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Proceedings Paper

Emulation of optical effects of atmospheric turbulence using two liquid-crystal spatial light modulators
Author(s): Jason D. Schmidt; Matthew E. Goda; Bradley D. Duncan
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Paper Abstract

Phase-only liquid-crystal spatial light modulators (SLMs) provide an excellent means of producing electrically controllable, dynamic, and repeatable aberrations. Emulating the aberrating effects of atmospheric turbulence is the application studied here. This paper implements a new method for designing a SLM-based turbulent path in the laboratory. The turbulent path was constructed with well-calibrated SLMs and was subsequently used to implement an appropriately scaled ground-to-air laser engagement. After propagation through the turbulent path, the irradiance and phase properties of the aberrated light were measured with an image sensor and a Shack-Hartmann wavefront sensor, respectively. The resulting wave structure functions and log-amplitude probability densities showed excellent agreement with theoretical expectations and the results of wave-optics simulations.

Paper Details

Date Published: 27 September 2007
PDF: 12 pages
Proc. SPIE 6711, Advanced Wavefront Control: Methods, Devices, and Applications V, 67110M (27 September 2007); doi: 10.1117/12.734411
Show Author Affiliations
Jason D. Schmidt, Air Force Institute of Technology (United States)
Matthew E. Goda, Air Force Research Lab. (United States)
Bradley D. Duncan, Univ. of Dayton (United States)

Published in SPIE Proceedings Vol. 6711:
Advanced Wavefront Control: Methods, Devices, and Applications V
Richard A. Carreras; John D. Gonglewski; Troy A. Rhoadarmer, Editor(s)

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