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Polarization-independent highly-efficient splitter based on the cross-shaped ridge structure.

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Title: Polarization-independent highly-efficient splitter based on the cross-shaped ridge structure.
Authors: Lin, Zefan1 (AUTHOR), Wang, Bo1,2 (AUTHOR) wangb_wsx@yeah.net, Wen, Kunhua1,2 (AUTHOR)
Source: Optics Communications. Feb2022, Vol. 505, pN.PAG-N.PAG. 1p.
Subjects: Beam splitters, Simulated annealing, Algorithms, Reference values
Abstract: A polarization-independent highly-efficient transmission beam splitter based on the cross-shaped ridge structure is proposed in this paper. Based on the rigorous coupled-wave analysis (RCWA) and the simulated annealing (SA) algorithm, the efficiencies of 32.33% of 0th order and 32.42% of ± 1st order for transverse electric (TE) polarization and 32.53% of 0th order and 32.60% of ± 1st order for transverse magnetic (TM) polarization can be achieved. In addition, the simplified modal method (SMM) is applied to analysis the internal energy changes process in detail. What is more, different from the reported references only considering the case of one layer, we also used the SMM to analyze the three-port cross-array beam splitter under normal incidence with the approximation treatment. The results show that the method of which has certain reference value, which can be the guidance of the design of the gratings with similar structures in the future. • A polarization-independent splitter by the cross-shaped ridge structure • Efficiencies 32.33% of 0th order and 32.42% of ±1st order for TE polarization. • Efficiencies 32.53% of 0th order and 32.60% of ±1st order for TM polarization. • Three vector theories of RCWA, SA and SMM applied to the analyzation. [ABSTRACT FROM AUTHOR]
Copyright of Optics Communications is the property of Elsevier B.V. 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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DbLabel: Engineering Source
An: 153679103
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PubTypeId: academicJournal
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  Data: Polarization-independent highly-efficient splitter based on the cross-shaped ridge structure.
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  Data: <searchLink fieldCode="AR" term="%22Lin%2C+Zefan%22">Lin, Zefan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Bo%22">Wang, Bo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wangb_wsx@yeah.net</i><br /><searchLink fieldCode="AR" term="%22Wen%2C+Kunhua%22">Wen, Kunhua</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Optics+Communications%22">Optics Communications</searchLink>. Feb2022, Vol. 505, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Beam+splitters%22">Beam splitters</searchLink><br /><searchLink fieldCode="DE" term="%22Simulated+annealing%22">Simulated annealing</searchLink><br /><searchLink fieldCode="DE" term="%22Algorithms%22">Algorithms</searchLink><br /><searchLink fieldCode="DE" term="%22Reference+values%22">Reference values</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A polarization-independent highly-efficient transmission beam splitter based on the cross-shaped ridge structure is proposed in this paper. Based on the rigorous coupled-wave analysis (RCWA) and the simulated annealing (SA) algorithm, the efficiencies of 32.33% of 0th order and 32.42% of ± 1st order for transverse electric (TE) polarization and 32.53% of 0th order and 32.60% of ± 1st order for transverse magnetic (TM) polarization can be achieved. In addition, the simplified modal method (SMM) is applied to analysis the internal energy changes process in detail. What is more, different from the reported references only considering the case of one layer, we also used the SMM to analyze the three-port cross-array beam splitter under normal incidence with the approximation treatment. The results show that the method of which has certain reference value, which can be the guidance of the design of the gratings with similar structures in the future. • A polarization-independent splitter by the cross-shaped ridge structure • Efficiencies 32.33% of 0th order and 32.42% of ±1st order for TE polarization. • Efficiencies 32.53% of 0th order and 32.60% of ±1st order for TM polarization. • Three vector theories of RCWA, SA and SMM applied to the analyzation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Optics Communications is the property of Elsevier B.V. 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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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.optcom.2021.127499
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
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      – SubjectFull: Beam splitters
        Type: general
      – SubjectFull: Simulated annealing
        Type: general
      – SubjectFull: Algorithms
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      – SubjectFull: Reference values
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      – TitleFull: Polarization-independent highly-efficient splitter based on the cross-shaped ridge structure.
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            NameFull: Lin, Zefan
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            NameFull: Wang, Bo
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              Text: Feb2022
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              Y: 2022
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