All-optical controlling based on nonlinear graphene plasmonic waveguides

被引：35

作者：

Li, Jian ^{[1
,2
,3
]}

Tao, Jin ^{[4
]}

Chen, Zan Hui ^{[1
,2
,3
]}

Huang, Xu Guang ^{[1
,2
,3
]}

机构：

[1] South China Normal Univ, Guangzhou Key Lab Special Fiber Photon Devices &, Guangzhou 510006, Guangdong, Peoples R China

[2] South China Normal Univ, Specially Funct Fiber Engn Technol Res Ctr, Guangdong Higher Educ Inst, Guangzhou 510006, Guangdong, Peoples R China

[3] South China Normal Univ, Guangdong Prov Engn Technol Res Ctr Microstruct F, Guangzhou 510006, Guangdong, Peoples R China

[4] Wuhan Res Inst Posts Telecommun, State Key Lab Opt Commun Technol & Networks, Wuhan 430074, Peoples R China

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 19期

关键词：

33;

D O I：

10.1364/OE.24.022169

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We give the effective refractive index of graphene plasmonic waveguides with both linear and nonlinear effects based on the nonlinear cross-phase modulation, and address the effects of photo-induced refractive index change and absorption change. A non-resonant all-optical nonlinear graphene plasmonic switch with an ultra-compact size of 0.25 mu m(2) is proposed and numerically analyzed based on the dynamics of the photo-induced absorption change. The results show that the all-optical graphene plasmonic switch can realize a broad bandwidth over 5 THz, a potentially very high switching speed and an extinction ratio of 18.14 dB with the electric amplitude of the pump light of 1.5 x 10(7) V/m at the signal frequency of 28 THz. Our study could provide a possibility for future all-optical highly integrated optical components. (C) 2016 Optical Society of America

引用

页码：22169 / 22176

页数：8

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