Unprecedented highest electro-optic coefficient of 226 pm/V for electro-optic polymer/TiO2 multilayer slot waveguide modulators

被引：48
|
作者：
Jouane, Y. [1 ]
Chang, Y-C. [1 ]
Zhang, D. [1 ]
Luo, J. [2 ]
Jen, A. K-Y. [2 ]
Enami, Y. [1 ]
机构：
[1] Kochi Univ Technol, Sch Syst Engn, Dept Optoelect Engn, Kami Kochi 7828502, Japan
[2] Univ Washington, Dept Mat Sci & Engn, Seattle, WA USA
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 22期
关键词：
NONLINEAR-OPTICAL POLYMERS; POLED POLYMERS; CHROMOPHORES; CONDUCTION; DEVICES; FILMS;
D O I：
10.1364/OE.22.027725
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigated the electrical properties and optical quality of two layers a titanium dioxide (TiO2) selective layer and a sol-gel silica cladding layer for use as coating layers for nonlinear optic (NLO) polymers in electro-optic (EO) polymer/TiO2 multilayer slot waveguide modulators. We used a simple ellipsometric reflective technique developed by Teng and Man to measure the electro-optic (EO) coefficients of poled thin films of an EO polymer in an EO multilayer device. The Pockels coefficient was enhanced up to 226 and 198 pm/V at wavelengths of 1.31 and 1.55 mu m, respectively, when optimally poled with TiO2 and a sol-gel silica cladding. (C) 2014 Optical Society of America
引用
收藏
页码：27725 / 27732
页数：8
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