低損失のホローコアシリカ/エアフォトニックバンドギャップファイバー
Charlene M Smith1, Natesan Venkataraman, Michael T Gallagher
1Corning Incorporated, Sullivan Park, Corning, New York 14831, USA.
Nature
|August 9, 2003
まとめ
研究者らは低衰弱光子帯域間隔繊維を開発し,30dBkm−1未満の損失を達成し,光通信の有意な改善となった. この画期的な発見により,空気中の誘導灯の実用的な応用が可能になり,分散と非線形性を減少させています.
科学分野:
- フォトニクス フォトニクスとは
- 光ファイバー技術について
- 材料科学 材料科学とは
背景:
- フォトニックバンドギャップ構造は,放射線反射のための干渉を利用し,1D,2D,3Dのアプリケーションがあります.
- 初期のホローコアフォトニックバンドギャップ繊維は,空気中核に光を誘導し,レイリー散乱の低さや非線形性などの潜在的な利点を提供しました.
- 製造上の課題は,初期のエアコア繊維を短距離に制限し,損失の研究を妨げました.
研究 の 目的:
- 長い長さ,低衰弱のフォトニックバンドギャップファイバーの製造と特徴を報告する.
- ホールコアフォトニックバンドギャップファイバーの伝送損失の有意な減少を証明するために.
- これらの高度な光ファイバーにおける伝送損失に寄与する重要な要因を特定する.
主な方法:
- 長い長さのホローコア光子バンドギャップファイバーの製造.
- 幅広い伝送窓におけるファイバー減衰の特徴.
- 100mのファイバーサンプルで1,500nmでの最小損失の測定.
主要な成果:
- 広範囲のトランスミッションウィンドウで30dBkm−1未満の衰弱を達成しました.
- 1500 nmで最小のファイバー損失13dB km−1を記録しました.
- 表面モードとコアモードのコップリングが,損失を大きく引き起こす要因として特定された.
結論:
- 大幅に減衰した長長さの光子バンドギャップ繊維を成功裏に製造しました.
- 達成された低損失レベルは,空気誘導光の実用的な応用のための新しい可能性を開きます.
- モードカップリングの理解は,ホローコア光子バンドギャップファイバーの損失をさらに最小限に抑えるために重要です.
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