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Beam generator of 4-channel with zeroth order suppressed by reflective T-type grating.

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Title: Beam generator of 4-channel with zeroth order suppressed by reflective T-type grating.
Authors: Fu, Chen1 (AUTHOR), Wang, Bo1 (AUTHOR) wangb_wsx@yeah.net, Lin, Zefan1 (AUTHOR), Huang, Zhisen1 (AUTHOR), Wen, Kunhua1 (AUTHOR), Meng, Ziming1 (AUTHOR), Nie, Zhaogang1 (AUTHOR), Xing, Xiangjun1 (AUTHOR), Chen, Li1 (AUTHOR), Lei, Liang1 (AUTHOR), Zhou, Jinyun1 (AUTHOR)
Source: Modern Physics Letters B. 5/10/2021, Vol. 35 Issue 13, pN.PAG-N.PAG. 15p.
Subjects: Finite element method, Modal analysis, Energy transfer, Beam splitters
Abstract: Four-port beam splitter with good uniformity was proposed by T-type double-layer with different dielectric grating. The total efficiency of the beam splitter is over 90% with beam splitting uniformity better than 3%. At the same time, the simplified modal analysis is added to calculate the grating mode and effective refractive index of the grating area, which clearly describes the physical propagation mechanism inside the grating. The finite element method is used to investigate the normalized field of the grating, which more intuitively reflects the way of energy transfer inside the grating. Finally, the incident characteristics and manufacturing tolerance of the grating are analyzed. Properties of the T-type grating were analyzed in three methods, which more fully illustrates the applicability and stability of the grating in this paper. [ABSTRACT FROM AUTHOR]
Copyright of Modern Physics Letters B is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 150164703
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Beam generator of 4-channel with zeroth order suppressed by reflective T-type grating.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Fu%2C+Chen%22">Fu, Chen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Bo%22">Wang, Bo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wangb_wsx@yeah.net</i><br /><searchLink fieldCode="AR" term="%22Lin%2C+Zefan%22">Lin, Zefan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Zhisen%22">Huang, Zhisen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wen%2C+Kunhua%22">Wen, Kunhua</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Meng%2C+Ziming%22">Meng, Ziming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nie%2C+Zhaogang%22">Nie, Zhaogang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xing%2C+Xiangjun%22">Xing, Xiangjun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Li%22">Chen, Li</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lei%2C+Liang%22">Lei, Liang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Jinyun%22">Zhou, Jinyun</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Modern+Physics+Letters+B%22">Modern Physics Letters B</searchLink>. 5/10/2021, Vol. 35 Issue 13, pN.PAG-N.PAG. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Modal+analysis%22">Modal analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+transfer%22">Energy transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Beam+splitters%22">Beam splitters</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Four-port beam splitter with good uniformity was proposed by T-type double-layer with different dielectric grating. The total efficiency of the beam splitter is over 90% with beam splitting uniformity better than 3%. At the same time, the simplified modal analysis is added to calculate the grating mode and effective refractive index of the grating area, which clearly describes the physical propagation mechanism inside the grating. The finite element method is used to investigate the normalized field of the grating, which more intuitively reflects the way of energy transfer inside the grating. Finally, the incident characteristics and manufacturing tolerance of the grating are analyzed. Properties of the T-type grating were analyzed in three methods, which more fully illustrates the applicability and stability of the grating in this paper. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Modern Physics Letters B is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1142/S0217984921502183
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      – SubjectFull: Modal analysis
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      – SubjectFull: Energy transfer
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      – SubjectFull: Beam splitters
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      – TitleFull: Beam generator of 4-channel with zeroth order suppressed by reflective T-type grating.
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              Text: 5/10/2021
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              Y: 2021
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