All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications

Abstract The femtosecond laser micromachining of transparent optical materials offers a powerful and feasible solution to fabricate versatile photonic components towards diverse applications. In this work, we report on a new design and fabrication of ridge waveguides in LiNbO3 crystal operating at t...

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Autores principales:	Lingqi Li, Weijie Nie, Ziqi Li, Qingming Lu, Carolina Romero, Javier R. Vázquez de Aldana, Feng Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0f42654ff2dd4d019558fd4d806bae3e
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spelling	oai:doaj.org-article:0f42654ff2dd4d019558fd4d806bae3e2021-12-02T11:40:44ZAll-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications10.1038/s41598-017-07587-w2045-2322https://doaj.org/article/0f42654ff2dd4d019558fd4d806bae3e2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07587-whttps://doaj.org/toc/2045-2322Abstract The femtosecond laser micromachining of transparent optical materials offers a powerful and feasible solution to fabricate versatile photonic components towards diverse applications. In this work, we report on a new design and fabrication of ridge waveguides in LiNbO3 crystal operating at the mid-infrared (MIR) band by all-femtosecond-laser microfabrication. The ridges consist of laser-ablated sidewalls and laser-written bottom low-index cladding tracks, which are constructed for horizontal and longitudinal light confinement, respectively. The ridge waveguides are found to support good guidance at wavelength of 4 μm. By applying this configuration, Y-branch waveguiding structures (1 × 2 beam splitters) have been produced, which reach splitting ratios of ∼1:1 at 4 μm. This work paves a simple and feasible way to construct novel ridge waveguide devices in dielectrics through all-femtosecond-laser micro-processing.Lingqi LiWeijie NieZiqi LiQingming LuCarolina RomeroJavier R. Vázquez de AldanaFeng ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lingqi Li Weijie Nie Ziqi Li Qingming Lu Carolina Romero Javier R. Vázquez de Aldana Feng Chen All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications
description	Abstract The femtosecond laser micromachining of transparent optical materials offers a powerful and feasible solution to fabricate versatile photonic components towards diverse applications. In this work, we report on a new design and fabrication of ridge waveguides in LiNbO3 crystal operating at the mid-infrared (MIR) band by all-femtosecond-laser microfabrication. The ridges consist of laser-ablated sidewalls and laser-written bottom low-index cladding tracks, which are constructed for horizontal and longitudinal light confinement, respectively. The ridge waveguides are found to support good guidance at wavelength of 4 μm. By applying this configuration, Y-branch waveguiding structures (1 × 2 beam splitters) have been produced, which reach splitting ratios of ∼1:1 at 4 μm. This work paves a simple and feasible way to construct novel ridge waveguide devices in dielectrics through all-femtosecond-laser micro-processing.
format	article
author	Lingqi Li Weijie Nie Ziqi Li Qingming Lu Carolina Romero Javier R. Vázquez de Aldana Feng Chen
author_facet	Lingqi Li Weijie Nie Ziqi Li Qingming Lu Carolina Romero Javier R. Vázquez de Aldana Feng Chen
author_sort	Lingqi Li
title	All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications
title_short	All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications
title_full	All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications
title_fullStr	All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications
title_full_unstemmed	All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications
title_sort	all-laser-micromachining of ridge waveguides in linbo3 crystal for mid-infrared band applications
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/0f42654ff2dd4d019558fd4d806bae3e
work_keys_str_mv	AT lingqili alllasermicromachiningofridgewaveguidesinlinbo3crystalformidinfraredbandapplications AT weijienie alllasermicromachiningofridgewaveguidesinlinbo3crystalformidinfraredbandapplications AT ziqili alllasermicromachiningofridgewaveguidesinlinbo3crystalformidinfraredbandapplications AT qingminglu alllasermicromachiningofridgewaveguidesinlinbo3crystalformidinfraredbandapplications AT carolinaromero alllasermicromachiningofridgewaveguidesinlinbo3crystalformidinfraredbandapplications AT javierrvazquezdealdana alllasermicromachiningofridgewaveguidesinlinbo3crystalformidinfraredbandapplications AT fengchen alllasermicromachiningofridgewaveguidesinlinbo3crystalformidinfraredbandapplications
_version_	1718395562381803520

All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications

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