リチウムニオバートベースの超コンパクトの折りたたみレーストラックモジュレータは,断熱器のプラットフォームに搭載されています
Optics express
|February 20, 2026
まとめ
研究者らは,折りたたまれた波導体設計を使用してコンパクトなリチウムニオバートレーストラックの調節器を開発しました. このイノベーションにより,デバイスのサイズが大幅に縮小されながら,高度な光学相互接続のための高性能を維持できます.
科学分野:
- フォトニクスと材料科学 フォトニクスと材料科学
- インテグレーテッド光学 (Integrated Optics) とは
- 電気光学装置 電気光学装置
背景:
- 薄膜リチウムニオバート (LNO) は高速電気光学調節器に不可欠です.
- 従来のLNOモデュレータは,高密度統合を妨げ,サイズ制限 (cmスケール) に直面しています.
研究 の 目的:
- LNOモジュレータのサイズ制約を克服するために.
- 次世代の光学インターコネクトのための超コンパクトのブロードバンド変調器を開発する.
主な方法:
- 折りたたまれた波導体と電極の構成を使用した新しいリチウムニオバートレーストラックモデュレータを提案しました.
- デバイスのフットプリントを最小限に抑えるための構造再構成.
主要な成果:
- 8 pm/V.の調節効率を達成しました.
- 30.5GHzの電気光学帯域幅を実証しました.
- 112 Gbps (56 GBaud PAM-4) でデータを成功裏に送信しました.
結論:
- 提案されたモデュレータは,マッハ・ゼンダーモデュレータと比較して面積を数桁減少させる.
- 帯域幅をほぼ2倍にし,従来のレーストラックモデュレータと比較して足跡を半分に削減します.
- 光学相互接続における超コンパクトのブロードバンド変調器への経路を確立する.
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