Abstract
For the quantitative analysis of interferograms being of Michelson- or Fizeau-type, fringe pattern analysis or phase-shifting techniques are commonly applied. With fringe pattern analysis, a wavefront is evaluated from only one interferogram, but the "permitted" interferograms are restricted to open fringes. The phase-shifting technique allows the analysis of a greater variety of interferograms, but requires a correlation of three or more measurements.
© 1994 Optical Society of America
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