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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 30, Iss. 22 — Aug. 1, 1991
  • pp: 3139–3144

Two-wavelength double heterodyne interferometry using a matched grating technique

Zoran Sodnik, Edgar Fischer, Thomas Ittner, and Hans J. Tiziani  »View Author Affiliations


Applied Optics, Vol. 30, Issue 22, pp. 3139-3144 (1991)
http://dx.doi.org/10.1364/AO.30.003139


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Abstract

Two-wavelength double heterodyne interferometry is applied for topographic measurements on optically rough target surfaces. A two-wavelength He–Ne laser and a matched grating technique are used to improve system stability and to simplify heterodyne frequency generation.

© 1991 Optical Society of America

History
Original Manuscript: April 23, 1990
Published: August 1, 1991

Citation
Zoran Sodnik, Edgar Fischer, Thomas Ittner, and Hans J. Tiziani, "Two-wavelength double heterodyne interferometry using a matched grating technique," Appl. Opt. 30, 3139-3144 (1991)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-30-22-3139

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