Abstract
We experimentally demonstrate the spectral shaping of a signal generated by a three-wave mixing process using a nonlinear spectral hologram. These holograms are based on binary spatial modulation of the second-order nonlinear coefficient. Here we present the first experimental realization, to the best of our knowledge, of this concept, encoding a nonlinear hologram in a crystal by electric field poling. Two different spectra in the form of the second-order Hermite–Gauss function and the Airy function are shown using the sum-frequency generation process.
© 2014 Optical Society of America
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