CMOS-compatible all-optical modulator based on the saturable absorption of graphene

被引：0

作者：

HONG WANG ^{[1
]}

NINGNING YANG ^{[1
]}

LIMIN CHANG ^{[2
]}

CHAOBIAO ZHOU ^{[1
]}

SHIYU LI ^{[1
]}

MENG DENG ^{[1
]}

ZHENWEI LI ^{[1
]}

QIANG LIU ^{[1
]}

CHI ZHANG ^{[1
]}

ZHIYONG LI ^{[2
]}

YI WANG ^{[1
]}

机构：

[1] Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology

[2] Institute of Semiconductors, Chinese Academy of Sciences

来源：

Photonics Research | 2020年 / 04期

基金：

中国国家自然科学基金;

关键词：

Graphene; CMOS-compatible all-optical modulator based on the saturable absorption of graphene;

D O I：

暂无

中图分类号：

O613.7 [第Ⅳ族非金属元素（碳和硅）及其化合物]; TN761 [调制技术与调制器];

学科分类号：

070301 ; 080902 ; 081704 ;

摘要：

Graphene resting on a silicon-on-insulator platform offers great potential for optoelectronic devices.In the paper,we demonstrate all-optical modulation on the graphene-silicon hybrid waveguides (GSHWs) with tens of micrometers in length.Owing to strong interaction between graphene and silicon strip waveguides with compact light confinement,the modulation depth reaches 22.7%with a saturation threshold down to 1.38 pJ per pulse and a 30-μm-long graphene pad.A response time of 1.65 ps is verified by a pump-probe measurement with an energy consumption of 2.1 pJ.The complementary metal-oxide semiconductor compatible GSHWs with the strip configuration exhibit great potential for ultrafast and broadband all-optical modulation,indicating that employing two-dimensional materials has become a complementary technology to promote the silicon photonic platform.

引用

页码：468 / 474

页数：7

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