Comparison of Shack-Hartmann sensor and point diffraction interferometer for wavefront aberration analysis

Two methods for assessing the image quality of optical systems based on the analysis of wavefront aberration (WA) are presented together. The methods and the experimental setups are broadly described. A comparative study between those two techniques on the analysis of a meniscus lens has been carried out and an equivalence between both techniques has been tested and demonstrated, by comparing the RMS associated to their measured Zernike coefficients.