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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Nature Portfolio
2017
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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) |
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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 |
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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 |
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