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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 4: 851 - 854

DOI: https://doi.org/10.3724/SP.J.1077.2008.00851

Research Paper

Technology of Periodic Poling Bulk LiNbO3 by Applying External Field

  • CHEN Jian-Hua ,
  • QU Shao-Bo ,
  • WEI Xiao-Yong ,
  • XU Zhuo ,
  • ZHU Lin-Hu
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  • (1. The Engineering College, Airforce Engineering University, Xi’an 710038, China; 2. Electronic Materials Research Laboratory, Key Laboratory of Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China; 3. The Science College, Airforce Engineering University, Xi’an 710051, China)

Received date: 2007-08-30

  Revised date: 2007-12-23

  Online published: 2008-07-20

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Abstract

The preparation technics of periodically poled LiNbO3 crystal (PPLN) was studied and the effects of external field characteristics including magnitude, duration of voltage pulse on periodic poling process were investigated. Improving magnitude of pulse could accelerate the poling process. After a detailed study of all technological steps, a resolution to overvcoming fringe breakdown is proposed, i.e. appropriate electrode figure and optimum waveform must be selected. By using the technics proposed, ratio of finished product reaches 90%. To eliminate the negative effects of reverse domain side expansion, a thin insulator layer is coated on the samples and the electrode width is optimized. By this method, high-quality periodically poled LiNbO3, which meets the expected occupation ratio perfectly, is prepared successfully.

Key words： periodically poled LiNbO3; dielectric breakdown; domain broadening

Cite this article

CHEN Jian-Hua , QU Shao-Bo , WEI Xiao-Yong , XU Zhuo , ZHU Lin-Hu . Technology of Periodic Poling Bulk LiNbO3 by Applying External Field[J]. Journal of Inorganic Materials, 2008 , 23(4) : 851 -854 . DOI: 10.3724/SP.J.1077.2008.00851

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