Hybrid Coupling Between Long-Range Surface Plasmon Polariton Mode and Dielectric Waveguide Mode

被引：20

作者：

Liu, Fang ^{[1
]}

Li, Yunxiang ^{[1
]}

Wan, Ruiyuan ^{[1
]}

Huang, Yidong ^{[1
]}

Feng, Xue ^{[1
]}

Zhang, Wei ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Integrated Optoelect, Beijing 100084, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2011年 / 29卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Hybrid coupler; polarization splitter; surface plasmon polariton (SPP); FINITE-WIDTH; OPTICS; WAVELENGTHS;

D O I：

10.1109/JLT.2011.2115992

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the hybrid coupling between long-range surface plasmon polariton (LRSPP) waveguide mode and dielectric waveguide mode has been studied theoretically and experimentally in detail by considering its dependence on the structure parameters and wavelength. It is demonstrated that extremely high coupling efficiency (>99%) has been achieved for TM polarization, while no coupling could happen for TE polarization between these two kinds of waveguides. Based on this hybrid coupler, a polarization splitter with pure TM-mode output from one arm and TE-mode output from the other arm with high TE/TM extinction ratio has been realized. Additionally, this kind of coupling between different waveguides is very significant for providing an effective approach to connect the LRSPP-based devices with the conventional dielectric devices.

引用

页码：1265 / 1273

页数：9

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