25 October 2000 Nearly diffraction-limited size flat-top laser beam shaper
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Abstract
A diffractive optical element (DOE) is designed with a new algorithm for transforming a rotationally symmetrical Gaussian beam into a nearly diffraction-limited flat-top by Fourier transformation system. The simulating results indicate that size of the shaped spot is only twice more than one of the diffraction limited spot, the diffraction efficiency is about 71.38$ and the edge of the uniform area is dramatically sharper than the one without DOE.
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Fengyou Li, Fengyou Li, Zhenwu Lu, Zhenwu Lu, Hongjun Li, Hongjun Li, Jianghong Liao, Jianghong Liao, } "Nearly diffraction-limited size flat-top laser beam shaper", Proc. SPIE 4095, Laser Beam Shaping, (25 October 2000); doi: 10.1117/12.405263; https://doi.org/10.1117/12.405263
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