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Optical Engineering • Open Access

Absolute interferometric test of cylindrical wavefront with a fiber optic

Paper Abstract

A method of absolute testing of a cylindrical wavefront is presented. The method is a merging of the random ball test method with the fiber optic reference test. The random ball test assumes a large number of interferograms of a good quality sphere with errors that are statistically distributed such that the average of the errors goes to zero. The fiber optic reference test utilizes a specially processed optical fiber to provide a high quality reference wave from an incident line focus from the cylindrical wave under test. A simulation and preliminary experiment results are presented which indicate that this method can significantly reduce the effects of fiber surface errors, yielding more accurate cylindrical wave measurements.

Paper Details

Date Published: 14 November 2014
PDF: 6 pages
Opt. Eng. 53(11) 114104 doi: 10.1117/1.OE.53.11.114104
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Ayshah Alatawi, The Univ. of Alabama in Huntsville (United States)
Patrick J. Reardon, The Univ. of Alabama in Huntsville (United States)


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