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Proceedings Paper

Testing pulse laser wavefront radius of curvature using large shearing interference with four plates
Author(s): Shuqin Chen
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Paper Abstract

A novel Large Shearing Interferometer with four-plate that can adjust shearing distance freely and work in equal optical path is presented. It is used in measuring the pulse laser (from ns to ps) wavefront radius of curvature particularly. The interferometer overcome not the only shortcomings in single and double-plate shearing interferometer, but the diameter of optical plate for the interferometer is only one half or smaller than the beam splitter in three-plate cyclic shearing interferometer. Experiment results indicate that measurement error is smaller than plus or minus 5%(R: 30 to approximately 1000 meters). It also can be used in measuring the focal length and wavefront aberrations of optics.

Paper Details

Date Published: 11 November 1999
PDF: 6 pages
Proc. SPIE 3782, Optical Manufacturing and Testing III, (11 November 1999); doi: 10.1117/12.369206
Show Author Affiliations
Shuqin Chen, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 3782:
Optical Manufacturing and Testing III
H. Philip Stahl, Editor(s)

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