HASO FIRST Wavefront Sensor

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Specifications

Wavelength Range: 350 – 1100 nm
# Pixels (Width): Not Specified
# Pixels (Height): Not Specified
Lenslet Pitch: Not Specified
Wavefront Accuracy: Other
Type: Shack Hartmann, Hartmann, Zernike, Other / Not specified
Repeatibility: < Lambda/200 RMS
Microlens Number: 44 x 36
Absolute Accuracy: λ/100 RMS
Max. Acquisition Frequency: 150 Hz
Pupil Size: 4.5 x 3.7 mm²
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Features


  • Beam collimation with accuracy of better than 200m radius of curvature

  • 20mm focal length measurement with sensitivity of 1μm rms

  • Direct wavefront acquisition of F/5 beams with λ/100 accuracy, including astigmatism and high-order aberrations

  • Control and adjustment of axial laser beam deviation better than 5 μrad rms

  • 3D localization of focal spot with 0.1μm rms for lateral and 1μm rms for axial resolution (0.1 NA beam)

Applications


  • Quantify optical system’s aberrations

  • Align system for optimal performance

  • Predict system’s focalization and imaging quality

  • Measure effects of temperature and gravity on performance

  • Verify compliance with specifications

  • Pilot wavefront corrector to change aberrations

  • Check if optical mount distorts optics