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Optical Engineering

Rotatable single wedge plate shearing interference technique for collimation testing
Author(s): Deyan Xu; Klaus-Juergen Rosenbruch
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Paper Abstract

We describe the basic theory and technique of a collimation testing method based on analysis of the lateral shearing interference fringe. The changed fringe spacing and the orientation after rotation of a single wedge plate through 180 deg. indicate the degree of collimation of the light beam. The preliminary experimental equipment is described, precision analyses are presented, and the usefulness for practical applications is demonstrated.

Paper Details

Date Published: 1 April 1991
PDF: 6 pages
Opt. Eng. 30(4) doi: 10.1117/12.55822
Published in: Optical Engineering Volume 30, Issue 4
Show Author Affiliations
Deyan Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Klaus-Juergen Rosenbruch, Physikalisch Technische Bundesanstalt (Germany)

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