Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals

Photonic crystals possess metastructures with a unique dispersion relation. An integrated optical circuit plays a crucial role in quantum computing, for which miniaturized optical components can be designed according to the characteristics of photonic crystals. Because the stable light transmission...

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Main Authors: Fu-Li Hsiao, Chia-Ying Ni, Ying-Pin Tsai, Ting-Wei Chiang, Yen-Tung Yang, Cheng-Jui Fan, Hsuan-Ming Chang, Chien-Chung Chen, Hsin-Feng Lee, Bor-Shyh Lin, Kai-Chun Chan, Chii-Chang Chen
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Nanomaterials
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Online Access:https://www.mdpi.com/2079-4991/12/14/2454
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author Fu-Li Hsiao
Chia-Ying Ni
Ying-Pin Tsai
Ting-Wei Chiang
Yen-Tung Yang
Cheng-Jui Fan
Hsuan-Ming Chang
Chien-Chung Chen
Hsin-Feng Lee
Bor-Shyh Lin
Kai-Chun Chan
Chii-Chang Chen
author_facet Fu-Li Hsiao
Chia-Ying Ni
Ying-Pin Tsai
Ting-Wei Chiang
Yen-Tung Yang
Cheng-Jui Fan
Hsuan-Ming Chang
Chien-Chung Chen
Hsin-Feng Lee
Bor-Shyh Lin
Kai-Chun Chan
Chii-Chang Chen
author_sort Fu-Li Hsiao
collection DOAJ
description Photonic crystals possess metastructures with a unique dispersion relation. An integrated optical circuit plays a crucial role in quantum computing, for which miniaturized optical components can be designed according to the characteristics of photonic crystals. Because the stable light transmission mode for a square waveguide is transverse electric or transverse magnetic polarization, we designed a half-waveplate element with a photonic crystal that can rotate the polarization direction of the light incident on a waveguide by 90°. Using the dispersion relation of photonic crystals, the polarization rotation length and the optical axis’s angle of deviation from the electric field in the eigenmode can be effectively calculated. Polarization rotators designed on the basis of photonic crystal structures can effectively reduce the insertion loss of components and exhibit favorable polarization rotation performance.
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spelling doaj.art-eb496afcbc134731a6d9be6d65ba66a32023-12-01T22:31:22ZengMDPI AGNanomaterials2079-49912022-07-011214245410.3390/nano12142454Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic CrystalsFu-Li Hsiao0Chia-Ying Ni1Ying-Pin Tsai2Ting-Wei Chiang3Yen-Tung Yang4Cheng-Jui Fan5Hsuan-Ming Chang6Chien-Chung Chen7Hsin-Feng Lee8Bor-Shyh Lin9Kai-Chun Chan10Chii-Chang Chen11Institute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Imaging and Biomedical Photonics, National Yang Ming Chiao Tung University, Tainan City 711, TaiwanInstitute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Photonics, National Changhua University of Education, Changhua 500, TaiwanInstitute of Imaging and Biomedical Photonics, National Yang Ming Chiao Tung University, Tainan City 711, TaiwanDepartment of Optics and Photonics, National Central University, Taoyuan City 320, TaiwanDepartment of Optics and Photonics, National Central University, Taoyuan City 320, TaiwanPhotonic crystals possess metastructures with a unique dispersion relation. An integrated optical circuit plays a crucial role in quantum computing, for which miniaturized optical components can be designed according to the characteristics of photonic crystals. Because the stable light transmission mode for a square waveguide is transverse electric or transverse magnetic polarization, we designed a half-waveplate element with a photonic crystal that can rotate the polarization direction of the light incident on a waveguide by 90°. Using the dispersion relation of photonic crystals, the polarization rotation length and the optical axis’s angle of deviation from the electric field in the eigenmode can be effectively calculated. Polarization rotators designed on the basis of photonic crystal structures can effectively reduce the insertion loss of components and exhibit favorable polarization rotation performance.https://www.mdpi.com/2079-4991/12/14/2454integrated opticsoptical polarizationphotonic crystals
spellingShingle Fu-Li Hsiao
Chia-Ying Ni
Ying-Pin Tsai
Ting-Wei Chiang
Yen-Tung Yang
Cheng-Jui Fan
Hsuan-Ming Chang
Chien-Chung Chen
Hsin-Feng Lee
Bor-Shyh Lin
Kai-Chun Chan
Chii-Chang Chen
Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals
Nanomaterials
integrated optics
optical polarization
photonic crystals
title Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals
title_full Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals
title_fullStr Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals
title_full_unstemmed Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals
title_short Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals
title_sort design of waveguide polarization convertor based on asymmetric 1d photonic crystals
topic integrated optics
optical polarization
photonic crystals
url https://www.mdpi.com/2079-4991/12/14/2454
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