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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 11 — Apr. 10, 2008
  • pp: 1740–1744

Theory and optimization of hollow ducts

Marc Eichhorn  »View Author Affiliations

Applied Optics, Vol. 47, Issue 11, pp. 1740-1744 (2008)

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Hollow ducts compressing and homogenizing the emission of laser diode arrays are cheap, low weight alternatives to lens ducts. An analytic model is presented describing hollow ducts including internal reflection losses, which is useful in optimizing these devices, especially in determining the optimum length for maximum transmission efficiency. As an example, a gold coated duct is presented showing high transmission efficiencies of > 90 % comparable to lens ducts.

© 2008 Optical Society of America

OCIS Codes
(140.5560) Lasers and laser optics : Pumping
(230.4040) Optical devices : Mirrors
(260.3910) Physical optics : Metal optics

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 4, 2008
Manuscript Accepted: January 28, 2008
Published: April 4, 2008

Marc Eichhorn, "Theory and optimization of hollow ducts," Appl. Opt. 47, 1740-1744 (2008)

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  1. R. J. Beach and W. J. Benett, “Lensing duct,” U.S. patent 5,307,430 (26 April 1994).
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  4. S. A. Payne, R. J. Beach, S. Mitchell, E. C. Honea, C. Bibeau, J. Lang, D. Maderas, and J. Speth, “Hollow lensing duct,” U.S. patent 6,160,934 (12 December 2000).
  5. “zemax optical design program,” ZEMAX Development Corporation, www.zemax.com.

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