Strontium Barium Niobate Crystal (SrxBa1-xNb2O6 or SBN) is known as an excellent optical and photorefractive material. It has high electro-optical coefficients, fast response time, high two-wave mixing gain. Different compositions: SBN:60; SBN:75; different dopants: Ce, Cr, Co; various dopant levels; striation and scatter free; custom fabrication. The introduction of small amounts of certain transition or rare-earth elements into SBN are used to modify the photorefractive characteristics of the crystal. Two compositions of crystal Strontium Barium Niobate (SrxBa1-xNb2O6 or SBN) solid-solution are the most attractive for applications: SBN:60 is a congruently melting composition; SBN:75 has the highest electro-optical coefficients.