SpotOptics Wavefront Sensor – home -> software -> overview


The software people for optics

Sensoft - the software for the
analysis of
Shack-Hartmann frames

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Software Overview

Sensoft is the software for the analysis of Shack-Hartmann frames. It works with our instruments Puntino and Optino, but can equally work with the any other setup. A highlight of Sensoft is the very extensive Help. Detailed information of all the essential aspects of optics, with detailed figures and explanations, are available at your fingertips. See also how you can learn about Shack-Hartmann using our Simulation packages.

Precision		Wavefront: 3nm rms.

Number of spots		Up to 70x70. Limited by size of detector.

Zernike polynomials		Annular, Standard or Fringe Zernikes as well as Seidel polynomial terms can be selected (more than 50 different terms).

Output from analysis		Focus, coma, spherical aberration, astigmatism, and other higher order aberrations (more than 50 terms), 80% EE, wavefront/mirror surface, and Strehl ratio.

Graphical output		Spot diagrams, EE profile and distribution of residuals over the pupil. 3D and contour plot of wavefront or mirror surface. MTF, PSF and EE profile from spot diagrams.

Diagnostics		Given the telescope parameters, Sensoft suggests the changes required to correct defocus, coma and spherical aberration.

Support problems of the optical mountings		Support problems of the mountings can be identified from the contour plots of the wavefront after subtracting out the lower-order aberration terms.

Reduce noise due to air effects		At the telescope, in the laboratory and in the manufacturing workshop, air-turbulence effects can limit the accuracy of the analysis. Sensoft has the facility for averaging coefficients from multiple frames to improve the accuracy.

Information given by Optino and SensoftOptino.
Optino gives you the all the information you would expect from a wavefront analyzer:

the aberrations in terms of Zernike coefficients (more than 50 polynomial terms and 4 different sets of polynomials can be fit to the data).
Strehl ratio, P-V, EE, MTF, PSF, wavefront/mirror surface, spot diagram and more...

With a simple modification of the light source and/or the use of our optional Beam-expander unit, optical elements of practically any diameter and nature (diverging or converging) can be tested from f/0.5 to f/500.
See section on configurations for the various test setup.

We supply standard solutions, but can also work on custom solutions, if you have any special needs.

Example of astigmatism. Click on graphs to enlarge.

3D wavefront

contour

spot diagram

EE distribution

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