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J Opt Soc Am A Opt Image Sci Vis. 2008 Jul;25(7):1642-51.

Generation of high-quality higher-order Laguerre-Gaussian beams using liquid-crystal-on-silicon spatial light modulators.

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Central Research Laboratory, Hamamatsu Photonics K.K., Hirakuchi, Hamamatsu City, Japan.


We report on the high-quality holographic generation of higher-order Laguerre-Gaussian (LG) beams using a liquid-crystal-on-silicon spatial light modulator. The effects of the input beam pattern on the output LG beam quality are investigated in detail through theoretical discussions and experiments. Correlation analyses between observed beam patterns and theoretical mode profiles reveal that higher beam quality is achieved for output LG beams generated from a top-hat input beam than from a Gaussian input beam.

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