insertion loss is lower than 2 dB for both polarizations when the coupling length varies from 30.96 to 13.76 mu m. (C) 2016 Optical Society of America

引用

页码：6586 / 6593

页数：8

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