In this paper, a fireworks algorithm based Gerchberg-Saxton (gs) algorithm for the design of diffractive optical element is developed, named fw-gs algorithm, in which, the explosion mechanism of the fireworks algorith...
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In this paper, a fireworks algorithm based Gerchberg-Saxton (gs) algorithm for the design of diffractive optical element is developed, named fw-gs algorithm, in which, the explosion mechanism of the fireworks algorithm is introduced to efficiently find the initial phase, thereby ensuring a superior phase solution for the subsequent gsalgorithm. By employing this approach to shape a Gaussian beam into a square beam, the results illustrated the notable improvement of 16.10 % in RMSE and 3.29 % in diffractive efficiency when compared to the traditional gsalgorithm, while exhibiting stable optimization performance. Furthermore, the proposed algorithm demonstrated adaptability to various shaping targets, with RMSE improved by about 16 % and diffractive efficiency improved by more than 3 % for shaping to circular, annular, and rectangular beams.
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