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Broadband multimode interference coupler based on SiN waveguide designed by the adjoint method
http://hdl.handle.net/10258/0002000427
http://hdl.handle.net/10258/0002000427fb6d1013-24c2-4bb3-b9e5-d12b48ae3009
| 名前 / ファイル | ライセンス | アクション |
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fujisawa-final-1 (1).pdf (1.6 MB)
Download is available from 2026/8/7.
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| アイテムタイプ | 学術雑誌論文 / Journal Article.(1) | |||||||||||||||
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| 公開日 | 2025-11-19 | |||||||||||||||
| 書誌情報 |
en : Optics Letters 巻 50, 号 16, p. 4986-4989, 発行日 2025-08-07 |
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| エンバーゴ | ||||||||||||||||
| 日付 | 2026-08-07 | |||||||||||||||
| 日付タイプ | Available | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Broadband multimode interference coupler based on SiN waveguide designed by the adjoint method | |||||||||||||||
| 言語 | en | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| 資源タイプ | ||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| 資源タイプ | journal article | |||||||||||||||
| アクセス権 | ||||||||||||||||
| アクセス権 | embargoed access | |||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_f1cf | |||||||||||||||
| 著者 |
Fujisawa, Takeshi
× Fujisawa, Takeshi
× 辻, 寧英
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | An inverse-designed broadband multimode interference (MMI) coupler based on SiN waveguide is proposed. The widths of the waveguides are modulated based on an adjoint sensitivity analysis. Starting from a gray refractive index distribution, the distribution is binarized at the final design stage to enable the fabrication of the device. Only some tens of iterations are necessary to obtain converged geometry. By modulating the widths of the MMI region, the spectra become very flat over the 100-nm wavelength range. The characteristics of the device are further improved by optimizing the input and output waveguide widths, in addition to the width of the MMI region. The designed device is fabricated, and the measured transmission spectra are in excellent agreement with the calculation, showing the usefulness of the design method. Over 100-nm broadband 3-dB splitting is experimentally demonstrated. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 出版者 | ||||||||||||||||
| 出版者 | Optica Publishing Group | |||||||||||||||
| 言語 | en | |||||||||||||||
| DOI | ||||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | 10.1364/OL.566860 | |||||||||||||||
| ISSN | ||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||
| 収録物識別子 | 0146-9592 | |||||||||||||||
| ISSN | ||||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||||
| 収録物識別子 | 1539-4794 | |||||||||||||||
| 権利 | ||||||||||||||||
| 権利情報 | © 2025 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 著者版フラグ | ||||||||||||||||
| 出版タイプ | AM | |||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||
