JP7142730B2 - 光学ビームを分割するフォトニックデバイス - Google Patents
光学ビームを分割するフォトニックデバイス Download PDFInfo
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- JP7142730B2 JP7142730B2 JP2020569923A JP2020569923A JP7142730B2 JP 7142730 B2 JP7142730 B2 JP 7142730B2 JP 2020569923 A JP2020569923 A JP 2020569923A JP 2020569923 A JP2020569923 A JP 2020569923A JP 7142730 B2 JP7142730 B2 JP 7142730B2
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
- G02B6/2773—Polarisation splitting or combining
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1225—Basic optical elements, e.g. light-guiding paths comprising photonic band-gap structures or photonic lattices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/125—Bends, branchings or intersections
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12035—Materials
- G02B2006/12061—Silicon
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12133—Functions
- G02B2006/1215—Splitter
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
- G02B6/2813—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs based on multimode interference effect, i.e. self-imaging
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Integrated Circuits (AREA)
Description
オンチップパワースプリッタは、集積フォトニックシステムの重要な構成要素である。パワースプリッタは、単一のビームを、予め設計された分割比で複数のビームに分けるのに用いられる。数多くのパワースプリッタデバイスが開発され、Y形状パワースプリッタ、MMIベースのパワースプリッタ、又は高速応答(QR)コード状のナノ構造パワースプリッタの伝送効率は、80%までに制限されてきた。
Claims (13)
- 光学ビームを分割するフォトニックデバイスであって、
入力パワーを有する入力ビームを受信するように構成された入力ポートと、
第1の屈折率を有するガイド材料の第1の領域及び第2の領域内に配置された分割セグメントおよび摂動セグメントを含むパワースプリッタであって、
前記分割セグメントおよび前記摂動セグメントはナノ構造セグメントの群により構成され、
前記分割セグメントおよび前記摂動セグメントは第2の屈折率を有し、
前記第1の領域は、前記分割セグメントが前記ガイド材料の領域内で設けられる位置によって定義される第1の入力幅および第2の入力幅によって決められる比率に基づいて、前記入力ビームを前記第1の入力幅によってガイドされる第1のビーム及び前記第2の入力幅によってガイドされる第2のビームに分割するように構成され、
前記第2の領域は、前記第1のビーム及び前記第2のビームを別個にガイドするように構成され、
前記第1の屈折率は前記第2の屈折率よりも高く、前記摂動セグメントの間の最小ピッチdは、以下の条件を満たすように配置され、
パワースプリッタと、
それぞれ前記第1のビーム及び前記第2のビームを受信及び送信するように前記パワースプリッタに接続された第1の出力ポート及び第2の出力ポートを含む出力ポートと、
を備え、
前記分割セグメントは、前記入力ポートから前記出力ポートに向かう方向に配置される、フォトニックデバイス。 - 前記出力ポートは出力材料から形成され、
前記入力ポートは入力材料から形成され、
前記第1の出力ポート及び前記第2の出力ポートの幅は同一であり、
前記パワースプリッタの幅は、前記入力ポート並びに前記第1の出力ポート及び前記第2の出力ポートの幅よりも大きい、
請求項1に記載のフォトニックデバイス。 - 前記入力材料、前記ガイド材料及び前記出力材料は同一の厚みを有する、
請求項2に記載のフォトニックデバイス。 - 前記入力ポート及び前記出力ポートの幅のそれぞれは、前記パワースプリッタに向かって広がるように構成される、
請求項1に記載のフォトニックデバイス。 - 前記入力材料、前記出力材料及び前記ガイド材料は同一の材料である、
請求項2に記載のフォトニックデバイス。 - 前記同一の材料はシリコンである、
請求項5に記載のフォトニックデバイス。 - 前記同一の材料はInGaAsPである、
請求項5に記載のフォトニックデバイス。 - 前記フォトニックデバイスは、最上層及び最下層を更に備え、
第3の屈折率を有する前記最上層及び前記最下層は、前記入力ポート、前記パワースプリッタ及び前記出力ポートを挟持するように構成され、
前記第1の屈折率は前記第3の屈折率よりも高い、
請求項1に記載のフォトニックデバイス。 - 前記最上層及び前記最下層は、二酸化ケイ素層である、
請求項8に記載のフォトニックデバイス。 - 前記摂動セグメントのそれぞれは、前記ガイド材料における孔によって形成される、
請求項1に記載のフォトニックデバイス。 - 前記摂動セグメントのうちの少なくとも1つは、前記最小ピッチdよりも大きな距離だけ他の摂動セグメントから離れるように配置される、
請求項1に記載のフォトニックデバイス。 - 前記入力材料及び前記出力材料の屈折率は、前記第1の屈折率と同一である、
請求項2に記載のフォトニックデバイス。 - 前記第1の出力ポートのパワー及び前記第2の出力ポートのパワーのパワー比がT1:T2によって表され、
T1<T2であるとき、前記第1の出力ポートに対応する第1の入力幅は、前記第2の出力ポートに対応する第2の入力幅未満になるように配置される、
請求項1に記載のフォトニックデバイス。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US201862727588P | 2018-09-06 | 2018-09-06 | |
US62/727,588 | 2018-09-06 | ||
US16/214,502 | 2018-12-10 | ||
US16/214,502 US10859769B2 (en) | 2018-09-06 | 2018-12-10 | Compact photonic devices |
PCT/JP2019/018200 WO2020049796A1 (en) | 2018-09-06 | 2019-04-23 | Photonic device for splitting optical beams |
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JP2021527848A JP2021527848A (ja) | 2021-10-14 |
JP7142730B2 true JP7142730B2 (ja) | 2022-09-27 |
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US (1) | US10859769B2 (ja) |
EP (1) | EP3669220B1 (ja) |
JP (1) | JP7142730B2 (ja) |
CN (1) | CN112601994B (ja) |
WO (1) | WO2020049796A1 (ja) |
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CN113191115B (zh) * | 2021-05-13 | 2022-08-09 | 中国人民解放军国防科技大学 | 基于dbs算法的可编程任意功率分配器 |
CN114153027B (zh) * | 2022-01-24 | 2023-12-19 | 吉林大学 | 一种基于mmi结构的少模波导光功率分配器及其制备方法 |
US12050347B2 (en) * | 2022-05-24 | 2024-07-30 | Taiwan Semiconductor Manufacturing Company, Ltd. | Vertical polarizing beamsplitter for photonics |
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Publication number | Publication date |
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EP3669220A1 (en) | 2020-06-24 |
JP2021527848A (ja) | 2021-10-14 |
CN112601994B (zh) | 2022-11-04 |
EP3669220B1 (en) | 2021-07-28 |
US10859769B2 (en) | 2020-12-08 |
US20200081188A1 (en) | 2020-03-12 |
WO2020049796A1 (en) | 2020-03-12 |
CN112601994A (zh) | 2021-04-02 |
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