A photonic-plasmonic mode converter using mode-coupling-based polarization rotation for metal-inserted silicon platform
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- Ishizaka Yuhei
- Department of Science and Engineering, Kanto Gakuin University
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- Nagai Masaru
- Graduate School of Information Science and Technology, Hokkaido University
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- Fujisawa Takeshi
- Graduate School of Information Science and Technology, Hokkaido University
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- Saitoh Kunimasa
- Graduate School of Information Science and Technology, Hokkaido University
抄録
<p>We present a photonic-plasmonic mode converter using mode-coupling-based polarization rotation for connecting a silicon wire and hybrid plasmonic waveguides on a metal-inserted silicon platform. By using the polarization rotator based on defect-introduced silicon wire waveguide, the proposed mode converter can convert the photonic TE mode into the hybrid plasmonic TM mode. At the beginning, to identify a cross-sectional structure for polarization conversion, we investigate the hybrid parameters that determine the degree of mode rotation using the two-dimensional vector finite element method. Next, using the three-dimensional vector finite element method, we investigate the conversion characteristics of the whole device including input and output ports. Numerical results show that the extinction ratio of 46 dB and the insertion loss of 0.36 dB are achieved. The tolerance of the defect is also numerically evaluated. Our proposed mode converter can reduce insertion losses compared to conventional mode converters based on a taper-introduced butt joint structure.</p>
収録刊行物
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- IEICE Electronics Express
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IEICE Electronics Express 14 (2), 20160989-20160989, 2017
一般社団法人 電子情報通信学会
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詳細情報 詳細情報について
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- CRID
- 1390282680196788608
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- NII論文ID
- 120006220060
- 130005300391
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- ISSN
- 13492543
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- HANDLE
- 2115/65124
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- 本文言語コード
- en
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- データソース種別
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- 使用不可