高能激光束应该具有很好的光束空间特性，为了能在靶上获得高的辐照度，除了要求激光束要有很高的功率，还要有极好的光束质量。在影响光束质量的多种因素中，光束波面的畸变是最敏感和最重要的因素。VISIONICA公司的高阈值变形镜可校正高能激光系统(5.0 kW/cm2)的静态、动态波前畸变，特别可为近、中、远红外脉冲提供一个高精度、高分辨率的波前校正结果。
非水冷型高阈值变形镜
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Substrate
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Si – monocrystal
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Clear aperture diameter
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50x50 mm
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Maximum stroke for each channel (not less)
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6μ
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Number of control electrodes
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36 (6x6)
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|
Application wavelength
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1064nm
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|
Maximum control voltage
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±300 V
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Resonance frequency
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>3000 Hz
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Reflecting coating
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Multilayer dielectric R=99.96%
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Optical damage threshold
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>5 KW/cm2 (CW, intermittent <3 min continuous operation)
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|
Surface quality
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0.064μ
|
|
Hysteresis
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<15 %
|
|
Operating temperature range
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+10..+40 °C
|
|
Storage temperature range
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-30..+70 °C
|
|
Weight (max)
|
1 kg
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水冷型高阈值变形镜
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变形镜型号
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DMС-200/120-32/37B
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DMС-200/140-37/61B
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DMC-150/80-37B
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总口径, mm
|
200
|
150
|
|
有效口径, mm
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Up to 120
|
Up to 140
|
Up to 80
|
|
基底材料
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Monocrystalline Si
|
|
驱动电极数
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37
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37/61
|
37
|
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驱动图形
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Hexagonal, Sectional
|
|
工作波长, µm
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0.5….10.6 (Optional)
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|
驱动类型
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PZT
|
|
单电极校正量, µm, ≥
|
1.8
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2.5/1.6
|
1.0
|
|
总校正量, µm, ≥
|
9.9
|
12
|
2.9
|
|
控制电压, ± V
|
280
|
|
一阶谐振频率, kHz, ≥
|
2.5
|
2.3
|
6.9
|
|
冷却类型
|
Water
|
|
用途
|
for high power CW and frequently pulsed lasers (t> 5…10 sec, q>2…5 kW/cm2)
|
|
选项
|
Multichannel High Voltage Drive
Adjustable Mount
Off-line Cooler
|
