Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide

Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide

A polarization-insensitive graphene-based mid-infrared optical modulator is presented that comprised SiO 2 / Ge 23 Sb 7 S 70 , in which two graphene layers are embedded with a semiellipse layout to support transverse magnetic (TM) and transverse electric (TE) polarizing modes with identical absorpti...

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Veröffentlicht in:Nanoscale research letters 2021-05, Vol.16 (1), p.80-7, Article 80
Hauptverfasser: Zhou, Yong, Lu, Rongguo, Wang, Guangbiao, Lyu, Jiangbo, Tan, Meng, Shen, Liming, Lin, Rui, Yang, Zhonghua, Liu, Yong
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
Chalcogenide glass
Chemistry and Materials Science
Electroabsorption modulators
Graphene
Insertion loss
Materials Science
Mid-infrared
Molecular Medicine
Nano Express
Nanochemistry
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
Optical-modulator
Performance indices
Polarization
Polarization-insensitive
Silicon dioxide
Waveguides
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Zusammenfassung:A polarization-insensitive graphene-based mid-infrared optical modulator is presented that comprised SiO 2 / Ge 23 Sb 7 S 70 , in which two graphene layers are embedded with a semiellipse layout to support transverse magnetic (TM) and transverse electric (TE) polarizing modes with identical absorption. The key performance index for the polarization independent modulator is polarization-sensitivity loss (PSL). The waveguide of our device just supports basic TE and TM modes, and the PSL between two modes is of
ISSN:1931-7573
1556-276X
1556-276X
DOI:10.1186/s11671-021-03538-7