Efficient Modulation of 1.55 μm Radiation with Gated Graphene on a Silicon Microring Resonator

被引：134

作者：

Qiu, Ciyuan ^{[1
,3
]}

Gao, Weilu ^{[1
,3
]}

Vajtai, Robert ^{[2
]}

Ajayan, Pulickel M. ^{[2
]}

Kono, Junichiro ^{[1
,2
,3
]}

Xu, Qianfan ^{[1
]}

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[2] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA

[3] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

来源：

NANO LETTERS | 2014年 / 14卷 / 12期

基金：

美国国家科学基金会;

关键词：

Graphene photonics; NIR modulator; silicon microring resonator; high on/off ratio; ELECTRICAL CONTROL; CAVITY; FILTER; LOGIC;

D O I：

10.1021/nl502363u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The gate-controllability of the Fermi-edge onset of interband absorption in graphene can be utilized to modulate near-infrared radiation in the telecommunication band. However, a high modulation efficiency has not been demonstrated to date, because of the small amount of light absorption in graphene. Here, we demonstrate a ∼40% amplitude modulation of 1.55 μm radiation with gated single-layer graphene that is coupled with a silicon microring resonator. Both the quality factor and resonance wavelength of the silicon microring resonator were strongly modulated through gate tuning of the Fermi level in graphene. These results promise an efficient electro-optic modulator, ideal for applications in large-scale on-chip optical interconnects that are compatible with complementary metal-oxide-semiconductor technology. © 2014 American Chemical Society.

引用

页码：6811 / 6815

页数：5

共 37 条

[31] Ultracompact optical buffers on a silicon chip [J].

Xia, Fengnian ;

Sekaric, Lidija ;

Vlasov, Yurii .

NATURE PHOTONICS, 2007, 1 (01) :65-71

[32] Folded cavity SOI microring sensors for high sensitivity and real time measurement of biomolecular binding [J].

Xu, D. -X. ;

Densmore, A. ;

Delage, A. ;

Waldron, P. ;

McKinnon, R. ;

Janz, S. ;

Lapointe, J. ;

Lopinski, G. ;

Mischki, T. ;

Post, E. ;

Cheben, P. ;

Schmid, J. H. .

OPTICS EXPRESS, 2008, 16 (19) :15137-15148

[33] Micrometre-scale silicon electro-optic modulator [J].

Xu, QF ;

Schmidt, B ;

Pradhan, S ;

Lipson, M .

NATURE, 2005, 435 (7040) :325-327

[34] Silicon microring resonators with 1.5-μm radius [J].

Xu, Qianfan ;

Fattal, David ;

Beausoleil, Raymond G. .

OPTICS EXPRESS, 2008, 16 (06) :4309-4315

[35] Breaking the delay-bandwidth limit in a photonic structure [J].

Xu, Qianfan ;

Dong, Po ;

Lipson, Michal .

NATURE PHYSICS, 2007, 3 (06) :406-410

[36] 12.5 Gbit/s carrier-injection-based silicon micro-ring silicon modulators [J].

Xu, Qianfan ;

Manipatruni, Sasikanth ;

Schmidt, Brad ;

Shakya, Jagat ;

Lipson, Michal .

OPTICS EXPRESS, 2007, 15 (02) :430-436

[37] Electro-optic directed logic circuit based on microring resonators for XOR/XNOR operations [J].

Zhang, Lei ;

Ding, Jianfeng ;

Tian, Yonghui ;

Ji, Ruiqiang ;

Yang, Lin ;

Chen, Hongtao ;

Zhou, Ping ;

Lu, Yangyang ;

Zhu, Weiwei ;

Min, Rui .

OPTICS EXPRESS, 2012, 20 (11) :11605-11614

← 1 2 3 4 →