Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires

Parabolic pulses have important applications in both basic and applied sciences, such as high power optical amplification, optical communications, all-optical signal processing, etc. The generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires at telecom (λ ~ 155...

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Autores principales:	Chao Mei, Feng Li, Jinhui Yuan, Zhe Kang, Xianting Zhang, Binbin Yan, Xinzhu Sang, Qiang Wu, Xian Zhou, Kangping Zhong, Liang Wang, Kuiru Wang, Chongxiu Yu, P. K. A. Wai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1ad104d4c5dc4da680beded024c1f13a
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spelling	oai:doaj.org-article:1ad104d4c5dc4da680beded024c1f13a2021-12-02T16:06:00ZComprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires10.1038/s41598-017-03840-42045-2322https://doaj.org/article/1ad104d4c5dc4da680beded024c1f13a2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03840-4https://doaj.org/toc/2045-2322Parabolic pulses have important applications in both basic and applied sciences, such as high power optical amplification, optical communications, all-optical signal processing, etc. The generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires at telecom (λ ~ 1550 nm) and mid-IR (λ ≥ 2100 nm) wavelengths is demonstrated and analyzed. The self-similar theory of parabolic pulse generation in passive waveguides with increasing nonlinearity is presented. A generalized nonlinear Schrödinger equation is used to describe the coupled dynamics of optical field in the tapered hydrogenated amorphous silicon photonic wires with either decreasing dispersion or increasing nonlinearity. The impacts of length dependent higher-order effects, linear and nonlinear losses including two-photon absorption, and photon-generated free carriers, on the pulse evolutions are characterized. Numerical simulations show that initial Gaussian pulses will evolve into the parabolic pulses in the waveguide taper designed.Chao MeiFeng LiJinhui YuanZhe KangXianting ZhangBinbin YanXinzhu SangQiang WuXian ZhouKangping ZhongLiang WangKuiru WangChongxiu YuP. K. A. WaiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chao Mei Feng Li Jinhui Yuan Zhe Kang Xianting Zhang Binbin Yan Xinzhu Sang Qiang Wu Xian Zhou Kangping Zhong Liang Wang Kuiru Wang Chongxiu Yu P. K. A. Wai Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires
description	Parabolic pulses have important applications in both basic and applied sciences, such as high power optical amplification, optical communications, all-optical signal processing, etc. The generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires at telecom (λ ~ 1550 nm) and mid-IR (λ ≥ 2100 nm) wavelengths is demonstrated and analyzed. The self-similar theory of parabolic pulse generation in passive waveguides with increasing nonlinearity is presented. A generalized nonlinear Schrödinger equation is used to describe the coupled dynamics of optical field in the tapered hydrogenated amorphous silicon photonic wires with either decreasing dispersion or increasing nonlinearity. The impacts of length dependent higher-order effects, linear and nonlinear losses including two-photon absorption, and photon-generated free carriers, on the pulse evolutions are characterized. Numerical simulations show that initial Gaussian pulses will evolve into the parabolic pulses in the waveguide taper designed.
format	article
author	Chao Mei Feng Li Jinhui Yuan Zhe Kang Xianting Zhang Binbin Yan Xinzhu Sang Qiang Wu Xian Zhou Kangping Zhong Liang Wang Kuiru Wang Chongxiu Yu P. K. A. Wai
author_facet	Chao Mei Feng Li Jinhui Yuan Zhe Kang Xianting Zhang Binbin Yan Xinzhu Sang Qiang Wu Xian Zhou Kangping Zhong Liang Wang Kuiru Wang Chongxiu Yu P. K. A. Wai
author_sort	Chao Mei
title	Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires
title_short	Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires
title_full	Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires
title_fullStr	Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires
title_full_unstemmed	Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires
title_sort	comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/1ad104d4c5dc4da680beded024c1f13a
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Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires

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