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Symmetrical iterative Fourier-transform algorithm using both phase and amplitude freedom for the design of diffractive beam shaping elements

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3 Author(s)
Jinsong Liu ; Sch. of Eng. & Phys. Sci., Heriot-Watt Univ., Edinburgh ; Thomson, M.J. ; Taghizadeh, M.R.

In this paper, we present a symmetrical iterative Fourier transform algorithm (IFTA) using both the phase and amplitude freedom (SIFTA_(p+a)) for the design of diffractive beam shaping elements. This algorithm is compared to the GSA, IFTA_(p+a), and SIFTA_(p), which is symmetrical IFTA exclusively using phase freedom. We compare these four methods by employing them to a number of flat-top super-Gaussian (SG) beam shaping problems. In this paper the modified Fourier-domain constraint is decided automatically by iteration

Published in:

Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on

Date of Conference:

17-17 June 2005