柔軟なオンチップモード変換とルーティングのための超コンパクトとブロードバンド任意からシングルモードのパワーディバイダーベースのアーキテクチャ
Optics express
|February 20, 2026
まとめ
光モードの柔軟な制御のために,任意から単一モードのパワーディバイダー (ASPD) を使用した新しいフォトニックチップアーキテクチャを開発しました. このコンパクトなデザインは,マルチモード信号のルーティングと変換を簡素化し,高度な光子回路への道を開く.
科学分野:
- フォトニクス フォトニクスとは
- インテグレーテッド光学 (Integrated Optics) とは
- オプティカル・コミュニケーションズ (OPC)
背景:
- マルチモードフォトニックシステムは,高度な機能のために高度なモード操作を必要とします.
- モード変換とルーティングの既存の方法は,複雑で大きくなることがあります.
研究 の 目的:
- 柔軟なマルチモード操作のための汎用的なオンチップアーキテクチャを提案し,実証する.
- 簡素化されたモード変換とルーティングのために,任意から単一モードのパワーディバイダー (ASPD) を活用する.
主な方法:
- 亜波長格子とインテリジェントな最適化アルゴリズムを使用して設計された超コンパクトASPD.
- 標準のシングルモードコンポーネントを搭載したマッハ・ゼンダー・インターフェロメーターのような構造に2つのカスケードASPDユニットを構成しました.
- モード変換とスイッチングのためのアーキテクチャを実験的に検証しました.
主要な成果:
- 低次元のモード (TE0-TE3) のフットプリントは9.5μm以下で,300 nm帯域幅の余剰損失は0.35dB以下である.
- TE0/TE1 ASPDで記録幅500 nm帯域幅 (1300-1800 nm) が実証され,余剰損失は<0.15 dBである.
- コンパクトなフットプリントと優れたパフォーマンスで,上位レベルのモード (TE4-TE7) への拡張性を示しました.
結論:
- 提案されているASPDベースのアーキテクチャは,マルチモード光学集積回路のためのコンパクトでスケーラブルで柔軟なソリューションを提供します.
- 高級モードの直接分解は,ルーティングを簡素化し,複雑なマルチモード要素の必要性を軽減します.
- このプラットフォームは,再構成可能なマルチモードフォトニックシステムへの有望な経路を提供します.
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