Abstract
The temperature dependence of the electrooptic properties of tetragonal lead barium niobate crystals of compositions (Pb x Ba 1− x Nb 2O 6 where x=0.50 and 0.57, i.e., PBN50 and PBN57) was measured. For comparison studies, similar measurements were performed on 0.01 mol% cerium-doped Sr 0.61Ba 0.39Nb 2O 6 (SBN61) single crystals (i.e., SBN61:Ce). Temperature dependences of the piezoelectric d coefficients for SBN61 were measured independently by resonance technique. Both PBN57 and PBN50 have electrooptic (EO) r 13and r 33 coefficients that are large and are nearly temperature independent compared to the relatively temperature dependent coefficients found in the case of SBN61:Ce.
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