Compact and high extinction ratio TM-pass polarizer utilizing hollow hybrid plasmonic waveguide

被引：16

作者：

Bai, Bing ^{[1
]}

Pei, Li ^{[1
]}

Zheng, Jingjing ^{[1
]}

Ning, Tigang ^{[1
]}

Li, Jing ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Inst Lightwave Technol, Beijing 100044, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2019年 / 445卷

基金：

中国国家自然科学基金;

关键词：

Surface plasmons; Polarization-selective devices; Integrated optics; BROAD-BAND;

D O I：

10.1016/j.optcom.2019.03.076

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A compact, high extinction ratio TM-pass polarizer based on hollow hybrid plasmonic waveguide (HPW) is proposed and investigated. With the optimized tapered structure and plasmonics induced optical confinement, the incident transverse magnetic (TM) mode goes through the hollow HPW with relatively low loss, while the transverse electric (TE) mode is cut-off. For a compact 4 mu m long on-chip TM-pass polarizer, the extinction ratio is as high as 57.7 dB at the central wavelength 1550 nm. Benefiting from the hollow plasmonic structure, the corresponding propagation loss is only 0.145 dB/mu m and the device exhibits large fabrication tolerance. In addition, the extinction ratio >34 dB and insertion loss <1 dB is achieved within the whole C-band.

引用

页码：182 / 186

页数：5

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