AF光学法拉第隔离器法拉第旋转器
描述:
法拉第隔离器(FI)是一种不可逆的光学装置,它将一束方向的线偏振光透过并偏转回光。它通常由法拉第旋转器和两个偏振器组成。法拉第旋转器由置于永磁体系(Nd-Fe-B)中的磁光活性材料制成。
有两种类型的磁光活性材料可供选择:铽掺杂玻璃,铽镓石榴石(TGG)晶体。
隔离器通过将反射和背散射光衰减几个数量级(10 ^ 4到10 ^ 6)来保护激光源。当某些设备对光学反馈有极高的敏感度时,也会使用它,这会导致强度不稳定,频率拉动和其他不良影响。 法拉第隔离器在CPA(啁啾脉冲放大)激光器布局中也是不可缺少的,其中种子振荡器及其泵源可能偶尔被后向反射而容易受到损坏。
特性:
?- 400到1250 nm工作波长
- 高达60 dB的峰值隔离度
?- 92%透射率
?- 宽带和可调型号可选
?- 薄膜偏振器(TFP),LIDT >5 J/cm^2 at 10 ns
选项:
-TFP: 对于一些常见激光波长(如800,1030,1064nm),在10ns时具有5J / cm^2的较高激光诱导损伤阈值的薄膜偏振器;
-60dB: 可定制的双晶(两级,双级)光学法拉第隔离器单元,隔离比高达60dB;
-HT: 一些隔离器模型可能被升级为具有高达92%的透射率,其中一个格兰棱镜偏振器用于洛匈棱镜,然而,这也使得被拒射束的角度更接近主光束路径。
参数规格:
- 部件号中:
AFR 表示法拉第旋转器(无偏振器供应),
AFI 表示法拉第隔离器(附带偏振器),
PI 表示偏振无关隔离器(带偏振器)
- 损伤阈值(典型值): AFI隔离器:1 J/cm^2 at 10 ns; AFR rotators: 5 J/cm^2 at 10 ns;一些隔离器型号可用TFP版本,10 ns时可提供5 J / cm^2分的DT,详情请咨询;
- 光功率: TGG材料比Glass材料具有更高的平均功率阈值(我们推荐TGG用于平均功率大于10 W / cm^2的光束); - 在使用适当选择的外部偏光镜的情况下,旋转器的隔离率显示可实现的隔离率。
AF光学法拉第隔离器法拉第旋转器的基本型号如下,定制规格请进一步咨询:
中心波长 nm | 通光孔径 mm 1) | 型号 | 材料 | 隔离峰值 dB 2) | 带宽 | Tpeak % | 尺寸(光束高) mm | |
1250 nm | 5 mm | 5AFR-1250C | TGG | 38 dB | ±5 nm | 98% | 65x71x77 (42) | |
5AFI-1250C | 90% | 90x71x77 (42) | ||||||
1030...1070 nm, fixed | 2 mm | 2AFR-1064C | TGG | 38 dB | ±10 nm | 98% | 50x38x46 (26) | |
2AFI-1064C | 90% | 78x38x46 (26) | ||||||
4 mm | 4AFR-1064C | 38 dB | ±10 nm | 98% | 52x45x51 (28.5) | |||
4AFI-1064C | 90% | 85x45x51 (28.5) | ||||||
6 mm | 6AFR-1064C | 38 dB | ±10 nm | 98% | 55x48x54 (30) | |||
6AFI-1064C | 90% | 92x48x54 (30) | ||||||
8 mm | 8AFR-1064C | 38 dB | ±10 nm | 98% | 62x59x65 (35.5) | |||
8AFI-1064C | 90% | 100x59x65 (35.5) | ||||||
10 mm | 10AFR-1064C | 38 dB | ±10 nm | 98% | 65x66x72 (39) | |||
10AFI-1064C | 90% | 110x66x72 (39) | ||||||
12 mm | 12AFR-1064C | 38 dB | ±10 nm | 98% | 69x71x77 (41.5) | |||
12AFI-1064C | 90% | 120x71x77 (41.5) | ||||||
1030 nm, | 2 to 12 mm | (2-12)AFRB-1030C | TGG | 35 dB | 980-1070 nm | 98% | W, H same as fixed, L+8 mm | |
(2-12)AFIB-1030C | 88% | |||||||
700...900 nm, | 2 mm | 2AFR-800C, G | TGG (C) or Glass (G) | 38 dB | ±10 nm | 98% | 50x38x46 (26) | |
2AFI-800C, G | 90% | 78x38x46 (26) | ||||||
4 mm | 4AFR-800C, G | 38 dB | ±10 nm | 98% | 52x45x51 (28.5) | |||
4AFI-800C, G | 90% | 85x45x51 (28.5) | ||||||
5 mm | 5AFR-800C, G | 38 dB | ±10 nm | 98% | 52x48x54 (30) | |||
5AFI-800C, G | 90% | 88x48x54 (30) | ||||||
8 mm | 8AFR-800C, G | 38 dB | ±10 nm | 98% | 62x59x65 (35.5) | |||
8AFI-800C, G | 90% | 100x59x65 (35.5) | ||||||
10 mm | 10AFR-800C, G | 38 dB | ±10 nm | 98% | 65x66x72 (39) | |||
10AFI-800C, G | 90% | 110x66x72 (39) | ||||||
12 mm | 12AFR-800C, G | 38 dB | ±10 nm | 98% | 69x71x77 (41.5) | |||
12AFI-800C, G | 90% | 120x71x77 (41.5) | ||||||
15 mm | 15AFR-800C, G | 38 dB | ±10 nm | 98% | 71x81x84 (46) | |||
15AFI-800C, G | 90% | 140x81x84 (46) | ||||||
700-880 nm, | 4 to 12 mm | (4-12)AFRB-800C, G | TGG (C) or Glass (G) | 35 dB | ±60 nm | 98% | W, H same as fixed, L+6 mm | |
(4-12)AFIB-800C, G | 88% | |||||||
710-880 nm, | 4 to 12 mm | (4-12)AFIТ-800C, G | TGG (C) or Glass (G) | 38 dB | ±10 nm (tunable) | 88% | W, H same as fixed, L+50 mm | |
633 nm | 4 mm | 4AFR-633С | TGG | 38 dB | ±10 | 98% | 52x45x51 (28.5) | |
4AFI-633С | 85% | 85x45x51 (28.5) | ||||||
5 mm | 5AFR-633G | Glass | 38 dB | ±10 | 98% | 52x48x54 (30) | ||
5AFI-633G | 85% | 90x48x54 (30) | ||||||
532 nm | 2 mm | 2AFR-532С | TGG | 38 dB | ±10 | 97% | 30x38x46 (26) | |
2AFI-532С | 85% | 75x38x46 (26) | ||||||
5 mm | 5AFR-532С | 38 dB | ±10 | 97% | 30x48x54 (30) | |||
5AFI-532С | 85% | 90x48x54 (30) | ||||||
8 mm | 8AFR-532С | 38 dB | ±10 | 97% | 42x59x65 (35.5) | |||
8AFI-532С | 85% | 100x59x65 (35.5) | ||||||
10 mm | 10AFR-532С | 38 dB | ±10 | 97% | 45x66x72 (39) | |||
10AFI-532С | 85% | 110x66x72 (39) | ||||||
400 nm | 4 mm | 4AFR-400С | TGG | 38 dB | ±5 | 85% | 30x45x51 (28.5) | |
4AFI-400С | 75% | 60x45x51 (28.5) | ||||||
6 mm | 6AFR-400С | 38 dB | ±5 | 85% | 30x48x54 (30) | |||
6AFI-400С | 75% | 70x48x54 (30) | ||||||
Polarization-independent isolators: | ||||||||
1064 nm | 1.53) mm | PI35C4) | TGG | 35 dB | ±5 | 90% | 120x48x52 (28) | |
1064 nm | 1.53) mm | PI35C35) | TGG | 35 dB | ±5 | 90% | 80x32x32 | |
1)典型的孔径,其他孔径可根据要求提供; 2)可根据要求提供> 60 dB的双级光隔离器; 3)输入光束直径在1 / e ^ 2; 4)具有光纤输入的PI35CF型号可用; 5)小包装。 |
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6AFI-1064C坚固耐用的法拉第隔离器装置,从输入格兰偏光镜上取下保护帽
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