Study of the optimum operating mode in lithium niobate acousto-electro-optic modulator
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1.
College of Physics, Hebei Normal University, Shijiazhuang 050016, China;
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2.
College of Applied Science, Beijing University of Technology, Beijing 100022, China;
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3.
Department of Mathematics and Physics, Hebei Institute of Architecture Civil Engineering, Zhangjiakou 075024, China
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Received Date:
2006-01-20
Accepted Date:
2006-03-18
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Abstract
In order to improve the performance of lithium niobate acousto-electro-optic(AEO) modulator,the acousto-optic operating modes were systematically studied according to tangent condition after the determination of electro-optic operating mode.Acousto-optic merit for sheared ultrasonic wave in x-O-z plane and y-O-z plane were calculated respectively and the optimum operating mode for lithium niobate AEO modulator was determined.Furthermore,the design parameters for central frequency in range of 50MHz～300MHz were also given.By this optimum operating mode,the AEO device can gain a higher acousto-optic merit and achieve a higher diffractive efficiency.
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