Synthetic wavelength interferometry for the extension of the dynamic range

Ulf Skudayski; Werner P. O. Jueptner

doi:10.1117/12.47090

1 October 1991 Synthetic wavelength interferometry for the extension of the dynamic range

Ulf Skudayski, Werner P. O. Jueptner

Proceedings Volume 1508, Industrial Applications of Holographic and Speckle Measuring Techniques; (1991) https://doi.org/10.1117/12.47090
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

The relative fringe order in a holographic interference pattern can be measured with high accuracy by means of methods like heterodyning or phase shifting. The determination of the absolute fringe order from the interferogram has not been solved satisfactorily. In this study, the absolute fringe order is determined through the employment of several wavelengths. Two interferograms are recorded with different wavelengths of a dye-laser. The mathematical treatment and an experimental application are reported.

Citation Download Citation

Ulf Skudayski and Werner P. O. Jueptner "Synthetic wavelength interferometry for the extension of the dynamic range", Proc. SPIE 1508, Industrial Applications of Holographic and Speckle Measuring Techniques, (1 October 1991); https://doi.org/10.1117/12.47090

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