3.12.09

The maximum intensity is the simplest objective function I can think of from images of the beam profile. Comparing it to the wavefront norm using the PI controller (still the best algorithm right now) shows pretty decent correlation between the two.



As expected, the maximum intensity doesn't correspond to the minimum wavefront error. This is because the code I wrote to read the WFS images doesn't use the exact lenselet locations, so the measured wavefront isn't exactly accurate. Also, the camera isn't placed exactly in the focal plane. These are problems that'll have to be fixed once I get the new sensor.