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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 23 — Aug. 10, 2013
  • pp: 5619–5630

Analytical approach of laser beam propagation in the hollow polygonal light pipe

Guangzhi Zhu, Xiao Zhu, and Changhong Zhu  »View Author Affiliations

Applied Optics, Vol. 52, Issue 23, pp. 5619-5630 (2013)

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An analytical method of researching the light distribution properties on the output end of a hollow n-sided polygonal light pipe and a light source with a Gaussian distribution is developed. The mirror transformation matrices and a special algorithm of removing void virtual images are created to acquire the location and direction vector of each effective virtual image on the entrance plane. The analytical method is demonstrated by Monte Carlo ray tracing. At the same time, four typical cases are discussed. The analytical results indicate that the uniformity of light distribution varies with the structural and optical parameters of the hollow n-sided polygonal light pipe and light source with a Gaussian distribution. The analytical approach will be useful to design and choose the hollow n-sided polygonal light pipe, especially for high-power laser beam homogenization techniques.

© 2013 Optical Society of America

OCIS Codes
(030.5620) Coherence and statistical optics : Radiative transfer
(140.3300) Lasers and laser optics : Laser beam shaping
(080.3685) Geometric optics : Lightpipes
(080.4295) Geometric optics : Nonimaging optical systems

ToC Category:
Coherence and Statistical Optics

Original Manuscript: May 29, 2013
Revised Manuscript: July 14, 2013
Manuscript Accepted: July 14, 2013
Published: August 5, 2013

Guangzhi Zhu, Xiao Zhu, and Changhong Zhu, "Analytical approach of laser beam propagation in the hollow polygonal light pipe," Appl. Opt. 52, 5619-5630 (2013)

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