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単一周波数ファイバレーザ
Koheras HARMONIK HP H63
624 nm ～ 644 nm帯 高出力ファイバレーザ
ストロンチウム、リチウム、セシウム、ヘリウムにおけるリュードベリ励起で用いられるUV波長変換用途や、633 nm HeNeレーザの高出力代替光源に適した、624 nm ～ 644 nm帯の高出力レーザです。
Koheras HARMONIK HPシリーズは、単一周波数・モードホップフリーで、優れた安定性を備えたファイバレーザで、原子遷移に高精度に対応する狭線幅かつ高出力の光を提供します。
これらの特長を活かし、量子コンピューティング、センシング、計測、通信などの用途に利用可能です。安定した単一周波数動作、低位相ノイズ、低強度ノイズ (RIN)、高OSNRを実現し、産業用途に求められる高い信頼性を備えています。
特長
- 10 W出力
- モードホップフリー動作
- 低RIN
- 優れたビーム品質、M² < 1.1
- 狭線幅
- 優れたポインティング安定性
製品詳細
産業用途における信頼性
Koherasファイバレーザは本質的に高い安定性を備えています。信頼性が高く、アライメント不要で、メンテナンスフリーです。ラックマウントでの設置や、上下反転での設置も可能であり、どのような配置でも問題なく動作します。Koherasレーザは、宇宙関連の研究・実験用途でも使用されている実績があります。サポートが必要な場合は、エンジニアチームが迅速に対応いたします。
これまでに15,000台以上のKoherasレーザが、数十年にわたり要求水準の高い産業用途で導入されています。
超低ノイズ
HARMONIK HPシステムは、超低位相ノイズおよび低RINを実現しています。RINは励起レーザの特性がそのまま維持される一方で、線幅は2倍になります。
独自のファイバデリバリシステム
独自のファイバデリバリシステムにより、必要な場所へ自在に光を導くことができます。このファイバデリバリソリューションは高出力レーザの低ノイズ特性を保持したまま、全ての波長においてシングルモード光を伝送します。
高速波長変調
HARMONIK HPシステムは、扱いやすくユーザーフレンドリーな高速波長変調機能を備えています。この機能は通常、原子遷移線や干渉計などの外部安定基準にレーザをロックし、フリーランニングレーザよりもさらに高い波長安定性を得るために使用されます。
HARMONIKシステムは、出力変動10 %の範囲で15 GHzのモードホップフリーな波長調整を実現します。
温度による調整
すべてのKoherasファイバレーザには、熱電温度コントローラ (TEC)が搭載されています。
TECはレーザの動作を安定化し、周囲温度の変動による影響を受けにくくします。またTECは、レーザの動作温度を変化させることで、中心波長の調整も可能にします。
標準的な室温 (約20 ℃ ～ 30 ℃)において、HARMONIK HP H63は業界トップクラスの400 pmまで温度による調整が可能です。
自由空間出力またはファイバ出力
HARMONIK HP システムは、標準構成では自由空間出力を備えています。ファイバ結合が必要な場合には、高出力伝送を可能にする独自の偏波保持 (PM)シングルモードフォトニック結晶ファイバを用いた効率的な結合方式をご提案できます。
プレアングル型ファイバカプラは、容易かつ迅速にアライメントが可能です。結合効率が非常に高く、経時的な劣化も少ないため、長期にわたり安定した結合を維持できます。
仕様
光学的特性
| 中心波長*1 | 624 nm ～ 644 nm |
|---|---|
| 標準波長 | 638 nm |
| レーザ発振 | CW |
| ビーム品質 | M2 < 1.1 |
| 出力パワー*2 | 10 W |
| 線幅 | < 20 kHz |
| RINピーク | ≈ 1 MHz |
| RINレベル (@peak) | < -100 dBc/Hz |
| RINレベル (10 MHz) | < -140 dBc/Hz |
| 長期安定性 (peak-peak, 1h@25 ℃)*3 | < 10 % |
| 光学S/N比 (50 pm分解能) | > 70 dB |
| PER | > 20 dB |
| 温度による最小波長調整範囲 | ± 140 pm |
| 温度による総波長調整範囲 | 400 pm |
| 高速波長変調範囲 | > 8 GHz |
| 高速波長変調 | 最大20 kHz |
| 19インチラックシステム用励起ユニットサイズ | 8 U |
| 波長変換モジュール数*4 | 1 |
*1 中心波長は指定範囲内で選択可能です。
*2 ショットノイズ限界 > 5 MHz
*3 10分 〜 20分のウォームアップ後。
*4 卓上モジュールとして提供されます。
機械的特性
| 質量 | < 10 kg |
|---|
電気的特性
| 電源要件 | 100 VAC ～ 240 VAC, 50 Hz ～ 60 Hz |
|---|---|
| デジタルインターフェース | RS-485 |
| モニタ出力*1 | 空間出力 |
*1 2.5 m高出力シングルモードファイバデリバリ
外形寸法図 (単位: mm)
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