Loading...

Theoretical modeling of generation of hat-top intensity profile from Gaussian beam by means of a two-stage beam shaper

Haghighatzadeh, A ; Sharif University of Technology | 2013

919 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.optcom.2012.12.058
  3. Publisher: 2013
  4. Abstract:
  5. Both theoretical and experimental results of an optical beam shaping system are investigated in this report. The described system is a two-stage beam shaping device including a fiber-bundle and a prism-duct. A source light is used to illuminate the fiber-bundle and the image of output beam is captured by a CCD camera. The fiber-bundle output beam shape shows a linear arrangement of circular spots lights, which are placed in a rectangular cross section of about 21.37 mm×2.44 mm. In another study, the photograph picture of the prism output beam is taken by a digital camera. The prism output beam cross section is a square shape with a dimension of about 4×4 mm2. According to the experimental results, the prism duct converted a Gaussian beam profile with multiple-peak distribution to a hat-top beam profile with the uniform intensity distribution. For theoretical investigations, using ZEMAX software a simulation is performed to analyze the beam shaping design. By proper modeling the output beam shape and radiance profiles in position space and angle space of the fiber-bundle and the prism duct are investigated. Theoretical radiance profiles are obtained by using simulated images and results are in agreement with the experimental results
  6. Keywords:
  7. Fiber-bundle ; Theoretical and experimental ; Gaussian beam ; Hat-top beam ; Prism duct ; Beam-shaping ; Fiber bundles ; Gaussian beam profile ; Hat-top beam ; Rectangular cross-sections ; Beam shaping optics ; Theoretical investigations ; Theoretical modeling ; Computer software ; Fibers ; Gaussian beams ; Light ; Photography ; Prisms ; Ducts
  8. Source: Optics Communications ; Volume 294 , 2013 , Pages 182-187 ; 00304018 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0030401812015106