We show that photorefractive materials having large electro-optic coefficients such as
BaTiO3 require relatively small electric field to induce sufficient phase mismatch for the …

We demonstrate experimentally fast switching of the diffracted output from an orthogonally
polarized pump (OPP) four-wave mixing (FWM) in a BaTiO3 crystal. The switching …

We present theory and experiments to show that the efficiency of four-wave mixing in
photorefractive materials can be enhanced by use of optical waves of slightly different …

We obtain analytical solution to the slowly varying envelope wave equations describing two-
wave mixing in photorefractive crystals with arbitrary dependence of the gain and absorption …

Propagation angle sensitivity of two-wave mixing is observed in a photorefractive BaTiO,
waveguide having a periodically reversed c-axis. The periodic reversal of the c-axis is …

In general, the application of an electric field to a photorefractive material with optical activity
results in a change in the effective electro-optic coefficient, r eff, which, in turn, alters the …

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By applying pulsed electric fields to photorefractive crystals, the two-wave mixing gain is
considerably increased. Unlike other enhancement techniques, the maximum gain is not …

A novel method for the exact solution of four-wave mixing in photorefractive media is
presented. This method allows us to treat exactly the effects of nonequal angles of …

We demonstrate that the negative amplitude gain in a photorefractive two-wave-mixing
experiment under applied electric field measurably reduces the characteristic instability of …