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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Autores principales: Zhou, Yong, Lu, Rongguo, Wang, Guangbiao, Lyu, Jiangbo, Tan, Meng, Shen, Liming, Lin, Rui, Yang, Zhonghua, Liu, Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2021
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8106561/
https://www.ncbi.nlm.nih.gov/pubmed/33963953
http://dx.doi.org/10.1186/s11671-021-03538-7
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author Zhou, Yong
Lu, Rongguo
Wang, Guangbiao
Lyu, Jiangbo
Tan, Meng
Shen, Liming
Lin, Rui
Yang, Zhonghua
Liu, Yong
author_facet Zhou, Yong
Lu, Rongguo
Wang, Guangbiao
Lyu, Jiangbo
Tan, Meng
Shen, Liming
Lin, Rui
Yang, Zhonghua
Liu, Yong
author_sort Zhou, Yong
collection PubMed
description 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 < 0.24 dB. The model can offer extinction ratio (ER) more than 16 dB and insertion loss less than 1 dB. The operation spectrum ranges from 2 to 2.4 μm with optical bandwidth of 400 nm. The 3 dB modulation bandwidth is as high as 136 GHz based on theoretical calculation.
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spelling pubmed-81065612021-05-10 Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide Zhou, Yong Lu, Rongguo Wang, Guangbiao Lyu, Jiangbo Tan, Meng Shen, Liming Lin, Rui Yang, Zhonghua Liu, Yong Nanoscale Res Lett Nano Express 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 < 0.24 dB. The model can offer extinction ratio (ER) more than 16 dB and insertion loss less than 1 dB. The operation spectrum ranges from 2 to 2.4 μm with optical bandwidth of 400 nm. The 3 dB modulation bandwidth is as high as 136 GHz based on theoretical calculation. Springer US 2021-05-08 /pmc/articles/PMC8106561/ /pubmed/33963953 http://dx.doi.org/10.1186/s11671-021-03538-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Nano Express
Zhou, Yong
Lu, Rongguo
Wang, Guangbiao
Lyu, Jiangbo
Tan, Meng
Shen, Liming
Lin, Rui
Yang, Zhonghua
Liu, Yong
Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide
title Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide
title_full Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide
title_fullStr Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide
title_full_unstemmed Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide
title_short Graphene-Based Polarization-Independent Mid-Infrared Electro-Absorption Modulator Integrated in a Chalcogenide Glass Waveguide
title_sort graphene-based polarization-independent mid-infrared electro-absorption modulator integrated in a chalcogenide glass waveguide
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8106561/
https://www.ncbi.nlm.nih.gov/pubmed/33963953
http://dx.doi.org/10.1186/s11671-021-03538-7
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