Low-chirp high-extinction-ratio modulator based on graphene-silicon waveguide

被引：54

作者：

Yang, Longzhi ^{[1
]}

Hu, Ting ^{[1
]}

Hao, Ran ^{[1
]}

Qiu, Chen ^{[1
,2
]}

Xu, Chao ^{[1
]}

Yu, Hui ^{[1
]}

Xu, Yang ^{[1
]}

Jiang, Xiaoqing ^{[1
]}

Li, Yubo ^{[1
]}

Yang, Jianyi ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Dept Informat Sci & Elect Engn, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Cyrus Tang Ctr Sensor Mat & Applicat, Hangzhou 310027, Peoples R China

来源：

OPTICS LETTERS | 2013年 / 38卷 / 14期

关键词：

SURFACE-PLASMON RESONANCE; OPTICAL MODULATOR; PHOTODETECTOR; BIOSENSORS; DEVICES;

D O I：

10.1364/OL.38.002512

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a hybrid graphene-silicon waveguide, which consists of a lateral slot waveguide with three layers of graphene flakes inside. Through a theoretical analysis, an effective index variation for about 0.05 is found in the waveguide by applying a voltage on the graphene. We designed a Mach-Zehnder modulator based on this waveguide and demonstrated it can process signals nearly chirp-free. The calculation shows that the driving voltage is only 1 V even if the length of the arm is shortened to be 43.54 mu m. An extinction up to 34.7 dB and a minimum chirp parameter of -0.006 are obtained. Its insertion loss is roughly -1.37 dB. This modulator consumes low power and has a small footprint. It can potentially be ultrafast as well as CMOS compatible. (C) 2013 Optical Society of America

引用

页码：2512 / 2515

页数：4

共 27 条

[1]

Acoleyen K.V., 2012, IEEE PHOTONICS J, V4, P779

[2] Graphene Photonics, Plasmonics, and Broadband Optoelectronic Devices [J].

Bao, Qiaoliang ;

Loh, Kian Ping .

ACS NANO, 2012, 6 (05) :3677-3694

[3]

Bao QL, 2011, NAT PHOTONICS, V5, P411, DOI [10.1038/nphoton.2011.102, 10.1038/NPHOTON.2011.102]

[4] Graphene-on-silver substrates for sensitive surface plasmon resonance imaging biosensors [J].

Choi, Seung Ho ;

Kim, Young L. ;

Byun, Kyung Min .

OPTICS EXPRESS, 2011, 19 (02) :458-466

[5] Microcavity-Integrated Graphene Photodetector [J].

Furchi, Marco ;

Urich, Alexander ;

Pospischil, Andreas ;

Lilley, Govinda ;

Unterrainer, Karl ;

Detz, Hermann ;

Klang, Pavel ;

Andrews, Aaron Maxwell ;

Schrenk, Werner ;

Strasser, Gottfried ;

Mueller, Thomas .

NANO LETTERS, 2012, 12 (06) :2773-2777

[6]

Grigorenko AN, 2012, NAT PHOTONICS, V6, P749, DOI [10.1038/NPHOTON.2012.262, 10.1038/nphoton.2012.262]

[7] Dyadic Green's functions and guided surface waves for a surface conductivity model of graphene [J].

Hanson, George W. .

JOURNAL OF APPLIED PHYSICS, 2008, 103 (06)

[8] ELECTRON-PHONON COUPLING AND THE ELECTRICAL-CONDUCTIVITY OF FULLERENE NANOTUBULES [J].

JISHI, RA ;

DRESSELHAUS, MS ;

DRESSELHAUS, G .

PHYSICAL REVIEW B, 1993, 48 (15) :11385-11389

[9] Graphene-based plasmonic waveguides for photonic integrated circuits [J].

Kim, Jin Tae ;

Choi, Sung-Yool .

OPTICS EXPRESS, 2011, 19 (24) :24557-24562

[10] All-optical high-speed signal processing with silicon-organic hybrid slot waveguidesx [J].

Koos, C. ;

Vorreau, P. ;

Vallaitis, T. ;

Dumon, P. ;

Bogaerts, W. ;

Baets, R. ;

Esembeson, B. ;

Biaggio, I. ;

Michinobu, T. ;

Diederich, F. ;

Freude, W. ;

Leuthold, J. .

NATURE PHOTONICS, 2009, 3 (04) :216-219

← 1 2 3 →