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法国ALPAO的WFS-VIS &WFS-SWIR是两款基于Shack-Hartmann原理的波前传感器,主要用于实时测量大气湍流引起的波前失真。两款产品分别适用于可见光波段和近红外波段,其中,WFS-SWIR使用优异的InGaAs传感器。Alpao波前传感器具有高灵敏度和高工作频率的显著优点,而且专门针对延迟进行了优化,以满足用户在严苛条件下的要求、/span>
哈特曼波前传感器WFS-SWIR核心特点9/span>
l高灵敏度:量子效玆/span>QE>70%@1500nm
l高工作频率:高达3kHz
l优化大气校正
哈特曼波前传感器型号及参数:
Model |
SWIR WFS-69 |
SWIR WFS-97 |
SWIR WFS-277 |
SWIR WFS-468 |
|
Sensor type |
InGaAs |
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Acquisition frequency |
3kHz |
2kHz |
1kHz |
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Sensor maximum quantum efficiency |
>90% at 600nm |
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Number of microlenses |
8x8 |
10x10 |
16x16 |
23x23 |
|
Microlens pitch |
240m |
264m |
240m |
167m |
|
Spectral range |
0.9m - 1.7m |
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Interface |
Camera Link |
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Dynamic in tip-tilt / focus (PtV) |
1 0m |
10m |
15m |
10m |
|
Residual WFE error on closed loop * |
20nm RMS |
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Absolute precision * |
/20 RMS |
||||
Repeatability * |
10nm RMS |
||||
Typical noise (RMS) |
< 700 electron(low gain) |
||||
Typical noise (RMS) |
< 150 electron(high gain) |
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Operating temperature |
0C to 30C |
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Recommended DM |
DM69 |
DM97 |
DM277 |
DM468 |
备注*: 在良好的光量条件下且没有波前扰动、/span>
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