Changes in the electroholographic properties of a paraelectric potassium lithium tantalate niobate crystal by electrostriction

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 2014 English Publisher:Elsevier BVJournal:Optics Communications, volume 331, pages 175-180 (issn: 0030-4018,

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Authors: Qingxin Meng; Xiangda Meng; Huishun Chen; Zhongxiang Zhou;

doi: 10.1016/j.optcom.2014.06.004

Changes in the electroholographic properties of a paraelectric potassium lithium tantalate niobate crystal by electrostriction

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Abstract

We theoretically studied the diffraction properties of an electroholographic (EH) optical switch made from a K0.95Li0.05Ta0.61Nb0.39O3 crystal, assessing the influence of the Kerr effect and electrostriction effect (ES). Specifically, we studied how the diffraction properties changed with temperature, writing-beam angle and polarization angle, when the ES effect is ignoring or accounting for it. We then analyzed the origin of the influence of ES on the diffraction properties. Our results revealed that ES increased the maximum diffraction efficiency and the specific field. We concluded that ES influenced the diffraction properties by decreasing the Bragg mismatch angle and increasing the effective Kerr coefficient.

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Harbin Institute of Technology
China (People's Republic of)

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