Modeling of holographic gratings in gradedindex photorefractive planar waveguides.
A numerical model is presented for the evaluation of the dielectric permittivity tensor changes as induced by guided modes during the formation of holographic gratings in arbitrary photorefractive graded-index planar waveguides. Comparisons among lithium niobate waveguides with different cuts and technology are shown.
Passaro
Vittorio
V
Marseglia
Daniele
D