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Optical-phase modulator based on stacked piezoelectric ceramics
Author(s): Tao Chen; Tianxin Ding; Chebin Wu; Zhengxiang Xu; Feiyan Li; Zhongcheng Liang; Rui Zhao; MeiMei Kong
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Paper Abstract

The optical integrated aperture imaging system arranges several small aperture optical elements according to a certain regular spatial position, and achieves common phase precision on the same focal plane by adjusting the optical path and matching the phase. It is 0.1λ precision. As a high-precision displacement adjustment device, stacked piezoelectric ceramics can realize displacement deformation in the micrometer direction in the longitudinal direction. In this paper, a piezoelectric ceramic tube is stacked and filled with a transparent liquid medium. A compact optical phase modulator is designed and the output is prepared. Using interferometer to detect phase and combined with optimized image processing technology, an optical phase detection method with an accuracy of 0.1λ is obtained, which provides a feasible reference scheme for optical synthetic aperture common phase adjustment.

Paper Details

Date Published: 19 November 2019
PDF: 9 pages
Proc. SPIE 11186, Advanced Optical Imaging Technologies II, 111861A (19 November 2019); doi: 10.1117/12.2537666
Show Author Affiliations
Tao Chen, Nanjing Univ. of Posts and Telecommunications (China)
Tianxin Ding, Nanjing Univ. of Posts and Telecommunications (China)
Chebin Wu, Nanjing Univ. of Posts and Telecommunications (China)
Zhengxiang Xu, Nanjing Univ. of Posts and Telecommunications (China)
Feiyan Li, Nanjing Univ. of Posts and Telecommunications (China)
Zhongcheng Liang, Nanjing Univ. of Posts and Telecommunications (China)
Rui Zhao, Nanjing Univ. of Posts and Telecommunications (China)
MeiMei Kong, Nanjing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 11186:
Advanced Optical Imaging Technologies II
Xiao-Cong Yuan; P. Scott Carney; Kebin Shi; Michael G. Somekh, Editor(s)

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