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Applied Optics

Applied Optics


  • Vol. 22, Iss. 10 — May. 15, 1983
  • pp: 1530–1534

Complex interferometry

Lawrence Mertz  »View Author Affiliations

Applied Optics, Vol. 22, Issue 10, pp. 1530-1534 (1983)

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An efficient device using a transparent grooved screen and three detector channels is described for measuring the complex coherence factor between two optical beams. The device statically provides both in-phase and quadrature fringe components, the same signals as are customarily available in radio interferometry. The deleterious effects of a nonaplanatism in stellar interferometry are described along with a novel configuration for interferometrically combining two telescopes to provide simultaneously fringes anywhere in the field of view with the goal of optical aperture synthesis. Complex fringe detection also has certain applications in spectral interferometry, and a suitable interferometer with achromatized throughput is described. That interferometer may also be used for distance or thickness measurement.

© 1983 Optical Society of America

Original Manuscript: December 3, 1982
Published: May 15, 1983

Lawrence Mertz, "Complex interferometry," Appl. Opt. 22, 1530-1534 (1983)

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