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Proceedings Paper

Laboratory demonstration of Fresnel telescope imaging ladar
Author(s): Enwen Dai; Liren Liu; Jianfeng Sun; Yapeng Wu; Yu Zhou; Aimin Yan; Yanan Zhi
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Paper Abstract

In this paper, we present a laboratory demonstration of Fresnel telescope imaging ladar system for imaging the faraway objects with high resolution. Two concentric and coaxial quadratic wavefront with orthogonal polarization are used as scanning beams to illuminate the target. The scattered light from the target is heterodyne detected by a 90 degree 2×4 optical hybrid with two balanced receivers. The target image can be reconstructed by digital processing of the output signals of the balanced receivers. Point targets 4.3m away are reconstructed with high resolution in experiments.

Paper Details

Date Published: 14 September 2011
PDF: 7 pages
Proc. SPIE 8165, Unconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems, 816510 (14 September 2011); doi: 10.1117/12.892446
Show Author Affiliations
Enwen Dai, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Yapeng Wu, Shanghai Institute of Optics and Fine Mechanics (China)
Yu Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Aimin Yan, Shanghai Institute of Optics and Fine Mechanics (China)
Yanan Zhi, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8165:
Unconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems
Stanley Rogers; Jean J. Dolne; David P. Casasent; Thomas J. Karr; Victor L. Gamiz, Editor(s)

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