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OA光学衰减片
特点：
平滑功率衰减
调谐与操作简单
电动USB
可优化用于<50 fs
光学衰减片OAFP-S (OAFP-M)，OAGP-S (OAGP-M) 设计用于衰减激光辐射，消光比>1:10。OAFP包含薄片零级半波片及两个偏振片，可以根据偏振态选择入射脉冲。该型号引入的脉冲色散非常小，已经被专门用于<50 fs的脉冲飞秒辐射。对于长脉宽，我们提供OAGP，由于采用格兰棱镜简化其设计，其透过率要好很多。
衰减器根据USB接口及控制器的运行模式，有手动 (-M) 及电动 (-S) 版本可供选择。
OAFP-S OAFP-M | ОAGP-10-SОAGP-10-M | ОAGP-16-SОAGP-16-M | ОABS-16-SОABS-16-M | |
Dynamic attenuation range | >102 | |||
Input pulse duration | less than 50 fs | >50 fs | >50 fs | |
Central wavelength* (fixed) | 250-2000 nm | |||
Bandwidth** (% of central wavelength) | 7-8% | 10-15% | 15-20% | |
Transmission | >92% | >90% | >80% | |
Clear aperture | <10 mm | <10 mm | <16 mm | <16 mm |
Beam deflection | 40 mm (walk-off) | <1 mrad | <1 mrad | |
Damage threshold | 10 J/cm2 | 5 J/cm2 | 2 J/cm2 | |
Note: models with the "-S" index are driven by a step motor， transmission change for motorized models: 0.1% per step; models with the "-М" index are manually driven; * - please specify a certain value from the given range with your request; ** - depends on central wavelength. | ||||
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