Graphene-based dual-mode modulators

Optics Express
Gongcheng YueTiegen Liu

Abstract

Mode-division multiplexing (MDM) has attracted broad attention as it could effectively boost up transmission capability by utilizing optical modes as a spatial dimension in optical interconnects. In such a technique, different data channels are usually modulated to the respective carriers over different spatial modes by using individual parallel electro-optic modulators. Each modulated channel is then multiplexed to a multi-mode waveguide. However, the method inevitably suffers from a high cost, large device footprint and high insertion loss. Here, we design intensity and phase dual-mode modulators, enabling simultaneous modulations over two channels via a graphene-on-silicon waveguide. Our method is based on the exploration of co-planar interactions between structured graphene nanoribbons (GNs) and spatial modes in a silicon waveguide. Specifically, the zeroth-order transverse electric (TE0) and first-order transverse electric (TE1) modes are modulated separately and simultaneously by applying independent driving electrodes to different GNs in an identical modulator. Our study is expected to open an avenue to develop high-density MDM photonics integrated circuits for tera-scale optical interconnects.

References

Nov 7, 2009·Nature Nanotechnology·Fengnian XiaPhaedon Avouris
May 10, 2011·Nature·Ming LiuXiang Zhang
Oct 15, 2011·Optics Express·G Senthil MuruganM N Zervas
Feb 16, 2012·Nano Letters·Ming LiuXiang Zhang
Apr 20, 2012·ACS Nano·Qiaoliang Bao, Kian Ping Loh
Aug 31, 2013·Optics Letters·Jiejiang XingYude Yu
Jan 16, 2014·Nature Communications·Lian-Wee LuoMichal Lipson
Feb 12, 2014·Optics Express·Joel CarpenterJochen Schröder
Mar 26, 2014·Optics Express·Bryce A Dorin, Winnie N Ye
May 15, 2015·Optics Express·Shaoliang YuLimin Tong
Jun 1, 2016·Optics Letters·Abhijeet PhatakKeisuke Goda
Feb 25, 2018·Optics Express·Giuseppe BrunettiMario N Armenise
Apr 28, 2018·Chemical Society Reviews·Hua ZhangZhongfan Liu
Aug 18, 2018·Optics Express·Rubab AminVolker J Sorger
Jul 25, 2019·Nature Communications·Yingjie LiuQinghai Song

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