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Proceedings Paper

A large-angle high speed scanner based on electro-optic crystal for Fresnel telescope synthetic aperture imaging ladar
Author(s): Jun Xu; Ya'nan Zhi; Xuping Wang; Jianfeng Sun; Yu Zhou; Enwen Dai; Liren Liu
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Paper Abstract

The cross-orbit scanning is very important for Fresnel telescope synthetic aperture imaging ladar system. This paper presents a design of large-angle high speed scanner based on electro-optic crystal for the cross-orbit scanning in Fresnel telescope synthetic aperture imaging ladar system. The designed scanner is based on the space-charge-controlled EO effect in KTN. In the experiment the crystal temperature should be kept a little higher above Tc to obtain a large EO effect and the polarization of the laser beam should be parallel to the direction of the driving electric field. Compared with other conventional EO crystal scanner, the new scanner can greatly improve the scanner angle by several times when maintains high speed and accuracy, which will have a great potential for cross-orbit scanning applications in Fresnel telescope synthetic aperture imaging ladar system.

Paper Details

Date Published: 15 October 2012
PDF: 7 pages
Proc. SPIE 8520, Unconventional Imaging and Wavefront Sensing 2012, 85200V (15 October 2012); doi: 10.1117/12.928398
Show Author Affiliations
Jun Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Ya'nan Zhi, Shanghai Institute of Optics and Fine Mechanics (China)
Xuping Wang, Shandong Academy of Sciences (China)
Jianfeng Sun, New Material Institute, Shanghai Institute of Optics and Fine Mechanics (China)
Yu Zhou, New Material Institute, Shanghai Institute of Optics and Fine Mechanics (China)
Enwen Dai, New Material Institute, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, New Material Institute, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8520:
Unconventional Imaging and Wavefront Sensing 2012
Jean J. Dolne; Thomas J. Karr; Victor L. Gamiz, Editor(s)

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