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Proceedings Paper

System Characterization Using A Lateral Shearing Interferometer
Author(s): Michael K. Giles; James L. Jernigan; Donald P. Murphy
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Paper Abstract

A lateral shearing interferometer similar to that described by Rimmer and WyantI was built and used to characterize an off-axis collimator/beam combiner system. Reduction of the interferogram data was accomplished by using an image processing system to digitize the fringe data convert the two orthogonal slope interferograms to a single wavefront interferogram, and then compute the system optical transfer function (nTP). The software was derived from a version of the FRINGE code (developed at the University of Arizona) modified to run on a VAX 11/780--DeAnza 1P8500 image processing system. The double crossed gratings (420 line pairs per millimeter) used to obtain orthogonal interferograms of the wavefront slope were produced using a technique based o Lloyd's mirror. This paper presents the technique used to produce the gratings, the configuration of the interferometer, and the results obtained (both interferometric and reduced OTF data).

Paper Details

Date Published: 20 November 1985
PDF: 8 pages
Proc. SPIE 0540, Southwest Conf on Optics '85, (20 November 1985); doi: 10.1117/12.976110
Show Author Affiliations
Michael K. Giles, New Mexico State University (United States)
James L. Jernigan, New Mexico State University (United States)
Donald P. Murphy, New Mexico State University (United States)

Published in SPIE Proceedings Vol. 0540:
Southwest Conf on Optics '85
Susanne C. Stotlar, Editor(s)

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