Japan (JA)
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特長
- 大きな15 μmモードフィールド径 (MFD)
- ソリッド・ステップインデックス構造
- 偏波保持
- DC-135/14-PM-Ybとのモードマッチング
製品詳細
独自の屈折率制御に基づき、14 μmの偏波保持コアにより、シングルモードで回折限界の出力を実現します。
モード品質は時間経過に対して安定しており、巻き付け状態にも依存しません。
本ファイバは、当社のDC-135/14-PM-Ybファイバとのモード整合が可能で、市販の励起/信号コンバイナとの融着接続に対応しています。
シングルモードの利点
シングルモードファイバは、標準的なマルチモードLMAファイバと比較して以下の利点があります。
・高い出力安定性
・優れたビーム品質
・ファイバの強い曲げによるモード制御が不要
・ファイバの巻き付けに起因するモードエリアの圧縮がない
仕様
光学的特性
| モード特性 | シングルモード |
|---|---|
| カットオフ波長 | ≤ 1000 nm |
| ビーム品質 (代表値 @1064 nm) | M² < 1.2 |
| モードフィールド径 (1/e² @1064 nm) | 15 ± 1 μm |
| 複屈折 Δn (代表値 @1100 nm) | ≥ 1 × 10⁻⁴ |
物理的特性
| 信号コア径 | 約14 μm |
|---|---|
| 外側クラッド径 | 249 ± 3 μm |
| コーティング径 | 350 ± 15 μm |
| コーティング材料 (単層) | 耐熱アクリレート |
| 外側クラッドおよび励起クラッド材料 | 純石英 |
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