光リンク用フォトICは、主にPOF (プラスチック光ファイバ)を用いて短距離のデジタル通信を行う用途に用いられます。当社では比較的高速のデータ通信を想定したフォトICを用意しています。なお、光リンク用送信LEDのピーク発光波長はPOF用のため650 nm (赤色)です。
通信速度、通信距離、通信のコーディングを参考にして、光リンク用フォトICを選択してください。
この他、パッケージサイズや耐環境特性も選択の基準になります。詳細についてはデータシートを参照してください。
POFには、電磁誘導による障害がない、調芯の必要がなく組み付けが簡単、低価格、軽量といった特長があります。POFは短距離の高速通信用として幅広く利用されています。
光リンク用フォトICのパッケージには小さなレンズが付いています。これはPOFに対応して設計したもので、高効率にファイバに結合するため、非球面のレンズ設計となっています。樹脂製のためピンセットのような鋭利なもので接触すると、レンズを傷つけファイバ結合損失が発生しますので注意してください。
データシートの絶対最大定格を参照してください。なお、少ない電流の方が、ファイバ結合光出力の経時劣化が少なく長寿命になります。
現状ではPOFのみに対応しています。
光リンク用フォトICは、FA・OA・ホームネットワーク・エンターテインメントなどへの使用を前提に設計されています。人身に関わるような用途では使用できません。人身に関わるような用途で使用することを検討する場合は、使用前にお近くの営業所まで連絡をお願いします。
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