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Proceedings Paper

Experimental observation of electric-field poling in femtosecond laser carved LiNbO3 crystal
Author(s): Ying Wang; Zhigang Zhang; Xiaochang Ni; Jian Yu; Mei Sang; Lei Ji; Qingyue Wang
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Paper Abstract

We report a preliminary experiment result of poling in a femtosecond-laser-treated LiNbO3 (LN) crystal. Because of the precision of the femtosecond laser machine, we can control the width and depth of snicks exactly. Then the high-voltage electric field was operated on +z side of the LN crystal. The visible poling pattern was observed by a microscope and machining parameter influences the electric field distribution in the crystal. This approach does not need expensive masks and the periods of PPLN can be adjusted flexibly. Although the mechanism of core formation is not very clear yet, we believe that it would provide a novel technique of making prototype PPLN and other periodically poled crystals.

Paper Details

Date Published: 10 June 2006
PDF: 5 pages
Proc. SPIE 6344, Advanced Laser Technologies 2005, 63440C (10 June 2006); doi: 10.1117/12.693431
Show Author Affiliations
Ying Wang, Tianjin Univ. (China)
Zhigang Zhang, Tianjin Univ. (China)
Peking Univ. (China)
Xiaochang Ni, Tianjin Univ. (China)
Jian Yu, Tianjin Univ. (China)
Mei Sang, Tianjin Univ. (China)
Lei Ji, Tianjin Univ. (China)
Qingyue Wang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 6344:
Advanced Laser Technologies 2005
Ivan A. Shcherbakov; Kexin Xu; Qingyue Wang; Alexander V. Priezzhev; Vladimir I. Pustovoy, Editor(s)

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