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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 27, Iss. 3 — Feb. 1, 1988
  • pp: 557–562

Laser speckles produced by a diffuse object under illumination from a multimode optical fiber: an experimental study

Nobukatsu Takai and Toshimitsu Asakura  »View Author Affiliations


Applied Optics, Vol. 27, Issue 3, pp. 557-562 (1988)
http://dx.doi.org/10.1364/AO.27.000557


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Abstract

The size and displacement of speckles produced by a diffuse object under illumination from a multimode optical fiber are investigated experimentally to confirm the theory presented in a previous paper [ J. Opt. Soc. Am. A 2, 1282 ( 1985)]. The experimental results show good agreement with the theory. It is verified that the mean size of speckles at the exit face of the fiber can be determined from measurements of the mean size of speckles at the observation plane. Furthermore, it is particularly emphasized that the speckle displacement is given by a relation, which is simpler than the conventional method where a Gaussian laser beam is used for the illumination.

© 1988 Optical Society of America

History
Original Manuscript: August 4, 1987
Published: February 1, 1988

Citation
Nobukatsu Takai and Toshimitsu Asakura, "Laser speckles produced by a diffuse object under illumination from a multimode optical fiber: an experimental study," Appl. Opt. 27, 557-562 (1988)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-27-3-557


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References

  1. N. Takai, T. Asakura, “Statistical Properties of Laser Speckles Produced Under Illumination from a Multimode Optical Fiber,” J. Opt. Soc. Am. A 2, 1282 (1985). [CrossRef]
  2. S. Ueha, N. Shibata, J. Tsujiuchi, “Flexible Coherent Optical Probe for Vibration Measurements,” Opt. Commun. 23, 407 (1977). [CrossRef]
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  11. K. J. Ebeling, “Experimental Investigation of Some Statistical Properties of Monochromatic Speckle Patterns,” Opt. Acta 26, 1345 (1979). [CrossRef]
  12. T. Asakura, N. Takai, “Dynamic Laser Speckles and Their Applications to Velocity Measurements of the Diffuse Object,” Appl. Phys. 25, 179 (1981). [CrossRef]

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