Optical switching in hybrid VO2/Si waveguides thermally triggered by lateral microheaters

被引：44

作者：

Olivares, Irene ^{[1
]}

Sansschez, Luis ^{[1
]}

Parra, Jorge ^{[1
]}

Larrea, Roberto ^{[1
]}

Griol, Amadeu ^{[1
]}

Menghini, Mariela ^{[2
]}

Homm, Pia ^{[2
]}

Jang, Lee-Woon ^{[3
]}

van Bilzen, Bart ^{[2
]}

Seo, Jin Won ^{[3
]}

Locquet, Jean-Pierre ^{[2
]}

Sanchis, Pablo ^{[1
]}

机构：

[1] Univ Politecn Valencia, Nanophoton Technol Ctr, Camino Vera S-N, E-46022 Valencia, Spain

[2] Katholieke Univ Leuven, Dept Phys & Astron, Celestijnenlaan 200D, Leuven, Belgium

[3] Katholieke Univ Leuven, Dept Mat Engn, Kasteelpk Arenberg 44, Leuven, Belgium

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 10期

关键词：

METAL-INSULATOR-TRANSITION; THIN-FILMS; PHASE-CHANGE; VANADIUM DIOXIDE; OXIDE;

D O I：

10.1364/OE.26.012387

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The performance of optical devices relying in vanadium dioxide (VO2) technology compatible with the silicon platform depends on the polarization of light and VO2 properties. In this work, optical switching in hybrid VO2/Si waveguides thermally triggered by lateral microheaters is achieved with insertion losses below 1 dB and extinction ratios above 20 dB in a broad bandwidth larger than 30 nm. The optical switching response has been optimized for TE and TM polarizations by using a homogeneous and a granular VO2 layer, respectively, with a small impact on the electrical power consumption. The stability and reversibility between switching states showing the possibility of bistable performance is also demonstrated. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

引用

页码：12387 / 12395

页数：9

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