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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 9 — May. 6, 2013
  • pp: 11171–11180

A novel design method for continuous-phase plate

Chunlin Yang, Hao Yan, Jian Wang, and Rongzhu Zhang  »View Author Affiliations

Optics Express, Vol. 21, Issue 9, pp. 11171-11180 (2013)

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A continuous-phase plate (CPP) is a key element for beam smoothing in a high-power laser system. For the beam-smoothing effect, the surface shape of a CPP is one of the most important facts. In this paper, the change law of the transmission direction of light rays has been analyzed according to the geometrical optical principle. It is discovered that the 2-dimensional histogram of a surface gradient can be used to show the far-field distribution of a CPP. Drawing on the experience of histogram modification technology in digital image processing, a novel method is proposed to design a CPP. The design steps of a 1-dimensional CPP are introduced in detail. The far-field distribution and spatial frequency spectrum of this CPP are calculated. The results show that this method is efficient and can reflect the relationship between the surface figure and the far-field distribution of a CPP directly.

© 2013 OSA

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(220.2740) Optical design and fabrication : Geometric optical design
(350.6980) Other areas of optics : Transforms

ToC Category:
Optical Design and Fabrication

Original Manuscript: February 4, 2013
Revised Manuscript: March 29, 2013
Manuscript Accepted: April 1, 2013
Published: April 30, 2013

Chunlin Yang, Hao Yan, Jian Wang, and Rongzhu Zhang, "A novel design method for continuous-phase plate," Opt. Express 21, 11171-11180 (2013)

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