Polarization-Insensitive Graphene Modulator Based on Hybrid Plasmonic Waveguide

Autor: Songyue Liu, Manzhuo Wang, Tingyu Liu, Yan Xu, Jianbo Yue, Yunji Yi, Xiaoqiang Sun, Daming Zhang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Photonics, Vol 9, Iss 9, p 609 (2022)
Druh dokumentu: article
ISSN: 2304-6732
DOI: 10.3390/photonics9090609
Popis: A polarization-insensitive graphene-assisted electro-optic modulator is proposed. The orthogonal T-shaped metal slot hybrid plasmonic waveguide allows the polarization-independent propagation of transverse electric field mode and complex mode. By the introduction of dual-layer graphene on the ridge waveguide, the polarization-insensitive modulation depths of the TE mode and complex mode are 0.511 dB/µm and 0.502 dB/µm, respectively. The 3 dB bandwidth of the modulator we have proposed is about 127 GHz at the waveguide length of 20 μm. The power consumption of 72 fJ/bit promised potential graphene electro-optic modulator applications for on-chip interconnected information transfer and processing.
Databáze: Directory of Open Access Journals