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Improvement of lanthanum doped lead zirconate/lead titanate ceramics (PLZT) switching voltage and permittivity properties is described. Niobates with tungsten bronze structure and PLZT thin films were prepared and tested. Using lanthanum doped barium niobate titanate materials, ceramic plates with a transparency of 50% were prepared by a two step sintering process. Permittivity (E) is 600 at 10 kHz, contrast ratio is 1:250 at a switching voltage of 450 V. Due to the lower E value compared to PLZT, this material has lower switching time. By RF-sputtering, PLZT thin films (thickness = 4 to 8 microns) with controlled chemical composition, perovskite structure, and a grain size of 1.5 micron diameter were prepared. Saturation polarization of 60 micro C/sqcm is three times higher than that of bulk material PLZT 8.5/68/32. Permittivity is 650. An electro-optic effect was demonstrated.