Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material

Abstract Mode-division multiplexing (MDM) is a promising approach to dramatically enhance the transmission capacity. A reconfigurable mode (De)multiplexer/switch (RMDS) is a key component for the flexible mode routing in the MDM network. A nonvolatile and ultra-low-loss RMDS is proposed via a triple...

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Autor principal:	Weifeng Jiang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Phase Change Materials (PCMs) Reconfigurable Modules Full-vector Finite Element Method (FV-FEM) Mode Division Multiplexing (MDM) Finite Difference Time Domain Method Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9e3ba93cad5a44b49f8daebd7d294fd8
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spelling	oai:doaj.org-article:9e3ba93cad5a44b49f8daebd7d294fd82021-12-02T15:08:28ZNonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material10.1038/s41598-018-34419-22045-2322https://doaj.org/article/9e3ba93cad5a44b49f8daebd7d294fd82018-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-34419-2https://doaj.org/toc/2045-2322Abstract Mode-division multiplexing (MDM) is a promising approach to dramatically enhance the transmission capacity. A reconfigurable mode (De)multiplexer/switch (RMDS) is a key component for the flexible mode routing in the MDM network. A nonvolatile and ultra-low-loss RMDS is proposed via a triple-silicon-waveguide directional coupler with the Ge2Sb2Se4Te1 (GSST) phase change material (PCM). The nonvolatile property of GSST makes it attractive to reduce the switching power-consumption. Benefiting from the low loss of the GSST-PCM at both amorphous and crystalline states, an RMDS with an ultra-low loss and a high extinction-ratio can be realized. The proposed RMDS is optimally designed by using the full-vectorial finite element method and 3D full-vectorial finite difference time domain method. The numerically simulated results show that a compact RMDS is with the extinction ratios of 18.98 dB and 22.18 dB, ultra-low insertion losses of 0.10 dB and 0.68 dB for the “OFF” and “ON” states, respectively at the operating wavelength of 1550 nm. An ultra-wide bandwidth of 100 nm is achieved for both the “OFF” and “ON” states.Weifeng JiangNature PortfolioarticlePhase Change Materials (PCMs)Reconfigurable ModulesFull-vector Finite Element Method (FV-FEM)Mode Division Multiplexing (MDM)Finite Difference Time Domain MethodMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-12 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Phase Change Materials (PCMs) Reconfigurable Modules Full-vector Finite Element Method (FV-FEM) Mode Division Multiplexing (MDM) Finite Difference Time Domain Method Medicine R Science Q
spellingShingle	Phase Change Materials (PCMs) Reconfigurable Modules Full-vector Finite Element Method (FV-FEM) Mode Division Multiplexing (MDM) Finite Difference Time Domain Method Medicine R Science Q Weifeng Jiang Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material
description	Abstract Mode-division multiplexing (MDM) is a promising approach to dramatically enhance the transmission capacity. A reconfigurable mode (De)multiplexer/switch (RMDS) is a key component for the flexible mode routing in the MDM network. A nonvolatile and ultra-low-loss RMDS is proposed via a triple-silicon-waveguide directional coupler with the Ge2Sb2Se4Te1 (GSST) phase change material (PCM). The nonvolatile property of GSST makes it attractive to reduce the switching power-consumption. Benefiting from the low loss of the GSST-PCM at both amorphous and crystalline states, an RMDS with an ultra-low loss and a high extinction-ratio can be realized. The proposed RMDS is optimally designed by using the full-vectorial finite element method and 3D full-vectorial finite difference time domain method. The numerically simulated results show that a compact RMDS is with the extinction ratios of 18.98 dB and 22.18 dB, ultra-low insertion losses of 0.10 dB and 0.68 dB for the “OFF” and “ON” states, respectively at the operating wavelength of 1550 nm. An ultra-wide bandwidth of 100 nm is achieved for both the “OFF” and “ON” states.
format	article
author	Weifeng Jiang
author_facet	Weifeng Jiang
author_sort	Weifeng Jiang
title	Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material
title_short	Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material
title_full	Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material
title_fullStr	Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material
title_full_unstemmed	Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material
title_sort	nonvolatile and ultra-low-loss reconfigurable mode (de)multiplexer/switch using triple-waveguide coupler with ge2sb2se4te1 phase change material
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/9e3ba93cad5a44b49f8daebd7d294fd8
work_keys_str_mv	AT weifengjiang nonvolatileandultralowlossreconfigurablemodedemultiplexerswitchusingtriplewaveguidecouplerwithge2sb2se4te1phasechangematerial
_version_	1718388140077481984

Nonvolatile and ultra-low-loss reconfigurable mode (De)multiplexer/switch using triple-waveguide coupler with Ge2Sb2Se4Te1 phase change material

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