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Applied Optics

Applied Optics


  • Vol. 22, Iss. 14 — Jul. 15, 1983
  • pp: 2141–2151

Measuring laser flow fields with a 64-channel heterodyne interferometer

N. A. Massie, M. Dunn, D. Swain, S. Muenter, and J. Morris  »View Author Affiliations

Applied Optics, Vol. 22, Issue 14, pp. 2141-2151 (1983)

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The digital heterodyne interferometer has been equipped to simultaneously measure and record phase at 64 discrete locations on a single beam. The measurements are obtained at 10-μsec time intervals and have a resolution in phase of 1/500 of a wave rms and a full scale accuracy of 1/100 of a wave rms. Associated with each phase detector is a dedicated data recording system 16 bits wide and 4096 words deep. Additionally, the system records simultaneously the rigid body motions of the interferometer optics, allowing the post priori removal of the corrupting motions of the interferometer optics. This instrument was used to obtain measurements of the optical quality of the media of a transverse-flow electron beam-pumped laser simulator.

© 1983 Optical Society of America

Original Manuscript: January 14, 1983
Published: July 15, 1983

N. A. Massie, M. Dunn, D. Swain, S. Muenter, and J. Morris, "Measuring laser flow fields with a 64-channel heterodyne interferometer," Appl. Opt. 22, 2141-2151 (1983)

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  1. N. A. Massie, J. Hartlove, D. Jungwirth, J. Morris, Appl. Opt. 20, 2372 (1981). [CrossRef] [PubMed]
  2. N. A. Massie, Appl. Opt. 19, 154 (1980). [CrossRef] [PubMed]
  3. N. A. Massie, R. D. Nelson, S. Holly, Appl. Opt. 18, 1797 (1979). [CrossRef] [PubMed]
  4. N. A. Massie, J. S. Hartlove, Proc. Soc. Photo-Opt. Instrum. Eng. 179, 98 (1979).
  5. N. A. Massie, “Heterodyne Interferometry,” in Optical Interferograms—Reduction and Interpretation, A. H. Guenter, D. H. Liebenbert, Eds., ASTM STP 666 (American Society for Testing and Materials, Philadelphia, 1978). [CrossRef]
  6. F. M. Gardner, Phase Lock Techniques (Wiley, New York, 1979).

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