Tunable gallium nitride-based devices for ultrafast signal processing

被引：0

作者：

Xie, Peng ^{[1
,2
,3
,6
]}

Wen, Yu ^{[4
]}

Yang, Wenqiang ^{[1
,6
]}

Wan, Zishen ^{[2
,3
]}

Liu, Jiarui ^{[5
]}

Wang, Xinyu ^{[1
,6
]}

Da, Siqi ^{[6
]}

Wang, Yishan ^{[6
]}

机构：

[1] Chinese Acad Sci, XIOPM, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China

[2] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[3] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[4] Natl Univ Def Technol, Changsha 410073, Hunan, Peoples R China

[5] Sun Yat Sen Univ, Guangzhou 510000, Guangdong, Peoples R China

[6] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

MODERN PHYSICS LETTERS B | 2019年 / 33卷 / 17期

关键词：

Gallium nitride; graphene; waveguides; ultrafast signal processing; THERMAL-CONDUCTIVITY; GRAPHENE; SINGLE;

D O I：

10.1142/S0217984919501872

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, we propose a micro-ring resonator model based on gallium nitride (GaN) and graphene, which exhibits tunable properties of nonlinearity. It provides a great bandwidth covering from visible to telecommunication band. Especially, based on the characteristic of GaN, it has unique advantages in shorter wavelength, which is used for demonstrating the ultrafast signal processing including wavelength conversion, temporal amplification and pulse compression. Moreover, the tunable signal processing is achieved via the method of applying additional bias voltage to graphene without changing the geometric dimension of the device. These results have significant potential applications of nonlinear optics and optical communications.

引用

页数：9

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