10 reasons to use Shack-Hartmann wavefront sensors

Wavefront sensors have various perceived benefits but here are 10 objective reasons that have made Shack-Hartmann the golden standard in the field.

  1.  Real time measurement (up to several kHz)
  2. Achromatic
  3. Absolute measurement (typ. lambda/100, lambda/1000 achievable)
  4. Linearity > 99.9%
  5. Huge dynamic range > 1000 lambdas
  6. Wavefront and intensity maps measured independantly
  7. Simple and robust technology
  8. Insensitive to vibrations
  9. Wavefront measurement even with less than 100 picojoules
  10. 100% beam acquired, user mask not mandatory

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