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Applied Optics

Applied Optics


  • Vol. 34, Iss. 7 — Mar. 1, 1995
  • pp: 1197–1202

Multiple-beam wedge-plate shear interferometer for collimation testing

P. Senthilkumaran, K. V. Sriram, M. P. Kothiyal, and R. S. Sirohi  »View Author Affiliations

Applied Optics, Vol. 34, Issue 7, pp. 1197-1202 (1995)

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We describe a modification of the wedge-plate shear interferometer for collimation testing. The surface of the wedge plate is coated to increase the reflectivity such that multiple-beam interference takes place resulting in sharp fringes. In addition to sharpening the fringes also tend to split when the test beam is noncollimated. This splitting has been used as a test criterion for collimation testing. Experimental results are presented.

© 1995 Optical Society of America

Original Manuscript: October 14, 1993
Revised Manuscript: March 3, 1994
Published: March 1, 1995

P. Senthilkumaran, K. V. Sriram, M. P. Kothiyal, and R. S. Sirohi, "Multiple-beam wedge-plate shear interferometer for collimation testing," Appl. Opt. 34, 1197-1202 (1995)

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