ELECTROOPTICAL EFFECT ELEMENT USING SINGLE CRYSTAL OF LEAD ZINC NIOBATE - LEAD TITANATE MIXED CRYSTAL FERROELECTRIC MATERIAL AND OPTICAL SWITCH USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an electrooptical effect element using single crystal of lead zinc niobate - lead titanate mixed crystal ferroelectric material and an optical switch using the same which allows the low-voltage drive of a light deflecting element using electrooptical effect without deteriorating light propagation characteristics.

SOLUTION: This electrooptical effect element has an optical wave guide structure of which at least one side clad layer 1 consists of Pb ä(Zn1-uNbu)1-vTiv}wO3and core layer 2 consists of Pbä(Mg1-xNbx)1-yTiy}zO3.

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