Optomechatronic Choppers with Rotating Elements: Design Programs

  • O. Cira
  • V.-F. Duma
Conference paper
Part of the Springer Proceedings in Mathematics & Statistics book series (PROMS, volume 93)


Choppers are most used devices for the modulation of light. We have developed a unitary theory of the optical choppers with rotating wheels working with top-hat laser beams (with constant intensity distribution). A novel type of chopper has been introduced, with windows with non-linear edges. The different modulation functions (of the transmitted light flux) were obtained. From this analysis, design programs are developed and presented in this study to tackle with the diverse cases represented by the chopper configurations and by their constructive and functional parameters. Numerical simulations and modeling are carried out based on the mathematical theory we have previously developed. Rules of thumb result to choose the most appropriate type of device and its characteristic parameters with regard to the particular requirements of a specific application. Top-hat (with constant intensity), Gaussian, and Bessel laser beams are considered in this study.


Optomechatronics Optical devices Choppers Laser beams Top-hat beams Gaussian beams Modulation functions Analysis Optomechatronics Design programs 



The work reported here was made possible by a Grant of the Romanian National Authority for Scientific Research, CNDI–UEFISCDI project PN-II-PT-PCCA-2011-3.2-1682 (


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Aurel Vlaicu University of AradAradRomania

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