Abstract
The basic quadratic electro-optic properties of (PMN-PT) transparent ceramics have been studied under both DC and AC electric field bias. The contribution of piezoelectric resonance to electro-optic effect for this quadratic electro-optic ceramics material has been experimentally demonstrated and theoretically analyzed. It is found that, at the piezoelectric resonance frequencies, the piezoelectric induced electro-optic effect dominates and leads to a dramatically high sensitivity for weak electric signal detection. About 20 dB signal-to-noise ratio is attained when detecting AC electric field strength of with optimized DC bias. Besides, the effects of AC frequency and amplitude on halfwave voltage of PMN-PT are investigated.
©2012 Optical Society of America
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