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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Lateral patterning of nonlinear frequency conversion with transversely varying quasi-phase-matching gratings

G Imeshev, M Proctor, M M Fejer

    Optics Letters
    |December 19, 2007
    PubMed

    Abstract:

    We demonstrate control of the nonlinear conversion across a beam profile by using periodically poled lithium niobate with a laterally nonuniform quasi-phase-matching grating. As a representative experiment, generation of a flat-top second-harmonic beam is demonstrated.

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