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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 34, Iss. 31 — Nov. 1, 1995
  • pp: 7197–7201

Improvement of speckle statistics in double-wavelength superheterodyne interferometry

R. Dändliker, M. Geiser, C. Giunti, S. Zatti, and G. Margheri  »View Author Affiliations


Applied Optics, Vol. 34, Issue 31, pp. 7197-7201 (1995)
http://dx.doi.org/10.1364/AO.34.007197


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Abstract

In this paper we analyze the probability density function of the superheterodyne signal obtained in a two-wavelength interferometer from the beat of a local oscillator laser beam with a speckled return beam from a rough target. Theoretical investigation shows that, by using an increased number of spatially separated detectors, one can improve noticeably the detection probability of the superheterodyne signal. Experimental results obtained with a four-quadrant detector are in good agreement with theory.

© 1995 Optical Society of America

History
Original Manuscript: October 31, 1994
Revised Manuscript: April 18, 1995
Published: November 1, 1995

Citation
R. Dändliker, M. Geiser, C. Giunti, S. Zatti, and G. Margheri, "Improvement of speckle statistics in double-wavelength superheterodyne interferometry," Appl. Opt. 34, 7197-7201 (1995)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-34-31-7197


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References

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