Tunability Analysis of a Graphene-Embedded Ring Modulator

Author

Wei Du ; Er-Ping Li ; Ran Hao

Author_Institution

Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China

Volume

26

Issue

20

fYear

2014

fDate

Oct.15, 15 2014

Firstpage

2008

Lastpage

2011

Abstract

This letter presents a novel graphene-embedded optical ring modulator that significantly enhances the modulation efficiency and tunability. Due to the enhanced light-matter interaction of graphene-embedded design, the shift rate of the resonance peak has been improved to 1.08 nm per applied voltage, which is two orders of the magnitude higher than previous ring modulators. The narrow bandwidth of the resonant modulator has been ameliorated to 149 GHz. In addition, our proposed modulator exhibits the advantages of high extinction ratio (22.13 dB) and smaller power consumption. Furthermore, a good tolerance of temperature drift (27 K) has been demonstrated in the proposed modulator.

Keywords

graphene; optical design techniques; optical modulation; optical tuning; C; extinction ratio; graphene-embedded design; graphene-embedded optical ring modulator; light-matter interaction; modulation efficiency; power consumption; resonant modulator bandwidth; shift rate; temperature drift; tunability analysis; Bandwidth; Chemicals; Graphene; Modulation; Optical ring resonators; Optical waveguides; Silicon; Bandwidth; extinction ratio; graphene embedded optical ring modulator; temperature drift;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2344041

Filename

6874509