21 August 2009 Intra-cavity flat-top beam generation
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Abstract
In this paper we present the analytical and numerical analyses of two new resonator systems for generating flat-top-like beams. Both approaches lead to closed form expressions for the required cavity optics, but differ substantially in the design technique, with the first based on reverse propagation of a flattened Gaussian beam, and the second a metamorphosis of a Gaussian field into a flat-top beam. We show that both have good convergence properties, and result in the desired stable mode.
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Igor A. Litvin, Andrew Forbes, "Intra-cavity flat-top beam generation", Proc. SPIE 7430, Laser Beam Shaping X, 74300M (21 August 2009); doi: 10.1117/12.827958; https://doi.org/10.1117/12.827958
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