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リチウムニオバートマイクロリング共鳴器におけるブロードバンド電気光学周波数の生成
Mian Zhang1,2, Brandon Buscaino3, Cheng Wang1,4
1John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
Nature
|March 13, 2019
まとめ
統合された電気光学 (EO) は,チップ上で広い,安定した光学周波数スペクトルを生成します. 通信やスペクトロスコピーの分野で 進歩した応用が可能になりました
科学分野:
- 光学について
- 光学工学
- 材料科学
背景:
- 光学通信,計測,計時,スペクトロスコーピーのために重要なものです.
- モードロックされたレーザーや Kerr非線形性などの既存のコン生成方法は,スペクトル幅と統合の制限があります.
- 電気光学 (EO) は安定性と制御性を提供しますが,以前は狭い幅と弱い相互作用によって制限されていました.
研究 の 目的:
- 以前の EO の限界を克服し,統合された EO の発電機を開発する.
- より広いスペクトルとEOコンブ発電の制御性を向上させる.
- 先進的なアプリケーションのための統合されたEOの可能性を調査する.
主な方法:
- 薄膜リチウムニオバート光子プラットフォーム上の統合EO発電機の開発.
- プラットフォームの大きなEO応答, 超低光学損失, 共同ローカライズされたフィールドを活用します.
- 分散工学を実装し,コンブを改良する.
主要な成果:
- 電気通信のLバンド (900以上のライン) よりも多くの周波数に及ぶEOコンブを実証した.
- 散布工学によるオクターブ範囲のの将来的な可能性を示した.
- 周波数間隔 (10 Hzから100 MHz) を精密に制御し,二重周波数を生成しました.
結論:
- 統合されたEOコンブジェネレーターは,幅広く安定した光学周波数コンブスペクトルを生成できます.
- これらの統合されたEOの再構成性は,統合されたKerrを補完します.
- これらの装置は,光譜と光学通信を含む多様なアプリケーションを可能にします.
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