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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 17007–17019

Propagation of partially coherent light through a light pipe

Stijn Roelandt, Jani Tervo, Youri Meuret, Guy Verschaffelt, and Hugo Thienpont  »View Author Affiliations

Optics Express, Vol. 21, Issue 14, pp. 17007-17019 (2013)

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In laser projection applications, laser light modules are often combined with rotating diffusers in order to reduce the appearance of speckle on the projection screen. The rotation of a diffuser in a laser beam generates a beam of partially coherent light. Propagation of this light through the different optical components constituting the laser projector is thus essential when investigating the appearance of speckle. In this paper, a computationally efficient simulation model is presented to propagate partially coherent light through a homogenizing rectangular light pipe. The light pipe alters the coherence properties of the light and different consequences are discussed. The outcomes of the simulation model are experimentally verified using a reversing wavefront Michelson interferometer.

© 2013 OSA

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.4980) Imaging systems : Partial coherence in imaging
(110.3175) Imaging systems : Interferometric imaging

ToC Category:
Coherence and Statistical Optics

Original Manuscript: March 6, 2013
Revised Manuscript: May 15, 2013
Manuscript Accepted: May 25, 2013
Published: July 10, 2013

Stijn Roelandt, Jani Tervo, Youri Meuret, Guy Verschaffelt, and Hugo Thienpont, "Propagation of partially coherent light through a light pipe," Opt. Express 21, 17007-17019 (2013)

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