Photorefractive (PR) nonlinear optical single domain crystals are widely investigated for all-
optical signal processing. 1, 2 KNbO 3 possesses high electro-optic coefficients, very high …

Photorefractive (PR) nonlinear optical single domain crystals are widely investigated for all-
optical signal processing. 1 KNbO 3 possesses high electro-optic coefficients, very high …

Photorefractive (PR) crystals are widely investigated materials for all-optical signal
processing. 1 Fe-doped KNBO 3, because of its high electro-optic coefficients 2 and good …

We report what is to our knowledge the first observation and characterization of the
photorefractive effect in ion-implanted KNbO_3 waveguides. The implantation was …

Photorefractive crystals such as KnbO 3, BaTiO 3, and Sr 1-x Ba x Nb 2 O 6 are very
promising for all-optical signal processing. Attention has been drawn to the extension of the …

We report on photorefractive two-beam coupling in proton-implanted Fe-doped KNbO_3
waveguides at wavelengths from 632.8 to 1550 nm. Exponential gain coefficients of 11 and …

Photorefractive planar waveguides have been fabricated in cerium-doped strontium barium
niobate (SrxBa_1− xNb_2O_6, SBN) single crystals by ion-beam implantation. The losses …

Photorefractive crystals such as KNb03> BaTi03, LiNb03 and Sr,. xBaxNb206 (SBN) are
very promising for all-optical signal processing. Unfortunately most photorefractive crystals …

The nonlinear response of photorefractive crystals at wavelengths around 1.3 and 1.5 µm is
of importance for applications in all-optical telecommunication systems. However, in general …

We report on the two-wave mixing of light in photorefractive waveguides in H ion-implanted
Fe-doped near-stoichiometric lithium niobate crystals. For pump light of 632.8 nm …