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Proceedings Paper

Experimental setup for investigation of laser beam propagation along horizontal urban path
Author(s): Rui Barros; Sarah Keary; Lydia Yatcheva; Italo Toselli; Szymon Gladysz
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Paper Abstract

It is well known that a laser beam propagating through optical atmosphere is affected by atmospheric turbulence. In this paper, we describe an experimental double-passage system for laser beam propagation along a horizontal urban path that can be useful for applications such as free-space laser communications. The setup includes a telescope to focus a laser beam on a retro-reflector, which is located 410 meters away, and the optical-test bench with which we measure intensity and phase fluctuations of the reflected beam. In our measurements scintillation is decreasing with distance from the center of the pupil. This shows the need for further theoretical modelling of double-passage systems.

Paper Details

Date Published: 21 October 2014
PDF: 9 pages
Proc. SPIE 9242, Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII, 92421L (21 October 2014); doi: 10.1117/12.2070694
Show Author Affiliations
Rui Barros, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)
Sarah Keary, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)
Lydia Yatcheva, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)
Italo Toselli, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)
Univ. of Miami (United States)
Szymon Gladysz, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)


Published in SPIE Proceedings Vol. 9242:
Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII
Adolfo Comerón; Karin Stein; John D. Gonglewski; Evgueni I. Kassianov; Klaus Schäfer; Richard H. Picard, Editor(s)

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