宽带 8μm 长硅-等离子混合横向磁-横向电转换器，损耗低于 2dB。

Broadband 8 μm long hybrid silicon-plasmonic transverse magnetic-transverse electric converter with losses below 2 dB.

机构信息

Nanophotonics Technology Center, Universitat Politècnica de València, Valencia, Spain.

出版信息

Opt Lett. 2013 Aug 1;38(15):2842-5. doi: 10.1364/OL.38.002842.

DOI:10.1364/OL.38.002842

Abstract

A novel ultracompact (8 μm length) hybrid silicon-plasmonic TM-TE converter is reported. The conversion is achieved during a partial power coupling between a waveguide and a hybrid plasmonic parallel waveguide. The impact of different types of metals is also analyzed. At a wavelength of 1.55 μm, the device has an extinction ratio (ER) of 27.6 dB and insertion loss (IL) of 1.75 dB. Furthermore, an optical bandwidth as large as 100 nm is achieved with ERs higher than 25 dB and ILs below 2 dB.

摘要

报道了一种新颖的超紧凑（8μm 长度）混合硅-等离子体 TM-TE 转换器。转换是在波导和混合等离子体平行波导之间的部分功率耦合期间实现的。还分析了不同类型金属的影响。在 1.55μm 的波长下，该器件的消光比（ER）为 27.6dB，插入损耗（IL）为 1.75dB。此外，还实现了 100nm 宽的光学带宽，其 ER 高于 25dB，IL 低于 2dB。