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

Chien Sheng Liu, Yu Ching Chang, Kun Wei Lin, Po Heng Lin

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)16-20
Number of pages5
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number1
Publication statusPublished - 2014 Jan 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition


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