Achromatic Flat Metasurface Fiber Couplers within Telecom Bands

We proposed a single metalens for fiber coupling within telecom bands. This proposed fiber coupler combined a single layer metalens and a Polydimethylsiloxane (PDMS) layer. Instead of traditional fiber collimators, which are bulky and require complex calibration processes, we used a metalens for the...

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Main Authors: Jiayi Li, Rui Li, Xiaojun Xue, Xiao Jiang, Xiaoming Chen, Hsiang-Chen Chui
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/10/1/28
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author Jiayi Li
Rui Li
Xiaojun Xue
Xiao Jiang
Xiaoming Chen
Hsiang-Chen Chui
author_facet Jiayi Li
Rui Li
Xiaojun Xue
Xiao Jiang
Xiaoming Chen
Hsiang-Chen Chui
author_sort Jiayi Li
collection DOAJ
description We proposed a single metalens for fiber coupling within telecom bands. This proposed fiber coupler combined a single layer metalens and a Polydimethylsiloxane (PDMS) layer. Instead of traditional fiber collimators, which are bulky and require complex calibration processes, we used a metalens for the focusing of incident and outgoing lasers and achieve achromatic aberration over a certain wavelength band. The focal length was kept as 514.9 μm with a 6.92-μm tolerance. The average coupling efficiency of an achromatic lens was calculated as 0.43. The different phases were produced with the nanopillar element structures. The aim is to provide an idea for creating a more convenient, integrated and efficient way of coupling fiber optics. This approach can also be applied to the design of achromatic lenses in other wavelength regions.
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spelling doaj.art-2c95ea1f8eec41bbb10e728826d5b10d2023-12-01T00:01:20ZengMDPI AGPhotonics2304-67322022-12-011012810.3390/photonics10010028Achromatic Flat Metasurface Fiber Couplers within Telecom BandsJiayi Li0Rui Li1Xiaojun Xue2Xiao Jiang3Xiaoming Chen4Hsiang-Chen Chui5School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, ChinaCollege of Physics, Dalian University of Technology, Dalian 116024, ChinaPipeChina Group, Beijing Pipe Co., Ltd., Beijing 100020, ChinaLiaoning Zhonglan Electronic Technology Co., Ltd., Panjin 124010, ChinaSchool of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, ChinaSchool of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, ChinaWe proposed a single metalens for fiber coupling within telecom bands. This proposed fiber coupler combined a single layer metalens and a Polydimethylsiloxane (PDMS) layer. Instead of traditional fiber collimators, which are bulky and require complex calibration processes, we used a metalens for the focusing of incident and outgoing lasers and achieve achromatic aberration over a certain wavelength band. The focal length was kept as 514.9 μm with a 6.92-μm tolerance. The average coupling efficiency of an achromatic lens was calculated as 0.43. The different phases were produced with the nanopillar element structures. The aim is to provide an idea for creating a more convenient, integrated and efficient way of coupling fiber optics. This approach can also be applied to the design of achromatic lenses in other wavelength regions.https://www.mdpi.com/2304-6732/10/1/28metalensfiber opticslens designfiber coupling
spellingShingle Jiayi Li
Rui Li
Xiaojun Xue
Xiao Jiang
Xiaoming Chen
Hsiang-Chen Chui
Achromatic Flat Metasurface Fiber Couplers within Telecom Bands
Photonics
metalens
fiber optics
lens design
fiber coupling
title Achromatic Flat Metasurface Fiber Couplers within Telecom Bands
title_full Achromatic Flat Metasurface Fiber Couplers within Telecom Bands
title_fullStr Achromatic Flat Metasurface Fiber Couplers within Telecom Bands
title_full_unstemmed Achromatic Flat Metasurface Fiber Couplers within Telecom Bands
title_short Achromatic Flat Metasurface Fiber Couplers within Telecom Bands
title_sort achromatic flat metasurface fiber couplers within telecom bands
topic metalens
fiber optics
lens design
fiber coupling
url https://www.mdpi.com/2304-6732/10/1/28
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