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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 31, Iss. 1 — Jan. 1, 2014
  • pp: 16–20

Speckle reduction in laser imaging applications using rotating magneto-optical disk

Chien-Sheng Liu, Yu-Ching Chang, Kun-Wei Lin, and Po-Heng Lin  »View Author Affiliations

JOSA A, Vol. 31, Issue 1, pp. 16-20 (2014)

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Effective methods for speckle reduction are essential in improving the image quality of laser imaging applications. Accordingly, the present study proposes a novel technique for reducing the speckle contrast in laser imaging applications by means of the magneto-optic Kerr effect induced by a rotating magneto-optical (MO) disk. The performance of the proposed method is evaluated experimentally using a laboratory-built prototype model. The experimental results show that the rotating MO disk can reduce the speckle contrast of the captured image by 60% of the previous value. As a result, the proposed method yields an effective improvement in image quality. Overall, the proposed method provides a promising solution for improving the performance of a wide range of laser imaging applications.

© 2013 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.6150) Imaging systems : Speckle imaging
(120.2040) Instrumentation, measurement, and metrology : Displays
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Imaging Systems

Original Manuscript: September 19, 2013
Revised Manuscript: October 23, 2013
Manuscript Accepted: November 10, 2013
Published: December 2, 2013

Chien-Sheng Liu, Yu-Ching Chang, Kun-Wei Lin, and Po-Heng Lin, "Speckle reduction in laser imaging applications using rotating magneto-optical disk," J. Opt. Soc. Am. A 31, 16-20 (2014)

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