Abstract
We take a unified approach to the problem of an optical decomposition of coherent light fields in terms of orthogonal bases with rotor or angular harmonics. Examples of such bases are given: functions describing diffraction-free beam (Bessel functions), circular Zernike polynomials and modal Gauss–Laguerre functions. We consider an iterative algorithm for the design of phase diffractive optical elements serving to decompose the coherent light field in terms of the mentioned bases. The results of computer simulation are discussed.
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