Design of a graphene-based multi-mode BPSK modulator

Gongcheng Yue; Weicheng Chen; Haofeng Hu; Guo-Wei Lu; Zhenzhou Cheng; Tiegen Liu

doi:10.1117/12.2570737

10 October 2020 Design of a graphene-based multi-mode BPSK modulator

Gongcheng Yue, Weicheng Chen, Haofeng Hu, Guo-Wei Lu, Zhenzhou Cheng, Tiegen Liu

Proceedings Volume 11547, Optoelectronic Devices and Integration IX; 115470R (2020) https://doi.org/10.1117/12.2570737
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

Here, we theoretically study a novel multi-mode modulator based on a double-layer graphene-on-silicon waveguide. Our method is based on the exploration of tunable interaction between patterned graphene nanoribbons (GNs) on the surface of a silicon waveguide and zeroth transverse electric (TE0) and first transverse electric (TE1) modes in the waveguide. By adjusting the Fermi level of graphene sheets in the double-layer graphene-on-silicon waveguide, we could simultaneously and separately obtain about pi phase shifts of the TE0 and TE1 modes in the same waveguide. Our study is expected to open an avenue to develop high-density MDM photonics integrated circuits for tera-scale optical interconnects.

Conference Presentation

Citation Download Citation

Gongcheng Yue, Weicheng Chen, Haofeng Hu, Guo-Wei Lu, Zhenzhou Cheng, and Tiegen Liu "Design of a graphene-based multi-mode BPSK modulator", Proc. SPIE 11547, Optoelectronic Devices and Integration IX, 115470R (10 October 2020); https://doi.org/10.1117/12.2570737

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